PMID-sentid Pub_year Sent_text compound_name comp_offset prot_official_name organism prot_offset 32474770-6 2020 However, the mRNA levels of two liver-enriched transcription factors (CEBPB and HNF1A), which are involved in regulating albumin expression, were significantly higher in cells grown in medium-containing arginine than that in cells grown in ornithine-containing medium. Ornithine 240-249 CCAAT enhancer binding protein beta Homo sapiens 70-75 32474770-6 2020 However, the mRNA levels of two liver-enriched transcription factors (CEBPB and HNF1A), which are involved in regulating albumin expression, were significantly higher in cells grown in medium-containing arginine than that in cells grown in ornithine-containing medium. Ornithine 240-249 HNF1 homeobox A Homo sapiens 80-85 32474770-6 2020 However, the mRNA levels of two liver-enriched transcription factors (CEBPB and HNF1A), which are involved in regulating albumin expression, were significantly higher in cells grown in medium-containing arginine than that in cells grown in ornithine-containing medium. Ornithine 240-249 albumin Homo sapiens 121-128 32474770-9 2020 When ornithine and arginine were depleted, albumin production was significantly reduced at the mRNA level, CEBPB mRNA levels were increased, and the level of activating form of C/EBPbeta was increased. Ornithine 5-14 albumin Homo sapiens 43-50 32474770-9 2020 When ornithine and arginine were depleted, albumin production was significantly reduced at the mRNA level, CEBPB mRNA levels were increased, and the level of activating form of C/EBPbeta was increased. Ornithine 5-14 CCAAT enhancer binding protein beta Homo sapiens 107-112 32474770-9 2020 When ornithine and arginine were depleted, albumin production was significantly reduced at the mRNA level, CEBPB mRNA levels were increased, and the level of activating form of C/EBPbeta was increased. Ornithine 5-14 CCAAT enhancer binding protein alpha Homo sapiens 177-186 32216867-11 2020 A Lrp-like regulator (smc03092) divergently transcribed from argI1 was required for arginase induction by arginine or ornithine. Ornithine 118-127 arginase Sinorhizobium meliloti 1021 61-66 32597331-1 2021 Polyamine synthesis in human cells is initiated by catalytic action of Ornithine decarboxylase (ODC) on Ornithine. Ornithine 71-80 ornithine decarboxylase 1 Homo sapiens 96-99 32094585-3 2020 Here, we show that ornithine capture by the ribosome and the nascent peptide SpeFL controls polyamine synthesis in gamma-proteobacteria by inducing the expression of the ornithine decarboxylase SpeF4, via a mechanism involving ribosome stalling and transcription antitermination. Ornithine 19-28 ornithine decarboxylase 1 Homo sapiens 170-193 32647818-1 2020 Arginase-1 is a manganese-dependent metalloenzyme that catalyzes the hydrolysis of L-arginine into L-ornithine and urea. Ornithine 99-110 arginase 1 Homo sapiens 0-10 32155745-2 2020 In mammalian cells Put is formed exclusively from L-ornithine by ornithine decarboxylase (ODC) and many potent ODC inhibitors are known. Ornithine 50-61 ornithine decarboxylase 1 Homo sapiens 65-88 32155745-2 2020 In mammalian cells Put is formed exclusively from L-ornithine by ornithine decarboxylase (ODC) and many potent ODC inhibitors are known. Ornithine 50-61 ornithine decarboxylase 1 Homo sapiens 90-93 32155745-2 2020 In mammalian cells Put is formed exclusively from L-ornithine by ornithine decarboxylase (ODC) and many potent ODC inhibitors are known. Ornithine 50-61 ornithine decarboxylase 1 Homo sapiens 111-114 31933109-4 2020 Interconversion of proline, ornithine, and glutamate may therefore regulate PRODH/POX-dependent apoptosis/autophagy. Ornithine 28-37 proline dehydrogenase 1 Homo sapiens 76-81 31933109-4 2020 Interconversion of proline, ornithine, and glutamate may therefore regulate PRODH/POX-dependent apoptosis/autophagy. Ornithine 28-37 proline dehydrogenase 1 Homo sapiens 82-85 22649802-7 1993 DIAGNOSIS/TESTING: HHH syndrome is caused by mutation of SLC25A15, the gene that encodes ORNT1 (mitochondrial ornithine transporter 1), which is involved in the urea cycle and the ornithine degradation pathway. Ornithine 110-119 solute carrier family 25 member 15 Homo sapiens 57-65 22649802-7 1993 DIAGNOSIS/TESTING: HHH syndrome is caused by mutation of SLC25A15, the gene that encodes ORNT1 (mitochondrial ornithine transporter 1), which is involved in the urea cycle and the ornithine degradation pathway. Ornithine 110-119 solute carrier family 25 member 15 Homo sapiens 89-94 31287209-4 2020 G9a and GLP can also catalyze AdoSeEth-mediated ethylation of ornithine and produce histone peptides bearing lysine residues with different alkyl groups, such as H3K9meet and H3K9me2et. Ornithine 62-71 euchromatic histone lysine methyltransferase 1 Homo sapiens 8-11 31777959-6 2020 In vivo and in vitro CFB upregulated arginase 1 (ARG1) expression, increased ARG1 enzymatic activity, and stimulated the syntheses of ornithine, leading to polyamine overproduction in macrophages. Ornithine 134-143 complement factor B Mus musculus 21-24 31362455-5 2019 Forty fungal isolates were screened for ODC production, twenty fungal isolates have the higher potency to grow on L-ornithine as sole nitrogen source. Ornithine 114-125 ornithine decarboxylase 1 Homo sapiens 40-43 32110345-6 2019 A beta or gamma turn was favoured for Z = Dab, Orn or Glu due to a chi1 gauche (+) rotamer, while an alpha turn was favoured for Z = Dap (but not X = Dap) due to a gauche (-) rotamer. Ornithine 47-50 amyloid beta precursor protein Homo sapiens 0-6 31509528-0 2019 Polyamine biosynthesis in Xenopus laevis: the xlAZIN2/xlODC2 gene encodes a lysine/ornithine decarboxylase. Ornithine 83-92 antizyme inhibitor 2 S homeolog Xenopus laevis 46-53 31509528-0 2019 Polyamine biosynthesis in Xenopus laevis: the xlAZIN2/xlODC2 gene encodes a lysine/ornithine decarboxylase. Ornithine 83-92 antizyme inhibitor 2 S homeolog Xenopus laevis 54-60 31509528-6 2019 Whereas the properties of xlODC1 and xlAZIN1 were similar to those reported for their mammalian orthologues, the former catalyzing the decarboxylation of L-ornithine preferentially to that of L-lysine, xlAZIN2/xlODC2 showed important differences with respect to human and mouse AZIN2. Ornithine 154-165 ornithine decarboxylase 1 L homeolog Xenopus laevis 26-32 31509528-6 2019 Whereas the properties of xlODC1 and xlAZIN1 were similar to those reported for their mammalian orthologues, the former catalyzing the decarboxylation of L-ornithine preferentially to that of L-lysine, xlAZIN2/xlODC2 showed important differences with respect to human and mouse AZIN2. Ornithine 154-165 antizyme inhibitor 1 L homeolog Xenopus laevis 37-44 31509528-6 2019 Whereas the properties of xlODC1 and xlAZIN1 were similar to those reported for their mammalian orthologues, the former catalyzing the decarboxylation of L-ornithine preferentially to that of L-lysine, xlAZIN2/xlODC2 showed important differences with respect to human and mouse AZIN2. Ornithine 154-165 antizyme inhibitor 2 S homeolog Xenopus laevis 202-209 31509528-6 2019 Whereas the properties of xlODC1 and xlAZIN1 were similar to those reported for their mammalian orthologues, the former catalyzing the decarboxylation of L-ornithine preferentially to that of L-lysine, xlAZIN2/xlODC2 showed important differences with respect to human and mouse AZIN2. Ornithine 154-165 antizyme inhibitor 2 S homeolog Xenopus laevis 210-216 31509528-6 2019 Whereas the properties of xlODC1 and xlAZIN1 were similar to those reported for their mammalian orthologues, the former catalyzing the decarboxylation of L-ornithine preferentially to that of L-lysine, xlAZIN2/xlODC2 showed important differences with respect to human and mouse AZIN2. Ornithine 154-165 antizyme inhibitor 2 Mus musculus 204-209 31093850-12 2019 The ornithine/arginine and ornithine/citrulline ratios were increased in CD73-/- compared to controls. Ornithine 4-13 5' nucleotidase, ecto Mus musculus 73-77 31093850-12 2019 The ornithine/arginine and ornithine/citrulline ratios were increased in CD73-/- compared to controls. Ornithine 27-36 5' nucleotidase, ecto Mus musculus 73-77 31509528-7 2019 xlAZIN2 did not behave as an antizyme inhibitor, but it rather acts as an authentic decarboxylase forming cadaverine, due to its higher affinity to L-lysine than to L-ornithine as substrate; so, in accordance with this, it should be named as lysine decarboxylase (LDC) or lysine/ornithine decarboxylase (LODC). Ornithine 165-176 antizyme inhibitor 2 S homeolog Xenopus laevis 0-7 31509528-9 2019 Collectively, our results indicate that in Xenopus there is only one antizyme inhibitor (xlAZIN1) and two decarboxylases, xlODC1 and xlLDC, with clear preferences for L-ornithine and L-lysine, respectively. Ornithine 167-178 antizyme inhibitor 1 L homeolog Xenopus laevis 89-96 31509528-9 2019 Collectively, our results indicate that in Xenopus there is only one antizyme inhibitor (xlAZIN1) and two decarboxylases, xlODC1 and xlLDC, with clear preferences for L-ornithine and L-lysine, respectively. Ornithine 167-178 ornithine decarboxylase 1 L homeolog Xenopus laevis 122-128 31362455-9 2019 The enzyme had a maximum activity at 37 C, pH 7.4-7.8 and thermal stability for 20 h at 37 C, and 90 days storage stability at 4 C. A. terreus ODC had a maximum affinity (Km) for l-ornithine, l-lysine and l-arginine (0.95, 1.34 and 1.4 mM) and catalytic efficiency (kcat/Km) (4.6, 2.83, 2.46 x 10-5 mM-1 s-1). Ornithine 182-193 ornithine decarboxylase 1 Homo sapiens 146-149 30823619-7 2019 As indicated by relevance networking, isoleucine, lysine, valine, histidine, and ornithine were the most discriminant for high RFI, whereas 3 biogenic amines (carnosine, putrescine, and spermidine) and 3 diacyl-glycerophospholipids (38:4, 38:5, and 40:5) positively correlated with feed intake and body weight gain, respectively. Ornithine 81-90 RFI Gallus gallus 127-130 31354664-0 2019 Competitive Repression of the artPIQM Operon for Arginine and Ornithine Transport by Arginine Repressor and Leucine-Responsive Regulatory Protein in Escherichia coli. Ornithine 62-71 arginine repressor Escherichia coli 85-103 30890279-1 2019 AIM: Arginase-1 (Arg-1) metabolizes l-arginine to l-ornithine and urea. Ornithine 50-61 arginase 1 Homo sapiens 5-15 30890279-1 2019 AIM: Arginase-1 (Arg-1) metabolizes l-arginine to l-ornithine and urea. Ornithine 50-61 arginase 1 Homo sapiens 17-22 30926170-1 2019 l-Ornithine is found in animals as a free amino acid and is a vital component of the urea cycle in the liver; it is reported to have various functions such as promoting wound healing, promoting growth hormone secretion, hypnotic effects, and so on. Ornithine 0-11 growth hormone Mus musculus 194-208 30593514-7 2019 Mechanistically, TAp73 modifies the proline regulatory axis through regulation of enzymes GLS, OAT, and PYCR1 involved in the interconversion of proline-glutamine-ornithine. Ornithine 163-172 transformation related protein 73 Mus musculus 17-22 30593514-7 2019 Mechanistically, TAp73 modifies the proline regulatory axis through regulation of enzymes GLS, OAT, and PYCR1 involved in the interconversion of proline-glutamine-ornithine. Ornithine 163-172 pyrroline-5-carboxylate reductase 1 Homo sapiens 104-109 30665936-1 2019 Arginase (Arg) 1 is expressed by hematopoietic (e.g., macrophages) and nonhematopoietic cells (e.g., endothelial cells) and converts l-arginine into ornithine and urea. Ornithine 149-158 arginase, liver Mus musculus 0-16 30957963-5 2019 These changes are consistent with the spectroscopic and kinetic results, indicating that the variant, as compared with the wild-type OAT, shows (a) an increased Km value for l-ornithine (l-Orn), (b) an altered pyridoxal 5"-phosphate binding mode and affinity and (c) an increased thermostability. Ornithine 174-185 ornithine aminotransferase, mitochondrial Cricetulus griseus 133-136 30957963-5 2019 These changes are consistent with the spectroscopic and kinetic results, indicating that the variant, as compared with the wild-type OAT, shows (a) an increased Km value for l-ornithine (l-Orn), (b) an altered pyridoxal 5"-phosphate binding mode and affinity and (c) an increased thermostability. Ornithine 187-192 ornithine aminotransferase, mitochondrial Cricetulus griseus 133-136 30957963-7 2019 Overall, these data indicate that the slight structural changes caused by the R180T mutation, preventing a proper collocation of l-Orn at the active site of OAT, are responsible for the notable reduction of the catalytic efficiency. Ornithine 129-134 ornithine aminotransferase, mitochondrial Cricetulus griseus 157-160 31098404-5 2019 L-Ornithine increases the level of aryl hydrocarbon receptor ligand L-kynurenine produced from tryptophan metabolism in gut epithelial cells, which in turn increases RORgammat (+)IL-22(+) ILC3 cells. Ornithine 0-11 interleukin 22 Homo sapiens 179-184 31098404-6 2019 Human REG3A transgenic mice show an increased proportion of L-Ornithine producing lactobacilli in the gut contents, suggesting that gut epithelial REG3A favors the expansion of L-Ornithine producing lactobacilli. Ornithine 60-71 regenerating family member 3 alpha Homo sapiens 6-11 31098404-6 2019 Human REG3A transgenic mice show an increased proportion of L-Ornithine producing lactobacilli in the gut contents, suggesting that gut epithelial REG3A favors the expansion of L-Ornithine producing lactobacilli. Ornithine 60-71 regenerating islet-derived 3 alpha Mus musculus 147-152 31098404-6 2019 Human REG3A transgenic mice show an increased proportion of L-Ornithine producing lactobacilli in the gut contents, suggesting that gut epithelial REG3A favors the expansion of L-Ornithine producing lactobacilli. Ornithine 177-188 regenerating family member 3 alpha Homo sapiens 6-11 31098404-6 2019 Human REG3A transgenic mice show an increased proportion of L-Ornithine producing lactobacilli in the gut contents, suggesting that gut epithelial REG3A favors the expansion of L-Ornithine producing lactobacilli. Ornithine 177-188 regenerating islet-derived 3 alpha Mus musculus 147-152 30659259-5 2019 SLC7A2 was associated with the plasma levels of arginine and ornithine, and PKD1L2 with the level of glycine. Ornithine 61-70 solute carrier family 7 member 2 Homo sapiens 0-6 30832686-1 2019 BACKGROUND: y+LAT1, encoded by SCL7A7, is the protein mutated in Lysinuric Protein Intolerance (LPI), a rare metabolic disease caused by a defective cationic amino acid (CAA, arginine, lysine, ornithine) transport at the basolateral membrane of intestinal and renal tubular cells. Ornithine 193-202 solute carrier family 7 member 7 Homo sapiens 12-18 30553157-10 2019 Docking into the active site of folate receptor-alpha predicts a similar best binding pose for four of the ligands, which requires stretching of pterin and bending of glutamate/ornithine relative to the geometry in saline. Ornithine 177-186 folate receptor alpha Homo sapiens 32-53 30146690-5 2019 Positive changes of citrulline and ornithine, and negative changes in SDMA and arginine/(ornithine + citrulline) were associated with concurrent 1-year changes in homeostatic model assessment of insulin resistance. Ornithine 89-98 insulin Homo sapiens 195-202 30759381-4 2019 While cancer cells exclusively use ARG2, normal epithelial cells synthesize ornithine via ornithine aminotransferase (OAT). Ornithine 76-85 ornithine aminotransferase Homo sapiens 90-116 30634588-6 2019 Results: Our results showed that serum putrescine, directly generated from ornithine by the catalytic action of the biosynthetic enzyme ornithine decarboxylase, was significantly elevated in patients with T2D compared to those without T2D, and that it significantly correlated with the levels of glycosylated hemoglobin (HbA1c). Ornithine 75-84 ornithine decarboxylase 1 Homo sapiens 136-159 30706424-2 2019 L-ornithine serves as an intermediary in the urea cycle in periportal hepatocytes in the liver and as an activator of carbamoyl phosphate synthetase, and, like L-aspartate, by transamination to glutamate via glutamine synthetase in perivenous hepatocytes as well as by skeletal muscle and brain. Ornithine 0-11 glutamate-ammonia ligase Homo sapiens 208-228 30486347-4 2018 INH/RFP was found to disrupt fatty acid metabolism, the tricarboxylic acid cycle, amino acid metabolism, taurine metabolism, and the ornithine cycle. Ornithine 133-142 tripartite motif-containing 27 Mus musculus 4-7 30513923-3 2018 In this study, we hypothesized that a composite supplement containing fish derived-collagen peptide and ornithine (CPO) could improve skin conditions by increasing plasma growth hormone and/or insulin-like growth factor-1 (IGF-1) levels. Ornithine 104-113 growth hormone 1 Homo sapiens 171-185 30513923-3 2018 In this study, we hypothesized that a composite supplement containing fish derived-collagen peptide and ornithine (CPO) could improve skin conditions by increasing plasma growth hormone and/or insulin-like growth factor-1 (IGF-1) levels. Ornithine 104-113 insulin like growth factor 1 Homo sapiens 223-228 29944916-9 2018 Among others, alpha-ketoglutarate, hydroxyglutarate and certain amino acids (ornithine, proline and glycine) were reduced in the CS patient fibroblasts, whereas glycolytic intermediates (glucose-6-phosphate and pyruvic acid) and fatty acids (palmitic, stearic and myristic acid) were increased. Ornithine 77-86 citrate synthase Homo sapiens 129-131 30251682-2 2018 GA is caused by point mutations in the gene encoding ornithine delta-aminotransferase (OAT), a tetrameric pyridoxal 5"-phosphate-dependent enzyme catalysing the transamination of l-ornithine and alpha-ketoglutarate to glutamic-gamma-semialdehyde and l-glutamate in mitochondria. Ornithine 179-190 ornithine aminotransferase Homo sapiens 53-85 30429607-8 2018 Serum proteomic analysis identified the arginine-degrading enzyme arginase I (ARG1) in the circulation of Atg7-deficient hosts, and in vivo arginine metabolic tracing demonstrated that serum arginine was degraded to ornithine. Ornithine 216-225 arginase, liver Mus musculus 66-76 30429607-8 2018 Serum proteomic analysis identified the arginine-degrading enzyme arginase I (ARG1) in the circulation of Atg7-deficient hosts, and in vivo arginine metabolic tracing demonstrated that serum arginine was degraded to ornithine. Ornithine 216-225 arginase, liver Mus musculus 78-82 30021117-1 2018 Ornithine decarboxylase (ODC) converts C5 ornithine into C4 putrescine, a monomer for polyamide synthesis. Ornithine 42-51 ornithine decarboxylase 1 Homo sapiens 0-23 30066894-9 2018 It was postulated that the accumulated ornithine could be channeled via ODC1 to produce polyamines that promoted tumour growth. Ornithine 39-48 ornithine decarboxylase 1 Homo sapiens 72-76 30403179-3 2018 In this study, we have investigated the effect of SLC25A15, which encodes the mitochondrial ornithine carrier 1, on melanoma progression. Ornithine 92-101 solute carrier family 25 member 15 Homo sapiens 50-58 30021117-1 2018 Ornithine decarboxylase (ODC) converts C5 ornithine into C4 putrescine, a monomer for polyamide synthesis. Ornithine 42-51 ornithine decarboxylase 1 Homo sapiens 25-28 30021117-4 2018 Here, to increase ODC substrate specificity toward ornithine over lysine, molecular modelling and protein network analysis, specifically k-clique community analysis, around the substrate tunnel were performed. Ornithine 51-60 ornithine decarboxylase 1 Homo sapiens 18-21 29601948-10 2018 Moreover, AR, ADRB2, and OAZ3 might be targets of spironolactone, trimipramine, and L-ornithine in the treatment of obese PCOS. Ornithine 84-95 androgen receptor Homo sapiens 10-12 29601948-10 2018 Moreover, AR, ADRB2, and OAZ3 might be targets of spironolactone, trimipramine, and L-ornithine in the treatment of obese PCOS. Ornithine 84-95 adrenoceptor beta 2 Homo sapiens 14-19 29601948-10 2018 Moreover, AR, ADRB2, and OAZ3 might be targets of spironolactone, trimipramine, and L-ornithine in the treatment of obese PCOS. Ornithine 84-95 ornithine decarboxylase antizyme 3 Homo sapiens 25-29 29150896-4 2018 The stereospecific effect in CID of the trans-cO residue is explained by syn-facially directed proton transfer from the 4-ammonium group at cO to the C-terminal amide followed by neighboring group participation in the cleavage of the CO-NH bond, analogous to the aspartic acid and ornithine effects. Ornithine 281-290 synemin Homo sapiens 73-76 29648801-3 2018 Proline is synthesized from glutamate or ornithine through GSAL/P5C, which is reduced to proline by P5C reductase (PYCR) in a NAD(P)H-dependent reaction. Ornithine 41-50 pyrroline-5-carboxylate reductase 1 Homo sapiens 59-67 29648801-3 2018 Proline is synthesized from glutamate or ornithine through GSAL/P5C, which is reduced to proline by P5C reductase (PYCR) in a NAD(P)H-dependent reaction. Ornithine 41-50 pyrroline-5-carboxylate reductase 1 Homo sapiens 64-67 29648801-3 2018 Proline is synthesized from glutamate or ornithine through GSAL/P5C, which is reduced to proline by P5C reductase (PYCR) in a NAD(P)H-dependent reaction. Ornithine 41-50 pyrroline-5-carboxylate reductase 1 Homo sapiens 115-119 29427946-2 2018 More specifically, acryloyl derivatives of lysine, ornithine, cystine and cystamine, were employed as monomers and disulfide crosslinkers for non-covalent encapsulation of model protein bovine serum albumin (BSA) and were interfacially crosslinked via free radical polymerization to form redox-responsive protein NPs. Ornithine 51-60 albumin Homo sapiens 193-206 29240458-9 2018 These targeted DEMs were significantly enriched in D-Arginine and D-ornithine metabolism and glycerolipid metabolism of Kyoto Encyclopedia of Genes and Genomes pathways, and enriched in bradykinin receptor activity and haptoglobin binding of gene ontology biological processes. Ornithine 66-77 kininogen 1 Homo sapiens 186-196 29282796-1 2018 The ornithine transcarbamylase (OTC) gene is on the X chromosome and its product catalyzes the formation of citrulline from ornithine and carbamylphosphate in the urea cycle. Ornithine 4-13 ornithine transcarbamylase Homo sapiens 32-35 29487337-3 2018 A novel UPLC-MS method, measuring the conversion of ARG to ornithine (ORN), was developed to determine arginase 1 and arginase 2 inhibition by HOMOARG, lysine (LYS), proline (PRO), agmatine (AG), asymmetric dimethylarginine (ADMA), symmetric dimethylarginine (SDMA), and NG-Monomethyl-L-arginine (L-NMMA). Ornithine 59-68 arginase 1 Homo sapiens 103-113 29487337-3 2018 A novel UPLC-MS method, measuring the conversion of ARG to ornithine (ORN), was developed to determine arginase 1 and arginase 2 inhibition by HOMOARG, lysine (LYS), proline (PRO), agmatine (AG), asymmetric dimethylarginine (ADMA), symmetric dimethylarginine (SDMA), and NG-Monomethyl-L-arginine (L-NMMA). Ornithine 59-68 arginase 2 Homo sapiens 118-128 29487337-3 2018 A novel UPLC-MS method, measuring the conversion of ARG to ornithine (ORN), was developed to determine arginase 1 and arginase 2 inhibition by HOMOARG, lysine (LYS), proline (PRO), agmatine (AG), asymmetric dimethylarginine (ADMA), symmetric dimethylarginine (SDMA), and NG-Monomethyl-L-arginine (L-NMMA). Ornithine 70-73 arginase 1 Homo sapiens 103-113 29487337-3 2018 A novel UPLC-MS method, measuring the conversion of ARG to ornithine (ORN), was developed to determine arginase 1 and arginase 2 inhibition by HOMOARG, lysine (LYS), proline (PRO), agmatine (AG), asymmetric dimethylarginine (ADMA), symmetric dimethylarginine (SDMA), and NG-Monomethyl-L-arginine (L-NMMA). Ornithine 70-73 arginase 2 Homo sapiens 118-128 29419804-1 2018 The fluorinated ornithine analog alpha-difluoromethylornithine (DFMO, eflornithine, ornidyl) is an irreversible suicide inhibitor of ornithine decarboxylase (ODC), the first and rate-limiting enzyme of polyamine biosynthesis. Ornithine 16-25 ornithine decarboxylase 1 Homo sapiens 133-156 29419804-1 2018 The fluorinated ornithine analog alpha-difluoromethylornithine (DFMO, eflornithine, ornidyl) is an irreversible suicide inhibitor of ornithine decarboxylase (ODC), the first and rate-limiting enzyme of polyamine biosynthesis. Ornithine 16-25 ornithine decarboxylase 1 Homo sapiens 158-161 29450408-3 2018 In this report, we blocked the arginine-ornithine metabolic pathway by inhibiting the enzyme arginase-1 with Nomega-hydroxy-nor-arginine (nor-NOHA) to make arginine more available to the alternate citrulline pathway for augmented NO production and increased incidence of autoimmune T1D in female non-obese diabetic (NOD) mice. Ornithine 40-49 arginase, liver Mus musculus 93-103 29410783-3 2018 In the classical pathway, arginine (Arg) is transformed into ornithine, which is then decarboxylated by ornithine decarboxylase (ODC1) to produce putrescine which is the substrate for the production of spermidine and spermine. Ornithine 61-70 ornithine decarboxylase Ovis aries 129-133 29080161-5 2018 We describe the methodology employed for the determination of ODC and ADC activities in plant tissues by detecting the release of (C14) CO2 using (C14) labelled substrates (ornithine or arginine). Ornithine 173-182 ornithine decarboxylase 1 Homo sapiens 62-65 28679527-1 2017 Trypanosoma brucei, protozoan parasites that cause human African trypanosomiasis (HAT), depend on ornithine uptake and metabolism by ornithine decarboxylase (ODC) for survival. Ornithine 98-107 ornithine decarboxylase 1 Homo sapiens 133-156 27989597-1 2017 Vertebrate ALDH18A1 genes encode a bifunctional mitochondrial enzyme, catalyzing a 2-step conversion of glutamate to glutamyl semialdehyde, subsequently converted into proline, ornithine and arginine. Ornithine 177-186 aldehyde dehydrogenase 18 family, member A1 Rattus norvegicus 11-19 29187192-9 2017 Identified metabolites were related to the bradykinin system, involved in oxidative stress (e.g., glutamine or pipecolate) or linked to the urea cycle (e.g., ornithine or citrulline). Ornithine 158-167 kininogen 1 Homo sapiens 43-53 28708224-2 2017 CASE REPORT: We report a case of a 17-year-old girl with GACR, for whom the level of serum ornithine had been reduced by an arginine-restricted diet. Ornithine 91-100 ornithine aminotransferase Homo sapiens 57-61 28722259-0 2017 l-Ornithine and l-lysine stimulate gastrointestinal motility via transient receptor potential vanilloid 1. Ornithine 0-11 transient receptor potential cation channel, subfamily V, member 1 Mus musculus 65-105 28722259-5 2017 Moreover, the stimulatory effect of Orn and Lys was abolished in TRPV1-knockout mice. Ornithine 36-39 transient receptor potential cation channel, subfamily V, member 1 Mus musculus 65-70 28679527-1 2017 Trypanosoma brucei, protozoan parasites that cause human African trypanosomiasis (HAT), depend on ornithine uptake and metabolism by ornithine decarboxylase (ODC) for survival. Ornithine 98-107 ornithine decarboxylase 1 Homo sapiens 158-161 28501704-1 2017 Solute carrier family 7, member 2 (SLC7A2) gene encodes a protein called cationic amino acid transporter 2, which mediates the transport of arginine, lysine and ornithine. Ornithine 161-170 solute carrier family 7 member 2 Homo sapiens 0-33 29254168-5 2017 Targeted metabolomics including 24 metabolites revealed that most tricarboxylic acid (TCA) cycle intermediates, aspartate-derived asparagine, alanine and ornithine-derived polyamines were strongly down-regulated in SLC25A22 knockdown cells. Ornithine 154-163 solute carrier family 25 member 22 Homo sapiens 215-223 29254168-6 2017 Moreover, targeted kinetic isotope analysis showed that most of the 13C-labeled ornithine-derived polyamines were significantly decreased in SLC25A22 knockdown cells and culture medium. Ornithine 80-89 solute carrier family 25 member 22 Homo sapiens 141-149 28294536-9 2017 The embryo-defective phenotype in nagk/NAGK plants cannot be rescued by watering nagk/NAGK plants with arginine or ornithine supplementation. Ornithine 115-124 N-acetyl-l-glutamate kinase Arabidopsis thaliana 34-38 28294536-9 2017 The embryo-defective phenotype in nagk/NAGK plants cannot be rescued by watering nagk/NAGK plants with arginine or ornithine supplementation. Ornithine 115-124 N-acetyl-l-glutamate kinase Arabidopsis thaliana 39-43 28501704-1 2017 Solute carrier family 7, member 2 (SLC7A2) gene encodes a protein called cationic amino acid transporter 2, which mediates the transport of arginine, lysine and ornithine. Ornithine 161-170 solute carrier family 7 member 2 Homo sapiens 35-41 28272331-4 2017 In general, OAT serves to form glutamate from ornithine, with the notable exception of the intestine, where citrulline (Cit) or arginine (Arg) are end products. Ornithine 46-55 ornithine aminotransferase Homo sapiens 12-15 28695314-8 2017 Competence of SlCAT2 for Arg transport was demonstrated measuring uptake of [3H]Arg in proteoliposomes which was trans-stimulated by internal Arg or ornithine. Ornithine 149-158 catalase isozyme 2 Solanum lycopersicum 14-20 28513740-2 2017 GH-releasing activity after intraduodenal administration of l-Orn was blocked by [d-Lys3]-GHRP-6, an antagonist of the ghrelin receptor; however, l-Orn (100 muM) has no affinity for the ghrelin receptor, suggesting that the GH-releasing activity of l-Orn is mediated via ghrelin release and activation of the ghrelin receptor. Ornithine 60-65 ghrelin and obestatin prepropeptide Rattus norvegicus 119-126 28513740-2 2017 GH-releasing activity after intraduodenal administration of l-Orn was blocked by [d-Lys3]-GHRP-6, an antagonist of the ghrelin receptor; however, l-Orn (100 muM) has no affinity for the ghrelin receptor, suggesting that the GH-releasing activity of l-Orn is mediated via ghrelin release and activation of the ghrelin receptor. Ornithine 146-151 ghrelin and obestatin prepropeptide Rattus norvegicus 119-126 28513740-2 2017 GH-releasing activity after intraduodenal administration of l-Orn was blocked by [d-Lys3]-GHRP-6, an antagonist of the ghrelin receptor; however, l-Orn (100 muM) has no affinity for the ghrelin receptor, suggesting that the GH-releasing activity of l-Orn is mediated via ghrelin release and activation of the ghrelin receptor. Ornithine 146-151 ghrelin and obestatin prepropeptide Rattus norvegicus 119-126 28513740-3 2017 Intraduodenally administered l-Orn increased ghrelin mRNA expression in the duodenum but not in the stomach or hypothalamus. Ornithine 29-34 ghrelin and obestatin prepropeptide Rattus norvegicus 45-52 28513740-4 2017 In addition, l-Orn-induced GH-releasing activity was inhibited by propranolol, an antagonist of beta-adrenergic receptor, which is known to be coupled to ghrelin release. Ornithine 13-18 gonadotropin releasing hormone receptor Rattus norvegicus 27-29 28513740-4 2017 In addition, l-Orn-induced GH-releasing activity was inhibited by propranolol, an antagonist of beta-adrenergic receptor, which is known to be coupled to ghrelin release. Ornithine 13-18 ghrelin and obestatin prepropeptide Rattus norvegicus 154-161 28513740-5 2017 In conclusion, intraduodenally administered l-Orn stimulates GH secretion through the sympathetic nervous and ghrelin systems. Ornithine 44-49 gonadotropin releasing hormone receptor Rattus norvegicus 61-63 28513740-5 2017 In conclusion, intraduodenally administered l-Orn stimulates GH secretion through the sympathetic nervous and ghrelin systems. Ornithine 44-49 ghrelin and obestatin prepropeptide Rattus norvegicus 110-117 28587687-3 2017 In the traditional pathway for polyamine synthesis, arginase converts arginine into ornithine, which is decarboxylated by ornithine decarboxylase (ODC1) to generate putrescine. Ornithine 84-93 ornithine decarboxylase 1 Homo sapiens 122-145 28587687-3 2017 In the traditional pathway for polyamine synthesis, arginase converts arginine into ornithine, which is decarboxylated by ornithine decarboxylase (ODC1) to generate putrescine. Ornithine 84-93 ornithine decarboxylase 1 Homo sapiens 147-151 28587687-7 2017 Additionally, proline is oxidized by proline oxidase to yield pyrroline-5-carboxylate, which undergoes transamination with glutamate to produce ornithine for decarboxylation by ODC1. Ornithine 144-153 ornithine decarboxylase 1 Homo sapiens 177-181 28808255-4 2017 We find that the mitochondrial form of arginase (ARG2), which hydrolyzes arginine into ornithine and urea, is induced upon obesity, and silencing or loss of ARG2 markedly suppresses PDA. Ornithine 87-96 arginase 2 Homo sapiens 49-53 28513740-0 2017 l-Ornithine stimulates growth hormone release in a manner dependent on the ghrelin system. Ornithine 0-11 gonadotropin releasing hormone receptor Rattus norvegicus 23-37 28513740-0 2017 l-Ornithine stimulates growth hormone release in a manner dependent on the ghrelin system. Ornithine 0-11 ghrelin and obestatin prepropeptide Rattus norvegicus 75-82 28513740-1 2017 We found that intraduodenal administration of l-ornithine (l-Orn) stimulates growth hormone (GH) secretion in Wistar rats, and then investigated its mechanism. Ornithine 46-57 gonadotropin releasing hormone receptor Rattus norvegicus 77-91 28513740-1 2017 We found that intraduodenal administration of l-ornithine (l-Orn) stimulates growth hormone (GH) secretion in Wistar rats, and then investigated its mechanism. Ornithine 46-57 gonadotropin releasing hormone receptor Rattus norvegicus 93-95 28513740-1 2017 We found that intraduodenal administration of l-ornithine (l-Orn) stimulates growth hormone (GH) secretion in Wistar rats, and then investigated its mechanism. Ornithine 59-64 gonadotropin releasing hormone receptor Rattus norvegicus 77-91 28513740-1 2017 We found that intraduodenal administration of l-ornithine (l-Orn) stimulates growth hormone (GH) secretion in Wistar rats, and then investigated its mechanism. Ornithine 59-64 gonadotropin releasing hormone receptor Rattus norvegicus 93-95 28513740-2 2017 GH-releasing activity after intraduodenal administration of l-Orn was blocked by [d-Lys3]-GHRP-6, an antagonist of the ghrelin receptor; however, l-Orn (100 muM) has no affinity for the ghrelin receptor, suggesting that the GH-releasing activity of l-Orn is mediated via ghrelin release and activation of the ghrelin receptor. Ornithine 60-65 gonadotropin releasing hormone receptor Rattus norvegicus 0-2 28513740-2 2017 GH-releasing activity after intraduodenal administration of l-Orn was blocked by [d-Lys3]-GHRP-6, an antagonist of the ghrelin receptor; however, l-Orn (100 muM) has no affinity for the ghrelin receptor, suggesting that the GH-releasing activity of l-Orn is mediated via ghrelin release and activation of the ghrelin receptor. Ornithine 60-65 growth hormone secretagogue receptor Rattus norvegicus 119-135 28513740-2 2017 GH-releasing activity after intraduodenal administration of l-Orn was blocked by [d-Lys3]-GHRP-6, an antagonist of the ghrelin receptor; however, l-Orn (100 muM) has no affinity for the ghrelin receptor, suggesting that the GH-releasing activity of l-Orn is mediated via ghrelin release and activation of the ghrelin receptor. Ornithine 60-65 gonadotropin releasing hormone receptor Rattus norvegicus 90-92 27943578-4 2017 We found that oral administration of both L-arginine and L-ornithine significantly increased total plasma GLP-1 levels to a similar level in GPRC6A KO and WT mice 15 minutes after gavage (both amino acids) and accumulated up to 60 minutes after gavage (L-arginine). Ornithine 57-68 glucagon Mus musculus 106-111 27943578-4 2017 We found that oral administration of both L-arginine and L-ornithine significantly increased total plasma GLP-1 levels to a similar level in GPRC6A KO and WT mice 15 minutes after gavage (both amino acids) and accumulated up to 60 minutes after gavage (L-arginine). Ornithine 57-68 G protein-coupled receptor, family C, group 6, member A Mus musculus 141-147 27943578-7 2017 In addition, this is the first study to show that also L-ornithine powerfully elicits GLP-1 release in vivo. Ornithine 55-66 glucagon Mus musculus 86-91 28270654-8 2017 An ornithine metabolism imbalance resulting from overexpression of Aurora Kinase A as a result of a single, recurrent heterozygous deletion on chromosome 19, common to all fibrolamellar carcinomas, can lead to a c-Myc and ornithine decarboxylase overexpression that results in ornithine transcarboxylase dysfunction with urea cycle disorder and subsequent hyperammonemia. Ornithine 3-12 aurora kinase A Homo sapiens 67-82 28270654-8 2017 An ornithine metabolism imbalance resulting from overexpression of Aurora Kinase A as a result of a single, recurrent heterozygous deletion on chromosome 19, common to all fibrolamellar carcinomas, can lead to a c-Myc and ornithine decarboxylase overexpression that results in ornithine transcarboxylase dysfunction with urea cycle disorder and subsequent hyperammonemia. Ornithine 3-12 MYC proto-oncogene, bHLH transcription factor Homo sapiens 212-217 28270654-8 2017 An ornithine metabolism imbalance resulting from overexpression of Aurora Kinase A as a result of a single, recurrent heterozygous deletion on chromosome 19, common to all fibrolamellar carcinomas, can lead to a c-Myc and ornithine decarboxylase overexpression that results in ornithine transcarboxylase dysfunction with urea cycle disorder and subsequent hyperammonemia. Ornithine 3-12 ornithine decarboxylase 1 Homo sapiens 222-245 28137860-3 2017 Glycine amidinotransferase (GATM) catalyzes the rate-limiting step of creatine biosynthesis: the transfer of an amidino group from arginine to glycine to form ornithine and guanidinoacetate. Ornithine 159-168 glycine amidinotransferase (L-arginine:glycine amidinotransferase) Mus musculus 28-32 27998825-2 2017 Arg1 uses the substrate l-arginine to create l-ornithine, a precursor molecule required for collagen formation and vascular smooth muscle cell differentiation. Ornithine 45-56 arginase, liver Mus musculus 0-4 28166740-1 2017 BACKGROUND: Cystinuria is an inherited metabolic disease that is caused by defects in two genes, SLC3A1 and SLC7A9, which result in a renal reabsorptive defect of cystine and other dibasic amino acids, including ornithine, arginine, and lysine. Ornithine 212-221 solute carrier family 3 member 1 Homo sapiens 97-103 28166740-1 2017 BACKGROUND: Cystinuria is an inherited metabolic disease that is caused by defects in two genes, SLC3A1 and SLC7A9, which result in a renal reabsorptive defect of cystine and other dibasic amino acids, including ornithine, arginine, and lysine. Ornithine 212-221 solute carrier family 7 member 9 Homo sapiens 108-114 29332900-1 2017 Brain protein synthesis and the plasma concentration of growth hormone (GH) are sensitive to dietary ornithine. Ornithine 101-110 gonadotropin releasing hormone receptor Rattus norvegicus 56-70 29332900-1 2017 Brain protein synthesis and the plasma concentration of growth hormone (GH) are sensitive to dietary ornithine. Ornithine 101-110 gonadotropin releasing hormone receptor Rattus norvegicus 72-74 29332900-5 2017 The plasma concentrations of GH and ghrelin, and the fractional rates of protein synthesis and RNA activity [g protein synthesized/(g RNA d)] in the brains were significantly increased after treatment with the 20% casein + 0.7% ornithine compared with the 20% casein diet alone in both the PTU-treated and control groups. Ornithine 228-237 gonadotropin releasing hormone receptor Rattus norvegicus 29-31 29332900-8 2017 The results suggest that dietary ornithine likely increases the rate of brain protein synthesis in control and PTU-treated rats, and that the ornithine-induced increase in the GH concentration may stimulate mainly brain protein synthesis via ghrelin. Ornithine 142-151 gonadotropin releasing hormone receptor Rattus norvegicus 176-178 29332900-8 2017 The results suggest that dietary ornithine likely increases the rate of brain protein synthesis in control and PTU-treated rats, and that the ornithine-induced increase in the GH concentration may stimulate mainly brain protein synthesis via ghrelin. Ornithine 142-151 ghrelin and obestatin prepropeptide Rattus norvegicus 242-249 27941031-11 2016 Interestingly, a protein, termed antizyme inhibitor (AzI) that is highly homologous with ODC, but retains no ornithine decarboxylating activity, seems to regulate cellular polyamines through its ability to negate Az. Ornithine 109-118 antizyme inhibitor 1 Homo sapiens 33-51 27941031-11 2016 Interestingly, a protein, termed antizyme inhibitor (AzI) that is highly homologous with ODC, but retains no ornithine decarboxylating activity, seems to regulate cellular polyamines through its ability to negate Az. Ornithine 109-118 antizyme inhibitor 1 Homo sapiens 53-56 27761413-1 2016 Arginase-1 (Arg1) converts arginine to urea and ornithine in the distal step of the urea cycle in liver. Ornithine 48-57 arginase, liver Mus musculus 0-10 27761413-1 2016 Arginase-1 (Arg1) converts arginine to urea and ornithine in the distal step of the urea cycle in liver. Ornithine 48-57 arginase, liver Mus musculus 12-16 27497722-0 2016 Enantioselective determination of citrulline and ornithine in the urine of d-amino acid oxidase deficient mice using a two-dimensional high-performance liquid chromatographic system. Ornithine 49-58 D-amino acid oxidase Mus musculus 75-95 27303024-4 2016 The recombinant LcL/ODC preferentially catalyzed the decarboxylation of l-Lys over l-ornithine (l-Orn) by about 5 times. Ornithine 83-94 ornithine decarboxylase-like Nicotiana tabacum 20-23 27703199-5 2016 Here we demonstrate, using an in vivo monitoring system, that repeated oral administration of l-ornithine at an early inactive period in mice induced a phase advance in the rhythm of PER2 expression. Ornithine 94-105 period circadian clock 2 Mus musculus 183-187 27703199-6 2016 By contrast, l-ornithine administration to mouse embryonic fibroblasts did not affect the expression of PER2, indicating that l-ornithine indirectly alters the phase of PER2. Ornithine 126-137 period circadian clock 2 Mus musculus 169-173 27703199-7 2016 l-Ornithine also increased plasma levels of insulin, glucose and glucagon-like peptide-1 alongside mPer2 expression, suggesting that it exerts its effects probably via insulin secretion. Ornithine 0-11 period circadian clock 2 Mus musculus 99-104 27402627-2 2016 Transposon insertions in an ornithine decarboxylase (odc) gene in Agrobacterium tumefaciens, predicted to direct synthesis of the polyamine putrescine from ornithine, resulted in elevated cellulose. Ornithine 28-37 type III PLP-dependent enzyme Agrobacterium tumefaciens 53-56 26898547-10 2016 Gamt(MUT) treated with both ornithine and PTX did not show electro-behavioral seizures while ornithine elevated the PTX seizure threshold of Gamt(MUT) mice even further. Ornithine 93-102 guanidinoacetate methyltransferase Mus musculus 141-145 26898547-12 2016 These findings are directly and clinically relevant for patients with a creatine-deficiency syndrome due to genetic defects in GAMT and provide a rational basis for a combined ornithine/picrotoxin therapeutic intervention. Ornithine 176-185 guanidinoacetate N-methyltransferase Homo sapiens 127-131 26829900-9 2016 ALDH18A1 encodes Delta(1)-pyrroline-5-carboxylate synthase, which is related to the biosynthesis of ornithine, citrulline, arginine, and proline. Ornithine 100-109 aldehyde dehydrogenase 18 family member A1 Homo sapiens 0-8 26829900-9 2016 ALDH18A1 encodes Delta(1)-pyrroline-5-carboxylate synthase, which is related to the biosynthesis of ornithine, citrulline, arginine, and proline. Ornithine 100-109 aldehyde dehydrogenase 18 family member A1 Homo sapiens 17-58 27479442-6 2016 Cell surface-immobilized K6-InaK-N/ARG1 presented an arginase activity of 10.7 U/OD600 under the optimized conditions of 40 C, pH 10.0 and 1 mM Mn2+, which could convert more than 95% of L-Arginine (L-Arg) to L-Ornithine (L-Orn) in 16 hours. Ornithine 209-220 arginase 1 Homo sapiens 35-39 27479442-6 2016 Cell surface-immobilized K6-InaK-N/ARG1 presented an arginase activity of 10.7 U/OD600 under the optimized conditions of 40 C, pH 10.0 and 1 mM Mn2+, which could convert more than 95% of L-Arginine (L-Arg) to L-Ornithine (L-Orn) in 16 hours. Ornithine 209-214 arginase 1 Homo sapiens 35-39 26898547-8 2016 Ornithine treatment and also PTX administration led to a relative normalization of the Gamt(MUT) ECoG phenotype. Ornithine 0-9 guanidinoacetate methyltransferase Mus musculus 87-91 26898547-10 2016 Gamt(MUT) treated with both ornithine and PTX did not show electro-behavioral seizures while ornithine elevated the PTX seizure threshold of Gamt(MUT) mice even further. Ornithine 28-37 guanidinoacetate methyltransferase Mus musculus 0-4 27303024-4 2016 The recombinant LcL/ODC preferentially catalyzed the decarboxylation of l-Lys over l-ornithine (l-Orn) by about 5 times. Ornithine 96-101 ornithine decarboxylase-like Nicotiana tabacum 20-23 27126795-1 2016 Silencing of ODC also led to significantly reduced concentrations of polyamines (putrescine, spermidine and spermine), tyramine and phenolamides (caffeoylputrescine and dicaffeoylspermidine) with concomitant increases in concentrations of amino acids ornithine, arginine, aspartate, glutamate and glutamine. Ornithine 251-260 ornithine decarboxylase Nicotiana tabacum 13-16 25952544-7 2016 As one of puerarin-upregulated proteins, mitochondrial arginase-2 hydrolyzes L-arginine to L-ornithine, thereby competing with neuronal NOS for substrate L-arginine in mitochondria. Ornithine 91-102 arginase 2 Rattus norvegicus 55-65 26831650-2 2016 The arginine, one of the major amino acids in grape musts, is metabolized by arginase (encoded by CAR1) to ornithine and urea. Ornithine 107-116 arginase Saccharomyces cerevisiae S288C 98-102 26773858-10 2016 Further study demonstrated that the increase in ornithine level may result from the increased expression of arginase 2 in HUVECs, which mediates the hydrolysis of arginine to form ornithine. Ornithine 48-57 arginase 2 Homo sapiens 108-118 26403849-3 2016 It was found that the recombinant, purified mitochondrial solute carrier SLC25A2 when reconstituted into liposomes efficiently transports ADMA in addition to its known substrates arginine, lysine, and ornithine and in contrast to the other known mitochondrial amino acid transporters SLC25A12, SLC25A13, SLC25A15, SLC25A18, SLC25A22, and SLC25A29. Ornithine 201-210 solute carrier family 25 member 2 Homo sapiens 73-80 26475291-1 2016 Arginase 1 (Arg1) limits the availability of l-arginine for producing nitric oxide (NO) and ornithine, a substrate for polyamine synthesis. Ornithine 92-101 arginase 1 Homo sapiens 0-10 26475291-1 2016 Arginase 1 (Arg1) limits the availability of l-arginine for producing nitric oxide (NO) and ornithine, a substrate for polyamine synthesis. Ornithine 92-101 arginase 1 Homo sapiens 12-16 26940652-7 2016 The critical regulatory metabolites succinate, gamma-aminobutyric acid, arginine, ornithine and adenosine were increased in LPS-stimulated macrophages from young mice, but not macrophages from old mice. Ornithine 82-91 toll-like receptor 4 Mus musculus 124-127 26773858-10 2016 Further study demonstrated that the increase in ornithine level may result from the increased expression of arginase 2 in HUVECs, which mediates the hydrolysis of arginine to form ornithine. Ornithine 180-189 arginase 2 Homo sapiens 108-118 26589310-0 2016 Heterologous Expression in Yeast of Human Ornithine Carriers ORNT1 and ORNT2 and of ORNT1 Alleles Implicated in HHH Syndrome in Humans. Ornithine 42-51 solute carrier family 25 member 15 Homo sapiens 61-66 25630515-2 2016 The effect of ornithine acetyltransferase (OATase; ArgJ) on l-ornithine production was investigated, and C. glutamicum 1006 was engineered to overproduce l-ornithine as a major product by inactivating regulatory repressor argR gene and overexpressing argJ gene. Ornithine 60-71 bifunctional glutamate N-acetyltransferase/amino-acid acetyltransferase ArgJ Corynebacterium glutamicum ATCC 13032 51-55 25630515-2 2016 The effect of ornithine acetyltransferase (OATase; ArgJ) on l-ornithine production was investigated, and C. glutamicum 1006 was engineered to overproduce l-ornithine as a major product by inactivating regulatory repressor argR gene and overexpressing argJ gene. Ornithine 154-165 bifunctional glutamate N-acetyltransferase/amino-acid acetyltransferase ArgJ Corynebacterium glutamicum ATCC 13032 251-255 25630515-5 2016 To enhance l-ornithine production, the argJ gene from C. glutamicum ATCC 13032 was overexpressed. Ornithine 11-22 bifunctional glutamate N-acetyltransferase/amino-acid acetyltransferase ArgJ Corynebacterium glutamicum ATCC 13032 39-43 25630515-6 2016 In flask cultures, the resulting strain, C. glutamicum 1006 argR-argJ, produced 31.6 g/L l-ornithine, which is 54.15% more than that produced by C. glutamicum 1006. Ornithine 89-100 bifunctional glutamate N-acetyltransferase/amino-acid acetyltransferase ArgJ Corynebacterium glutamicum ATCC 13032 65-69 25630515-8 2016 ArgJ strongly influences the production of l-ornithine in C. glutamicum. Ornithine 43-54 bifunctional glutamate N-acetyltransferase/amino-acid acetyltransferase ArgJ Corynebacterium glutamicum ATCC 13032 0-4 26971935-5 2016 Real-time PCR analysis revealed in APPwt cells significant decreases of ARG1 and ARG2 which are responsible for lysing arginine into ornithine and urea; this reduction was followed by significantly lower enzyme activity. Ornithine 133-142 arginase 1 Homo sapiens 72-76 26971935-5 2016 Real-time PCR analysis revealed in APPwt cells significant decreases of ARG1 and ARG2 which are responsible for lysing arginine into ornithine and urea; this reduction was followed by significantly lower enzyme activity. Ornithine 133-142 arginase 2 Homo sapiens 81-85 26971935-8 2016 Ornithine decarboxylase (ODC), which decarboxylates ornithine to form putrescine was also reduced. Ornithine 52-61 ornithine decarboxylase 1 Homo sapiens 0-23 26971935-8 2016 Ornithine decarboxylase (ODC), which decarboxylates ornithine to form putrescine was also reduced. Ornithine 52-61 ornithine decarboxylase 1 Homo sapiens 25-28 26589310-0 2016 Heterologous Expression in Yeast of Human Ornithine Carriers ORNT1 and ORNT2 and of ORNT1 Alleles Implicated in HHH Syndrome in Humans. Ornithine 42-51 solute carrier family 25 member 2 Homo sapiens 71-76 26589310-5 2016 In yeast Saccharomyces cerevisiae the major function of the transporter (encoded by Arg11) is to shuttle ornithine from the mitochondrial matrix to the cytosol. Ornithine 105-114 Ort1p Saccharomyces cerevisiae S288C 84-89 26537638-1 2015 Arginase 1 and Arginase 2 are homologous enzymes that convert l-Arginine to Urea and l-ornithine and compete with nitric oxide synthases for l-Arginine. Ornithine 85-96 arginase 1 Homo sapiens 0-10 26467175-2 2015 This genetic disorder is caused by 40+ mutations found fairly uniformly spread throughout the ARG1 gene, resulting in partial or complete loss of enzyme function, which catalyzes the hydrolysis of arginine to ornithine and urea. Ornithine 209-218 arginase, liver Mus musculus 94-98 26537638-1 2015 Arginase 1 and Arginase 2 are homologous enzymes that convert l-Arginine to Urea and l-ornithine and compete with nitric oxide synthases for l-Arginine. Ornithine 85-96 arginase 2 Homo sapiens 15-25 26002808-4 2015 There are, however, marked differences in their substrate specificities including their affinity for ornithine (KM values in the mM to muM range). Ornithine 101-110 latexin Homo sapiens 135-138 26770910-0 2015 The Effect of L-Ornithine on the Phosphorylation of mTORC1 Downstream Targets in Rat Liver. Ornithine 14-25 CREB regulated transcription coactivator 1 Mus musculus 52-58 26770910-9 2015 The oral administration of Orn to the rat also augmented the phosphorylation of mTORC1 downstream targets notably in S6 at 1 h. Our findings demonstrate that Orn has the potential to induce the phosphorylation of downstream targets of mTORC1 in the rat liver. Ornithine 27-30 CREB regulated transcription coactivator 1 Mus musculus 80-86 26770910-9 2015 The oral administration of Orn to the rat also augmented the phosphorylation of mTORC1 downstream targets notably in S6 at 1 h. Our findings demonstrate that Orn has the potential to induce the phosphorylation of downstream targets of mTORC1 in the rat liver. Ornithine 27-30 CREB regulated transcription coactivator 1 Mus musculus 235-241 26770910-9 2015 The oral administration of Orn to the rat also augmented the phosphorylation of mTORC1 downstream targets notably in S6 at 1 h. Our findings demonstrate that Orn has the potential to induce the phosphorylation of downstream targets of mTORC1 in the rat liver. Ornithine 158-161 CREB regulated transcription coactivator 1 Mus musculus 80-86 26770910-9 2015 The oral administration of Orn to the rat also augmented the phosphorylation of mTORC1 downstream targets notably in S6 at 1 h. Our findings demonstrate that Orn has the potential to induce the phosphorylation of downstream targets of mTORC1 in the rat liver. Ornithine 158-161 CREB regulated transcription coactivator 1 Mus musculus 235-241 26358771-1 2015 Arginase deficiency is caused by deficiency of arginase 1 (ARG1), a urea cycle enzyme that converts arginine to ornithine. Ornithine 112-121 arginase 1 Homo sapiens 47-57 26358771-1 2015 Arginase deficiency is caused by deficiency of arginase 1 (ARG1), a urea cycle enzyme that converts arginine to ornithine. Ornithine 112-121 arginase 1 Homo sapiens 59-63 26002808-7 2015 In the liver, human ORC1 catalyzes the citrulline/ornithine exchange across the mitochondrial inner membrane, which is required for the urea cycle. Ornithine 50-59 origin recognition complex subunit 1 Homo sapiens 20-24 26377079-8 2015 The uptake was Na+-independent, and was inhibited by L-ornithine, L-arginine, and L-lysine, suggesting the involvement of CAT1 in L-ornithine transport at the inner BRB. Ornithine 53-64 solute carrier family 7 member 1 Rattus norvegicus 122-126 26093026-1 2015 Tissue polyamine levels are largely determined by the activity of ornithine decarboxylase (ODC, EC 4.1.17), which catalyzes the conversion of ornithine to the diamine putrescine. Ornithine 66-75 ornithine decarboxylase 1 Homo sapiens 91-94 26377079-8 2015 The uptake was Na+-independent, and was inhibited by L-ornithine, L-arginine, and L-lysine, suggesting the involvement of CAT1 in L-ornithine transport at the inner BRB. Ornithine 130-141 solute carrier family 7 member 1 Rattus norvegicus 122-126 26377079-10 2015 Retinal pigment epithelium-J cells showed that the basal-to-cell (B-to-C) uptake of [3H]L-ornithine was greater than that of the apical-to-cell (A-to-C) uptake, and the B-to-C transport was inhibited by unlabeled L-ornithine, suggesting the involvement of CAT1 in the blood-to-cell transport of L-ornithine across the basal membrane at the outer BRB. Ornithine 88-99 solute carrier family 7 member 1 Rattus norvegicus 256-260 26377079-11 2015 CONCLUSIONS: These suggest the involvement of CAT1 in L-ornithine transport at the luminal and abluminal sides of the inner BRB and the basal side of the outer BRB. Ornithine 54-65 solute carrier family 7 member 1 Rattus norvegicus 46-50 26026163-3 2015 ALDH18A1 encodes delta-1-pyrroline-5-carboxylate synthase (P5CS), an enzyme that catalyses the first and common step of proline and ornithine biosynthesis from glutamate. Ornithine 132-141 aldehyde dehydrogenase 18 family member A1 Homo sapiens 0-8 26026163-3 2015 ALDH18A1 encodes delta-1-pyrroline-5-carboxylate synthase (P5CS), an enzyme that catalyses the first and common step of proline and ornithine biosynthesis from glutamate. Ornithine 132-141 aldehyde dehydrogenase 18 family member A1 Homo sapiens 17-57 26026163-3 2015 ALDH18A1 encodes delta-1-pyrroline-5-carboxylate synthase (P5CS), an enzyme that catalyses the first and common step of proline and ornithine biosynthesis from glutamate. Ornithine 132-141 aldehyde dehydrogenase 18 family member A1 Homo sapiens 59-63 26026163-6 2015 Low levels of plasma ornithine, citrulline, arginine and proline in four individuals from two families suggested P5CS deficiency. Ornithine 21-30 aldehyde dehydrogenase 18 family member A1 Homo sapiens 113-117 26284090-14 2015 Our study contributes to the functional characterization of P5CDH in biotic and abiotic stress conditions, by revealing its capacity to modulate the fate of P5C, and prevalence of Orn or Glu as Pro precursors in tissues that initially consumed Pro. Ornithine 180-183 aldehyde dehydrogenase 12A1 Arabidopsis thaliana 60-65 25683148-3 2015 Hepatocytes have galactokinase (GALK), which metabolizes galactose for gluconeogenesis, and ornithine transcarbamylase (OTC), which converts ornithine to arginine in the urea cycle. Ornithine 92-101 ornithine transcarbamylase Homo sapiens 120-123 26271664-3 2015 Unlike most bacteria, S. meliloti 1021 is annotated as encoding two enzymes producing ornithine: N-acetylornithine (NAO) deacetylase (ArgE) hydrolyses NAO to acetate and ornithine, and glutamate N-acetyltransferase (ArgJ) transacetylates l-glutamate with the acetyl group from NAO, forming ornithine and N-acetylglutamate (NAG). Ornithine 86-95 acetylornithine deacetylase Sinorhizobium meliloti 1021 134-138 26271664-3 2015 Unlike most bacteria, S. meliloti 1021 is annotated as encoding two enzymes producing ornithine: N-acetylornithine (NAO) deacetylase (ArgE) hydrolyses NAO to acetate and ornithine, and glutamate N-acetyltransferase (ArgJ) transacetylates l-glutamate with the acetyl group from NAO, forming ornithine and N-acetylglutamate (NAG). Ornithine 86-95 bifunctional glutamate N-acetyltransferase/amino-acid acetyltransferase ArgJ Sinorhizobium meliloti 1021 216-220 26271664-3 2015 Unlike most bacteria, S. meliloti 1021 is annotated as encoding two enzymes producing ornithine: N-acetylornithine (NAO) deacetylase (ArgE) hydrolyses NAO to acetate and ornithine, and glutamate N-acetyltransferase (ArgJ) transacetylates l-glutamate with the acetyl group from NAO, forming ornithine and N-acetylglutamate (NAG). Ornithine 105-114 acetylornithine deacetylase Sinorhizobium meliloti 1021 134-138 26271664-3 2015 Unlike most bacteria, S. meliloti 1021 is annotated as encoding two enzymes producing ornithine: N-acetylornithine (NAO) deacetylase (ArgE) hydrolyses NAO to acetate and ornithine, and glutamate N-acetyltransferase (ArgJ) transacetylates l-glutamate with the acetyl group from NAO, forming ornithine and N-acetylglutamate (NAG). Ornithine 105-114 bifunctional glutamate N-acetyltransferase/amino-acid acetyltransferase ArgJ Sinorhizobium meliloti 1021 216-220 26271664-3 2015 Unlike most bacteria, S. meliloti 1021 is annotated as encoding two enzymes producing ornithine: N-acetylornithine (NAO) deacetylase (ArgE) hydrolyses NAO to acetate and ornithine, and glutamate N-acetyltransferase (ArgJ) transacetylates l-glutamate with the acetyl group from NAO, forming ornithine and N-acetylglutamate (NAG). Ornithine 105-114 acetylornithine deacetylase Sinorhizobium meliloti 1021 134-138 26271664-3 2015 Unlike most bacteria, S. meliloti 1021 is annotated as encoding two enzymes producing ornithine: N-acetylornithine (NAO) deacetylase (ArgE) hydrolyses NAO to acetate and ornithine, and glutamate N-acetyltransferase (ArgJ) transacetylates l-glutamate with the acetyl group from NAO, forming ornithine and N-acetylglutamate (NAG). Ornithine 105-114 bifunctional glutamate N-acetyltransferase/amino-acid acetyltransferase ArgJ Sinorhizobium meliloti 1021 216-220 26271664-7 2015 The purified ArgJ was highly active in NAO deacetylation/glutamate transacetylation and was significantly inhibited by ornithine but not by arginine. Ornithine 119-128 bifunctional glutamate N-acetyltransferase/amino-acid acetyltransferase ArgJ Sinorhizobium meliloti 1021 13-17 25938595-1 2015 Arginase-1 catalyzes the conversion of arginine to ornithine and urea, which is the final step of the urea cycle used to remove excess ammonia from the body. Ornithine 51-60 arginase, liver Mus musculus 0-10 25109415-15 2015 Patients with at least one missense mutation in SLC3A1 had significantly lower levels of lysine, arginine, and ornithine but not cystine than patients with all other combinations of mutations. Ornithine 111-120 solute carrier family 3 member 1 Homo sapiens 48-54 25797592-4 2015 A strong correlation was also observed between HM and mRNA expression levels of arginase 1, an enzyme that catalyzes the conversion of arginine to ornithine. Ornithine 147-156 arginase 1 Homo sapiens 80-90 24865414-7 2015 Biochemical analyses revealed that ESBL producers more frequently utilized inositol, ornithine, sorbitol, melibiose, and saccharose, whereas the control group more frequently used esculin, lysine, arginine, and dulcitol. Ornithine 85-94 EsbL Escherichia coli 35-39 25807386-4 2015 Increased arginase can also provide ornithine for synthesis of polyamines via ornithine decarboxylase (ODC) and proline/collagen via ornithine aminotransferase (OAT), leading to vascular cell proliferation and collagen formation, respectively. Ornithine 36-45 ornithine decarboxylase, structural 1 Mus musculus 78-101 25807386-4 2015 Increased arginase can also provide ornithine for synthesis of polyamines via ornithine decarboxylase (ODC) and proline/collagen via ornithine aminotransferase (OAT), leading to vascular cell proliferation and collagen formation, respectively. Ornithine 36-45 ornithine decarboxylase, structural 1 Mus musculus 103-106 25874378-5 2015 HHH syndrome is caused by impaired ornithine transport across the inner mitochondrial membrane due to mutations in SLC25A15 gene, which encodes for the mitochondrial ornithine carrier ORC1. Ornithine 35-44 solute carrier family 25 member 15 Homo sapiens 115-123 25874378-5 2015 HHH syndrome is caused by impaired ornithine transport across the inner mitochondrial membrane due to mutations in SLC25A15 gene, which encodes for the mitochondrial ornithine carrier ORC1. Ornithine 35-44 origin recognition complex subunit 1 Homo sapiens 184-188 25874378-5 2015 HHH syndrome is caused by impaired ornithine transport across the inner mitochondrial membrane due to mutations in SLC25A15 gene, which encodes for the mitochondrial ornithine carrier ORC1. Ornithine 166-175 solute carrier family 25 member 15 Homo sapiens 115-123 25874378-5 2015 HHH syndrome is caused by impaired ornithine transport across the inner mitochondrial membrane due to mutations in SLC25A15 gene, which encodes for the mitochondrial ornithine carrier ORC1. Ornithine 166-175 origin recognition complex subunit 1 Homo sapiens 184-188 25286138-0 2015 Effects of time of L-ornithine administration on the diurnal rhythms of plasma growth hormone, melatonin, and corticosterone levels in mice. Ornithine 19-30 growth hormone Mus musculus 79-93 25286138-2 2015 Oral administration of several nutritional factors, including L-ornithine, modulates these hormonal secretions and induces an acute increase in plasma GH levels. Ornithine 62-73 growth hormone Mus musculus 151-153 25286138-4 2015 In this study, we evaluated whether the diurnal rhythms of plasma GH, melatonin, and corticosterone secretion were altered by the daily administration of L-ornithine as well as the timing of the administration, in CBA/N mice. Ornithine 154-165 growth hormone Mus musculus 66-68 25286138-5 2015 Our results showed that the plasma GH levels that peaked at light phase were amplified by L-ornithine (500 mg/kg) administered at Zeitgeber time (ZT) 22, but not at ZT10. Ornithine 90-101 growth hormone Mus musculus 35-37 25286138-8 2015 The effects of L-ornithine on plasma GH rhythms lasted for at least 2 days after cessation of the daily administration. Ornithine 15-26 growth hormone Mus musculus 37-39 25286138-11 2015 In conclusion, our data suggest that a daily administration of L-ornithine regulates the diurnal rhythms of GH, melatonin, and corticosterone in a manner dependent on administration time, which might be related to the diurnal rhythms of L-ornithine metabolism. Ornithine 63-74 growth hormone Mus musculus 108-110 26639850-1 2015 Brain protein synthesis and the plasma concentration of growth hormone (GH) are sensitive to dietary ornithine. Ornithine 101-110 gonadotropin releasing hormone receptor Rattus norvegicus 56-70 25434494-1 2015 Ornithine transcarbamylase deficiency (OTCD, OMIM 311250), the most common urea cycle disorder, results in impaired synthesis of citrulline from carbamoyl phosphate and ornithine. Ornithine 169-178 ornithine transcarbamylase Homo sapiens 0-26 25526897-3 2015 Intragastric injection of l-ornithine (2.5%) in urethane-anesthetized rats activated sympathetic nerve activity to white adipose tissue (WAT-SNA), and stimulated sympathetic nerve activity to brown adipose tissue (BAT-SNA). Ornithine 26-37 snail family transcriptional repressor 1 Rattus norvegicus 141-144 25526897-3 2015 Intragastric injection of l-ornithine (2.5%) in urethane-anesthetized rats activated sympathetic nerve activity to white adipose tissue (WAT-SNA), and stimulated sympathetic nerve activity to brown adipose tissue (BAT-SNA). Ornithine 26-37 snail family transcriptional repressor 1 Rattus norvegicus 218-221 25526897-4 2015 In addition, WAT-SNA responses to l-ornithine were abolished in rats with ablated abdominal vagal nerves. Ornithine 34-45 snail family transcriptional repressor 1 Rattus norvegicus 17-20 25526897-6 2015 Proopiomelanocortin (POMC) levels in the hypothalamus and uncoupling protein 1 (UCP1) levels in brown adipose tissue were significantly increased in rats that ingested 2.5% l-ornithine for 9 weeks. Ornithine 173-184 proopiomelanocortin Rattus norvegicus 0-19 25526897-6 2015 Proopiomelanocortin (POMC) levels in the hypothalamus and uncoupling protein 1 (UCP1) levels in brown adipose tissue were significantly increased in rats that ingested 2.5% l-ornithine for 9 weeks. Ornithine 173-184 proopiomelanocortin Rattus norvegicus 21-25 25526897-6 2015 Proopiomelanocortin (POMC) levels in the hypothalamus and uncoupling protein 1 (UCP1) levels in brown adipose tissue were significantly increased in rats that ingested 2.5% l-ornithine for 9 weeks. Ornithine 173-184 uncoupling protein 1 Rattus norvegicus 58-78 25526897-6 2015 Proopiomelanocortin (POMC) levels in the hypothalamus and uncoupling protein 1 (UCP1) levels in brown adipose tissue were significantly increased in rats that ingested 2.5% l-ornithine for 9 weeks. Ornithine 173-184 uncoupling protein 1 Rattus norvegicus 80-84 25516968-5 2015 Expression of Odc1, the rate-limiting enzyme in the conversion of ornithine into putrescine in the synthesis of polyamines, is reduced in Mga mutant cells, and the survival of mutant ICM cells as well as ESCs is rescued in culture by the addition of exogenous putrescine. Ornithine 66-75 ornithine decarboxylase, structural 1 Mus musculus 14-18 25516968-5 2015 Expression of Odc1, the rate-limiting enzyme in the conversion of ornithine into putrescine in the synthesis of polyamines, is reduced in Mga mutant cells, and the survival of mutant ICM cells as well as ESCs is rescued in culture by the addition of exogenous putrescine. Ornithine 66-75 MAX gene associated Mus musculus 138-141 26639850-1 2015 Brain protein synthesis and the plasma concentration of growth hormone (GH) are sensitive to dietary ornithine. Ornithine 101-110 gonadotropin releasing hormone receptor Rattus norvegicus 72-74 26639850-4 2015 The concentrations of plasma growth hormone (GH) and fractional rates of protein synthesis in the brains increased significantly with the 20% casein+0.7% arginine diet and still more with the 20% casein+0.7% ornithine diet compared with the 20% casein diet alone. Ornithine 208-217 gonadotropin releasing hormone receptor Rattus norvegicus 29-43 25400637-4 2014 In this perspective, I discuss the function of recepteur d"origine nantais (RON) receptor tyrosine kinase in regulating the M2-like state of macrophage activation Besides decreasing pro-inflammatory cytokine production in response to toll-like receptor-4 activation, macrophage-stimulating protein strongly suppresses nitric oxide synthase and at the same time upregulates arginase, which is the rate limiting enzyme in the ornithine biosynthesis pathway. Ornithine 424-433 toll like receptor 4 Homo sapiens 234-254 25416954-4 2014 The plastid-localized PII signaling protein controls, in a glutamine-dependent manner, the key enzyme of the ornithine synthesis pathway, N-acetyl-l-glutamate kinase (NAGK), that leads to arginine and polyamine formation. Ornithine 109-118 N-acetyl-l-glutamate kinase Arabidopsis thaliana 138-165 25416954-4 2014 The plastid-localized PII signaling protein controls, in a glutamine-dependent manner, the key enzyme of the ornithine synthesis pathway, N-acetyl-l-glutamate kinase (NAGK), that leads to arginine and polyamine formation. Ornithine 109-118 N-acetyl-l-glutamate kinase Arabidopsis thaliana 167-171 25614305-11 2015 Persistently low plasmatic levels of lysine, arginine, and ornithine, associated with dietary protein and caloric restriction and systemic inflammation, could determine a defect in coupling GH to IGF-1 production explaining why GH replacement therapy is not able to significantly improve growth impairment. Ornithine 59-68 insulin like growth factor 1 Homo sapiens 196-201 25205820-0 2014 Insulin secretion stimulated by L-arginine and its metabolite L-ornithine depends on Galpha(i2). Ornithine 62-73 guanine nucleotide binding protein (G protein), alpha inhibiting 2 Mus musculus 85-94 25205820-9 2014 In contrast, the two- to threefold increase in insulin secretion evoked by L-arginine or L-ornithine (in the presence of 16 mM glucose) was significantly reduced in islets lacking Galpha(i2). Ornithine 89-100 guanine nucleotide binding protein (G protein), alpha inhibiting 2 Mus musculus 180-189 25140796-1 2014 Ornithine decarboxylase (ODC) catalyzes the decarboxylation of ornithine to putrescine and is the rate-limiting enzyme in the polyamine biosynthesis pathway. Ornithine 63-72 ornithine decarboxylase 1 Homo sapiens 0-23 25061098-10 2014 Thus, the adverse effect of MAO-NOS3 to reduce NO generation and the transport of arginine and ornithine into conceptuses is central to an explanation for failure of normal development of MAO-NOS3, compared to control conceptuses. Ornithine 95-104 nitric oxide synthase 3 Homo sapiens 32-36 25140796-1 2014 Ornithine decarboxylase (ODC) catalyzes the decarboxylation of ornithine to putrescine and is the rate-limiting enzyme in the polyamine biosynthesis pathway. Ornithine 63-72 ornithine decarboxylase 1 Homo sapiens 25-28 24627544-7 2014 Use of MAO-SLC7A1 knockdown in conceptuses decreased arginine transport (73%, P<0.01), the abundance of ornithine decarboxylase, and nitric oxide synthase (NOS3) proteins, arginine-related amino acids [citrulline (76%, P<0.05) and ornithine (40%, P<0.05)], and polyamines, which likely accounts for their retarded development. Ornithine 107-116 solute carrier family 7 member 1 Homo sapiens 11-17 24911253-1 2014 Arginase-1 is an enzyme that catalyzes the hydrolysis of arginine to ornithine and urea in the urea cycle. Ornithine 69-78 arginase 1 Homo sapiens 0-10 24649071-3 2014 L-ornithine is a key amino acid in the urea cycle and is converted to putrescine by ornithine decarboxylase (ODC). Ornithine 0-11 ornithine decarboxylase 1 Homo sapiens 84-107 24889392-8 2014 RESULTS: Serum cortisol levels and the cortisol/DHEA-S ratio were significantly decreased in the L-ornithine group in comparison with the placebo group. Ornithine 97-108 sulfotransferase family 2A member 1 Homo sapiens 48-54 24652292-2 2014 In this work, a member of this family, SLC25A29, previously reported to be a mitochondrial carnitine/acylcarnitine- or ornithine-like carrier, has been thoroughly characterized biochemically. Ornithine 119-128 solute carrier family 25 member 29 Homo sapiens 39-47 24652292-4 2014 Its transport properties and kinetic parameters demonstrate that SLC25A29 transports arginine, lysine, homoarginine, methylarginine and, to a much lesser extent, ornithine and histidine. Ornithine 162-171 solute carrier family 25 member 29 Homo sapiens 65-73 24721342-2 2014 ORC1 is encoded by the SLC25A15 gene and catalyzes the transport of cytosolic ornithine into mitochondria in exchange for citrulline. Ornithine 78-87 origin recognition complex subunit 1 Homo sapiens 0-4 24721342-2 2014 ORC1 is encoded by the SLC25A15 gene and catalyzes the transport of cytosolic ornithine into mitochondria in exchange for citrulline. Ornithine 78-87 solute carrier family 25 member 15 Homo sapiens 23-31 24721342-8 2014 Our study demonstrates that the A15V mutation dramatically interferes with the transport properties of ORC1 since it was shown to inhibit ornithine transport nearly completely. Ornithine 138-147 origin recognition complex subunit 1 Homo sapiens 103-107 23904095-12 2014 Not only do amino acids such as ASN and GLN stimulate ODC while inhibiting AZ synthesis, but also amino acids such as lysine, valine, and ornithine, which inhibit ODC activity, increase the synthesis of AZ. Ornithine 138-147 ornithine decarboxylase 1 Homo sapiens 163-166 23904095-12 2014 Not only do amino acids such as ASN and GLN stimulate ODC while inhibiting AZ synthesis, but also amino acids such as lysine, valine, and ornithine, which inhibit ODC activity, increase the synthesis of AZ. Ornithine 138-147 ornithine decarboxylase antizyme 1 Homo sapiens 203-205 24221352-2 2014 This study aimed to investigate OAT activity in adult mouse tissues to assess the potential contribution to ornithine metabolism and to determine OAT control during postnatal development. Ornithine 108-117 ornithine aminotransferase Mus musculus 32-35 24649071-3 2014 L-ornithine is a key amino acid in the urea cycle and is converted to putrescine by ornithine decarboxylase (ODC). Ornithine 0-11 ornithine decarboxylase 1 Homo sapiens 109-112 23375628-3 2013 Arginase 1 (Arg1), a marker for the M2 anti-inflammatory subset, hydrolyzes l-arginine into urea and ornithine, a precursor to l-proline and polyamines, which are implicated in tissue repair and wound healing. Ornithine 101-110 arginase 1 Homo sapiens 0-10 24107421-2 2013 Gene targeting of the catalytic subunit (Slc7a9) in mice leads to excessive excretion of cystine, lysine, arginine, and ornithine. Ornithine 120-129 solute carrier family 7 (cationic amino acid transporter, y+ system), member 9 Mus musculus 41-47 24019517-1 2013 In most cells, cationic amino acids such as l-arginine, l-lysine, and l-ornithine are transported by cationic (CAT) and y(+)L (y(+)LAT) amino acid transporters. Ornithine 70-81 catalase Homo sapiens 111-114 23747282-2 2013 The first assay is based on the reduction of Delta(1)-pyrroline-5-carboxylate (P5C), generated from ornithine by OAT, using human pyrroline 5-carboxylate reductase 1 (PYCR1), which results in the concomitant oxidation of NADH (nicotinamide adenine dinucleotide, reduced form) to NAD+ (nicotinamide adenine dinucleotide, oxidized form). Ornithine 100-109 pyrroline-5-carboxylate reductase 1 Homo sapiens 45-77 23747282-2 2013 The first assay is based on the reduction of Delta(1)-pyrroline-5-carboxylate (P5C), generated from ornithine by OAT, using human pyrroline 5-carboxylate reductase 1 (PYCR1), which results in the concomitant oxidation of NADH (nicotinamide adenine dinucleotide, reduced form) to NAD+ (nicotinamide adenine dinucleotide, oxidized form). Ornithine 100-109 pyrroline-5-carboxylate reductase 1 Homo sapiens 79-82 23747282-2 2013 The first assay is based on the reduction of Delta(1)-pyrroline-5-carboxylate (P5C), generated from ornithine by OAT, using human pyrroline 5-carboxylate reductase 1 (PYCR1), which results in the concomitant oxidation of NADH (nicotinamide adenine dinucleotide, reduced form) to NAD+ (nicotinamide adenine dinucleotide, oxidized form). Ornithine 100-109 ornithine aminotransferase Homo sapiens 113-116 23747282-2 2013 The first assay is based on the reduction of Delta(1)-pyrroline-5-carboxylate (P5C), generated from ornithine by OAT, using human pyrroline 5-carboxylate reductase 1 (PYCR1), which results in the concomitant oxidation of NADH (nicotinamide adenine dinucleotide, reduced form) to NAD+ (nicotinamide adenine dinucleotide, oxidized form). Ornithine 100-109 pyrroline-5-carboxylate reductase 1 Homo sapiens 130-165 23847624-5 2013 The arginases (Arg1 and Arg2) metabolize l-arginine to generate l-ornithine and urea and increased expression of arginase has been proposed as a mechanism of reduced eNOS activity secondary to the depletion of l-arginine. Ornithine 64-75 arginase 1 Homo sapiens 15-19 23847624-5 2013 The arginases (Arg1 and Arg2) metabolize l-arginine to generate l-ornithine and urea and increased expression of arginase has been proposed as a mechanism of reduced eNOS activity secondary to the depletion of l-arginine. Ornithine 64-75 arginase 2 Homo sapiens 24-28 23747282-5 2013 This assay is recommended for the determination of the substrate activity of small molecules against OAT; measuring the transformation of L-ornithine at high concentrations by this assay is complicated by the fact that it also acts as a substrate for the L-glutamate oxidase (GluOx) reporter enzyme. Ornithine 138-149 ornithine aminotransferase Homo sapiens 101-104 23375628-3 2013 Arginase 1 (Arg1), a marker for the M2 anti-inflammatory subset, hydrolyzes l-arginine into urea and ornithine, a precursor to l-proline and polyamines, which are implicated in tissue repair and wound healing. Ornithine 101-110 arginase 1 Homo sapiens 12-16 23179835-9 2013 M2 macrophages constitutively produce the enzyme arginase I (argI), which sequesters L-arginine from iNOS and results in the production of ornithine and downstream polyamines and L-proline. Ornithine 139-148 arginase, liver Mus musculus 49-59 23691124-11 2013 In the insulin deficient mice, plasma citrulline and ornithine levels also increased and additionally these animals displayed elevated BCAA and AAA levels like insulin resistant and diabetic patients. Ornithine 53-62 insulin Homo sapiens 7-14 23269670-5 2013 We found that the increase in [Ca(2+)](i) stimulated by l-ornithine correlated with GLP-1 secretion and that l-ornithine stimulation increased exocytosis in a dose-dependent manner. Ornithine 56-67 glucagon Mus musculus 84-89 23269670-6 2013 Furthermore, depletion of endogenous GPRC6A by a specific small interfering RNA (siRNA) inhibited the l-ornithine-induced [Ca(2+)](i) increase and GLP-1 secretion. Ornithine 102-113 G protein-coupled receptor, family C, group 6, member A Mus musculus 37-43 23269670-6 2013 Furthermore, depletion of endogenous GPRC6A by a specific small interfering RNA (siRNA) inhibited the l-ornithine-induced [Ca(2+)](i) increase and GLP-1 secretion. Ornithine 102-113 glucagon Mus musculus 147-152 23470627-2 2013 The product of arginase activity, L-ornithine, can be metabolized into polyamines by ornithine decarboxylase. Ornithine 34-45 ornithine decarboxylase, structural 1 Mus musculus 85-108 23269670-4 2013 Application of a GPRC6A receptor antagonist, a phospholipase C inhibitor, or an IP(3) receptor antagonist significantly suppressed the l-ornithine-induced [Ca(2+)](i) increase. Ornithine 135-146 G protein-coupled receptor, family C, group 6, member A Mus musculus 17-23 23269670-4 2013 Application of a GPRC6A receptor antagonist, a phospholipase C inhibitor, or an IP(3) receptor antagonist significantly suppressed the l-ornithine-induced [Ca(2+)](i) increase. Ornithine 135-146 inositol 1,4,5-triphosphate receptor 3 Mus musculus 80-94 22870827-1 2013 The cellular uptake of L-arginine and other cationic amino acids (such as L-lysine and L-ornithine) is mainly mediated by cationic amino acid transporter (CAT) proteins. Ornithine 87-98 catalase Homo sapiens 155-158 23142579-3 2013 The hydrogel was synthesized by embedding the L-ornithine-degrading enzymes L-ornithine aminotransferase (OAT) and L-ornithine decarboxylase (ODC) into a polymer network. Ornithine 46-57 ornithine decarboxylase 1 Homo sapiens 115-140 23142579-3 2013 The hydrogel was synthesized by embedding the L-ornithine-degrading enzymes L-ornithine aminotransferase (OAT) and L-ornithine decarboxylase (ODC) into a polymer network. Ornithine 46-57 ornithine decarboxylase 1 Homo sapiens 142-145 22865229-2 2012 IL-4-induced activation of macrophages produced arginase-1, which converts arginine into ornithine, a precursor of polyamines and proline. Ornithine 89-98 interleukin 4 Mus musculus 0-4 23424623-3 2013 It has been reported that arginase II (ARG2), one of two ARGs, is aberrantly expressed in prostate cancer cells, which convert arginine into ornithine, resulting in a lack of arginine that weakens tumor-infiltrating lymphocytes and renders them dysfunctional. Ornithine 141-150 arginase 2 Homo sapiens 39-43 23917584-6 2013 Based on the investigation of the polyamine metabolite pathway, these data establish that the downstream metabolites of ornithine are increased, potentially implicating ornithine decarboxylase activity in AD pathology. Ornithine 120-129 ornithine decarboxylase 1 Homo sapiens 169-192 24244174-8 2013 Antibodies together with helminth larvae reprogrammed macrophages to express wound-healing associated genes, including Arginase-1, and the Arginase-1 product L-ornithine directly impaired larval motility. Ornithine 158-169 arginase, liver Mus musculus 139-149 22865229-2 2012 IL-4-induced activation of macrophages produced arginase-1, which converts arginine into ornithine, a precursor of polyamines and proline. Ornithine 89-98 arginase, liver Mus musculus 48-58 21975054-1 2012 Arginase 1 and arginase 2 catalyze the hydrolysis of arginine to ornithine and urea. Ornithine 65-74 arginase 1 Rattus norvegicus 0-10 21975054-1 2012 Arginase 1 and arginase 2 catalyze the hydrolysis of arginine to ornithine and urea. Ornithine 65-74 arginase 2 Rattus norvegicus 15-25 22411759-1 2012 BACKGROUND: The hemolytic products cell-free oxyhemoglobin (FHb) and arginase-1 reduce nitric oxide (NO) bioavailability by scavenging NO and by degrading the NO precursor arginine to ornithine, respectively. Ornithine 184-193 arginase 1 Homo sapiens 69-79 22170564-1 2012 Delta(1)-Pyrroline-5-carboxylate synthetase (P5CS) catalyzes the first two steps of ornithine/proline biosynthesis. Ornithine 84-93 aldehyde dehydrogenase 18 family member A1 Homo sapiens 0-43 22170564-1 2012 Delta(1)-Pyrroline-5-carboxylate synthetase (P5CS) catalyzes the first two steps of ornithine/proline biosynthesis. Ornithine 84-93 aldehyde dehydrogenase 18 family member A1 Homo sapiens 45-49 22170564-3 2012 Only one family exhibited metabolic changes consistent with P5CS deficiency (low proline/ornithine/citrulline/arginine; fasting hyperammonemia). Ornithine 89-98 aldehyde dehydrogenase 18 family member A1 Homo sapiens 60-64 22459664-2 2012 METHODS: Two BN-derivatives of the general structure [M-chelator]-(spacer)-BN(2-14)-NH(2), where M: (99m)Tc or (185/187)Re, chelator: Gly-Gly-Cys-, spacer: -(arginine)(3)-, M-BN-A; spacer: -(ornithine)(3)-, M-BN-O; have been prepared and evaluated as tumor imaging agents. Ornithine 191-200 gastrin releasing peptide Homo sapiens 13-15 22361732-12 2012 L-Orn or L-Pro restored restitution in cells treated with BEC or Arg1 shRNA, whereas the polyamine putrescine had no benefit. Ornithine 0-5 arginase, liver Mus musculus 65-69 22937649-8 2012 The increase of arginine, ornithine, and methionine contents promoted the activities of polyamines synthesis enzymes, which led to the significant increase of polyamines contents and the significant decrease of DAO and PAO activities. Ornithine 26-35 amine oxidase copper containing 1 Homo sapiens 211-214 22937649-8 2012 The increase of arginine, ornithine, and methionine contents promoted the activities of polyamines synthesis enzymes, which led to the significant increase of polyamines contents and the significant decrease of DAO and PAO activities. Ornithine 26-35 polyamine oxidase Homo sapiens 219-222 22387109-4 2012 There were significant differences in L-arginine, L-citrulline, L-ornithine, agmatine, putrescine, spermidine, spermine, and glutamate, but not GABA, in the CA1, CA2/3, and dentate gyrus sub-regions of the hippocampus and the prefrontal, entorhinal, perirhinal, and postrhinal cortices in 24 (aged) and 4 (young) months old rats in a region-specific manner. Ornithine 64-75 carbonic anhydrase 1 Rattus norvegicus 157-160 22262851-3 2012 Here we have characterized mutations of the proposed substrate binding site in the human ornithine carriers ORC1 and ORC2 by carrying out transport assays with a set of different substrates. Ornithine 89-98 origin recognition complex subunit 1 Homo sapiens 108-112 21567240-2 2012 Arginine production is controlled by argininosuccinate synthetase (ASS) and argininosuccinate lyase (ASL) which metabolize citrulline and aspartate to arginine and fumarate whereas arginine consumption is dependent on arginine:glycine amidinotransferase (GAT), which mediates creatine and ornithine synthesis. Ornithine 289-298 argininosuccinate lyase Homo sapiens 76-99 21567240-2 2012 Arginine production is controlled by argininosuccinate synthetase (ASS) and argininosuccinate lyase (ASL) which metabolize citrulline and aspartate to arginine and fumarate whereas arginine consumption is dependent on arginine:glycine amidinotransferase (GAT), which mediates creatine and ornithine synthesis. Ornithine 289-298 argininosuccinate lyase Homo sapiens 101-104 22416259-2 2012 This Th2 cytokine induces Arg1 activity, which converts arginine into ornithine, and ornithine can be decarboxylated by ODC to produce putrescine, which is further converted into spermidine and spermine. Ornithine 70-79 arginase 1 Homo sapiens 26-30 22416259-2 2012 This Th2 cytokine induces Arg1 activity, which converts arginine into ornithine, and ornithine can be decarboxylated by ODC to produce putrescine, which is further converted into spermidine and spermine. Ornithine 85-94 ornithine decarboxylase 1 Homo sapiens 120-123 22262851-3 2012 Here we have characterized mutations of the proposed substrate binding site in the human ornithine carriers ORC1 and ORC2 by carrying out transport assays with a set of different substrates. Ornithine 89-98 origin recognition complex subunit 2 Homo sapiens 117-121 22264771-9 2012 Among the metabolites that contributed most to the CSF signature were arginine, lysine, ornithine, serine, threonine and pyroglutamic acid, all found to be reduced in patients carrying a D90A SOD1 mutation. Ornithine 88-97 superoxide dismutase 1 Homo sapiens 192-196 22033378-6 2012 L-Ornithine is substrate of ornithine decarboxylase (ODC) - one of the key enzymes of polyamine biosynthesis and a validated target for therapeutic intervention - producing putrescine, which in turn is converted to spermidine by condensing with an aminopropyl group from decarboxylated S-adenosylmethionine. Ornithine 0-11 ornithine decarboxylase 1 Homo sapiens 28-51 22188168-1 2012 Arabidopsis possesses two arginase-encoding genes, ARGAH1 and ARGAH2, catalysing the catabolism of arginine into ornithine and urea. Ornithine 113-122 arginase Arabidopsis thaliana 51-57 22188168-1 2012 Arabidopsis possesses two arginase-encoding genes, ARGAH1 and ARGAH2, catalysing the catabolism of arginine into ornithine and urea. Ornithine 113-122 Arginase/deacetylase superfamily protein Arabidopsis thaliana 62-68 21899873-1 2012 Pyridoxal 5"-phosphate (PLP), in the active site of ornithine 4,5-aminomutase (OAM), forms a Schiff base with N(delta) of the d-ornithine side chain and facilitates interconversion of the amino acid to (2R, 4S) 2,4-diaminopentanoic acid via a radical-based mechanism. Ornithine 52-61 pyridoxal phosphatase Homo sapiens 24-27 21899873-1 2012 Pyridoxal 5"-phosphate (PLP), in the active site of ornithine 4,5-aminomutase (OAM), forms a Schiff base with N(delta) of the d-ornithine side chain and facilitates interconversion of the amino acid to (2R, 4S) 2,4-diaminopentanoic acid via a radical-based mechanism. Ornithine 126-137 pyridoxal phosphatase Homo sapiens 24-27 22033378-6 2012 L-Ornithine is substrate of ornithine decarboxylase (ODC) - one of the key enzymes of polyamine biosynthesis and a validated target for therapeutic intervention - producing putrescine, which in turn is converted to spermidine by condensing with an aminopropyl group from decarboxylated S-adenosylmethionine. Ornithine 0-11 ornithine decarboxylase 1 Homo sapiens 53-56 23132315-7 2012 The present results suggest that the treatment of young rats with ornithine is likely to increase the concentration of plasma GH and the rate of protein synthesis in the tissues, and that RNA activity is at least partly related to the fractional rate of tissue protein synthesis. Ornithine 66-75 gonadotropin releasing hormone receptor Rattus norvegicus 126-128 23132315-3 2012 The plasma concentration of growth hormone (GH) was the highest in rats fed 0.5 and 0.7% ornithine added to the 20% casein diet. Ornithine 89-98 gonadotropin releasing hormone receptor Rattus norvegicus 28-42 23327970-1 2012 The purpose of this study was to determine whether the regulation of brain protein synthesis is mediated through changes in the plasma concentration of growth hormone (GH) when dietary ornithine treatment is manipulated in the hypophysectomized or sham-operated aged rats. Ornithine 185-194 gonadotropin releasing hormone receptor Rattus norvegicus 152-166 23132315-3 2012 The plasma concentration of growth hormone (GH) was the highest in rats fed 0.5 and 0.7% ornithine added to the 20% casein diet. Ornithine 89-98 gonadotropin releasing hormone receptor Rattus norvegicus 44-46 23327970-1 2012 The purpose of this study was to determine whether the regulation of brain protein synthesis is mediated through changes in the plasma concentration of growth hormone (GH) when dietary ornithine treatment is manipulated in the hypophysectomized or sham-operated aged rats. Ornithine 185-194 gonadotropin releasing hormone receptor Rattus norvegicus 168-170 23327970-3 2012 The concentrations of plasma GH and fractional rates of protein synthesis in the brains increased significantly with the 20% casein+0.7% ornithine compared with the 20% casein diet alone in the sham-operated rats. Ornithine 137-146 gonadotropin releasing hormone receptor Rattus norvegicus 29-31 23327970-7 2012 The results suggest that the treatment with ornithine is likely to increase the concentration of GH and the rate of brain protein synthesis in the sham-operated rats only, not in the hypophysectomized rats, and that the ornithine-induced increase in the concentration of GH may be primarily responsible for changes in the brain protein synthesis. Ornithine 44-53 gonadotropin releasing hormone receptor Rattus norvegicus 97-99 23327970-7 2012 The results suggest that the treatment with ornithine is likely to increase the concentration of GH and the rate of brain protein synthesis in the sham-operated rats only, not in the hypophysectomized rats, and that the ornithine-induced increase in the concentration of GH may be primarily responsible for changes in the brain protein synthesis. Ornithine 44-53 gonadotropin releasing hormone receptor Rattus norvegicus 271-273 23327970-7 2012 The results suggest that the treatment with ornithine is likely to increase the concentration of GH and the rate of brain protein synthesis in the sham-operated rats only, not in the hypophysectomized rats, and that the ornithine-induced increase in the concentration of GH may be primarily responsible for changes in the brain protein synthesis. Ornithine 220-229 gonadotropin releasing hormone receptor Rattus norvegicus 271-273 22022700-2 2011 The present work deals with diamine oxidase immobilized on iron oxide nanoparticles for quantifying the amount of putrescine produced, by the decarboxylation of ornithine, which is converted into hydrogen peroxide by the enzyme diamine oxidase (DAO). Ornithine 161-170 amine oxidase copper containing 1 Homo sapiens 28-43 23024808-3 2012 Proline is synthesized from either glutamate or ornithine; both are converted to pyrroline-5-carboxylate (P5C), and then to proline via pyrroline-5-carboxylate reductases (PYCRs). Ornithine 48-57 pyrroline-5-carboxylate reductase 1 Homo sapiens 106-109 23024808-3 2012 Proline is synthesized from either glutamate or ornithine; both are converted to pyrroline-5-carboxylate (P5C), and then to proline via pyrroline-5-carboxylate reductases (PYCRs). Ornithine 48-57 pyrroline-5-carboxylate reductase 1 Homo sapiens 81-104 21945700-1 2012 Arginase (EC 3.5.3.1; L-arginine amidinohydrolase) is a key enzyme of the urea cycle that catalyses the conversion of arginine to ornithine and urea, which is the final cytosolic reaction of urea formation in the mammalian liver. Ornithine 130-139 arginase 2 Homo sapiens 22-49 23430880-1 2012 The Hyperornithinemia-Hyperammonemia-Homocitrullinuria (HHH) syndrome is a disorder of the urea cycle and ornithine degradation pathway caused by mutations in the mitochondrial ornithine transporter, ORNT1 (SLC25A15). Ornithine 9-18 solute carrier family 25 member 15 Homo sapiens 200-205 23430880-1 2012 The Hyperornithinemia-Hyperammonemia-Homocitrullinuria (HHH) syndrome is a disorder of the urea cycle and ornithine degradation pathway caused by mutations in the mitochondrial ornithine transporter, ORNT1 (SLC25A15). Ornithine 9-18 solute carrier family 25 member 15 Homo sapiens 207-215 22022700-2 2011 The present work deals with diamine oxidase immobilized on iron oxide nanoparticles for quantifying the amount of putrescine produced, by the decarboxylation of ornithine, which is converted into hydrogen peroxide by the enzyme diamine oxidase (DAO). Ornithine 161-170 amine oxidase copper containing 1 Homo sapiens 228-243 22022700-2 2011 The present work deals with diamine oxidase immobilized on iron oxide nanoparticles for quantifying the amount of putrescine produced, by the decarboxylation of ornithine, which is converted into hydrogen peroxide by the enzyme diamine oxidase (DAO). Ornithine 161-170 amine oxidase copper containing 1 Homo sapiens 245-248 21917546-3 2011 Stable isotope labeling experiments show that, after MeJA elicitation, Arg, Pro, and Glu are converted to Orn, which is acetylated by NATA1 to produce N(delta)-acetylornithine. Ornithine 106-109 Acyl-CoA N-acyltransferases (NAT) superfamily protein Arabidopsis thaliana 134-139 21736537-3 2011 The syndrome results from a deficiency of the mitochondrial enzyme OTC which catalyses the conversion of ornithine and carbamoyl phosphate to citrulline. Ornithine 105-114 ornithine transcarbamylase Homo sapiens 67-70 21807072-6 2011 Abeta(25-35) resulted in significantly decreased nitric oxide synthase (NOS) activity and endothelial NOS protein expression, but increased arginase activity, arginase II protein expression, and ornithine and putrescine levels, in hippocampal CA2/3. Ornithine 195-204 amyloid beta precursor protein Rattus norvegicus 0-5 21650455-8 2011 In summary, a biosynthetic route for the generation of delta-N-acetyl-delta-N-hydroxy-L-ornithine starting from L-ornithine has been established in vitro by tandem action of the FAD-dependent monooxygenase EtcB and the bifunctional malonyl-CoA decarboxylase/acetyltransferase Mcd. Ornithine 86-97 malonyl-CoA decarboxylase Homo sapiens 232-257 21512157-6 2011 Under conditions of glutamine depletion, supplementation of ornithine or polyamines restored the heat-induced expression of Hsp70 and Hsp25. Ornithine 60-69 heat shock protein family A (Hsp70) member 1B Rattus norvegicus 124-129 21512157-6 2011 Under conditions of glutamine depletion, supplementation of ornithine or polyamines restored the heat-induced expression of Hsp70 and Hsp25. Ornithine 60-69 heat shock protein family B (small) member 1 Rattus norvegicus 134-139 21585399-3 2011 AAMs exert their activity in part via the enzyme arginase-1 (Arg1), which hydrolyses L-arginine into urea and ornithine, and can supply precursor substrate for proline and polyamine production. Ornithine 110-119 arginase, liver Mus musculus 61-65 21136528-1 2011 Arginase (EC 3.5.3.1) catalyzes the hydrolysis of arginine to ornithine and urea. Ornithine 62-71 arginase Bombyx mori 0-8 21232776-1 2011 The pyrrolidine ring of nicotine is derived from the diamine putrescine, which can be synthesized either directly from ornithine via the action of ODC, or from arginine via a three enzymatic step process, initiated by ADC. Ornithine 119-128 ornithine decarboxylase Nicotiana tabacum 147-150 20811048-1 2011 PURPOSE: The authors previously reported ornithine cytotoxicity in ornithine-delta-aminotransferase (OAT)-deficient human retinal pigment epithelial (RPE) cells as an in vitro model of gyrate atrophy of the choroid and retina (GA). Ornithine 41-50 ornithine aminotransferase Homo sapiens 67-99 20811048-6 2011 RESULTS: NO production in 5-FMO-treated hTERT-RPE cells was increased by ornithine, and the NO donors S-nitroso-N-acetyl-DL-penicillamine (SNAP) and S-nitrosoglutathione induced cytotoxicity. Ornithine 73-82 telomerase reverse transcriptase Homo sapiens 40-45 21310339-1 2011 Argininemia is caused by a deficiency of arginase 1, which catalyzes the final step in the urea cycle, i.e., the cytosolic hydrolysis of arginine to ornithine and urea. Ornithine 149-158 arginase 1 Homo sapiens 41-51 20512387-2 2011 The PAs are synthesized by a metabolic process which involves arginase (ARG), which catalyzes the enzymatic hydrolysis of L-arginine (L-Arg) to L-ornithine and urea, and ornithine decarboxylase (ODC), which catalyzes the enzymatic decarboxylation of L-ornithine in putrescine. Ornithine 250-261 ornithine decarboxylase 1 Homo sapiens 170-193 20831369-2 2011 Ornithine decarboxylase (ODC) catalyzes the conversion of ornithine to polyamines. Ornithine 58-67 ornithine decarboxylase 1 Homo sapiens 0-23 20831369-2 2011 Ornithine decarboxylase (ODC) catalyzes the conversion of ornithine to polyamines. Ornithine 58-67 ornithine decarboxylase 1 Homo sapiens 25-28 21265888-6 2011 Map-based cloning showed that the VEN3 and VEN6 genes encode subunits of Arabidopsis carbamoyl phosphate synthetase (CPS), which is assumed to be required for the conversion of ornithine into citrulline in arginine biosynthesis. Ornithine 177-186 carbamoyl phosphate synthetase B Arabidopsis thaliana 34-38 21265888-6 2011 Map-based cloning showed that the VEN3 and VEN6 genes encode subunits of Arabidopsis carbamoyl phosphate synthetase (CPS), which is assumed to be required for the conversion of ornithine into citrulline in arginine biosynthesis. Ornithine 177-186 carbamoyl phosphate synthetase A Arabidopsis thaliana 43-47 21265888-4 2011 Taken together, these results indicate that ven3 and ven6 mutants experience a blockage of the conversion of ornithine into citrulline in the arginine pathway. Ornithine 109-118 carbamoyl phosphate synthetase B Arabidopsis thaliana 44-48 21904558-9 2011 The arginine 14 of HNP-1 modified by the ADP-ribose is in some cases processed into ornithine, perhaps representing a different modality in the regulation of HNP-1 activities. Ornithine 84-93 HNP1 Homo sapiens 19-24 21265888-4 2011 Taken together, these results indicate that ven3 and ven6 mutants experience a blockage of the conversion of ornithine into citrulline in the arginine pathway. Ornithine 109-118 carbamoyl phosphate synthetase A Arabidopsis thaliana 53-57 21056090-0 2011 L-ornithine attenuates corticotropin-releasing factor-induced stress responses acting at GABAA receptors in neonatal chicks. Ornithine 0-11 corticotropin releasing hormone Homo sapiens 23-53 21904558-9 2011 The arginine 14 of HNP-1 modified by the ADP-ribose is in some cases processed into ornithine, perhaps representing a different modality in the regulation of HNP-1 activities. Ornithine 84-93 HNP1 Homo sapiens 158-163 21318879-8 2011 AzI is highly homologous to ODC, but it lacks ornithine decarboxylating activity. Ornithine 46-55 antizyme inhibitor 1 Homo sapiens 0-3 20531247-7 2010 RESULTS: Injection of l-ornithine paradoxically induced pancreatic spermidine catabolism, possibly via activation of SSAT, after (>6 hours) appearance of the first histological signs of acute pancreatitis. Ornithine 22-33 spermidine/spermine N1-acetyl transferase 1 Rattus norvegicus 117-121 20558222-8 2010 This process was inhibited by substrates of cationic amino acid transporter (CAT)s, such as L-arginine, L-lysine, and L-ornithine. Ornithine 120-129 catalase Rattus norvegicus 77-80 20653567-5 2010 However, the ability to utilize exogenous Arg precursors (ornithine and citrulline) for growth in Arg-deficient medium strongly correlated with expression of the corresponding enzymes, OTC and ASS. Ornithine 58-67 argininosuccinate synthase 1 Homo sapiens 193-196 20688526-1 2010 The formation of c(1) ions during collision-induced fragmentation of peptides with asparagine, ornithine, or glutamine at the N-terminal position 2 has been studied. Ornithine 95-104 heterogeneous nuclear ribonucleoprotein C Homo sapiens 17-21 20688526-8 2010 Additional evidence is obtained by investigation of peptides with ornithine in N-terminal position 2, which in general exhibit c(1) ion intensities intermediate between the asparagine- and glutamine-containing species. Ornithine 66-75 heterogeneous nuclear ribonucleoprotein C Homo sapiens 127-131 20661013-3 2010 Arginase-1 (Arg-1) is a binuclear manganese metalloenzyme that catalyzes the hydrolysis of arginine to ornithine and urea. Ornithine 103-112 arginase 1 Homo sapiens 0-10 20673832-1 2010 Ornithine delta-aminotransferase (OAT) of the malaria parasite Plasmodium falciparum catalyzes the reversible conversion of ornithine into glutamate-5-semialdehyde and glutamate and is-in contrast to its human counterpart-activated by thioredoxin (Trx) by a factor of 10. Ornithine 124-133 thioredoxin Homo sapiens 235-246 20673832-1 2010 Ornithine delta-aminotransferase (OAT) of the malaria parasite Plasmodium falciparum catalyzes the reversible conversion of ornithine into glutamate-5-semialdehyde and glutamate and is-in contrast to its human counterpart-activated by thioredoxin (Trx) by a factor of 10. Ornithine 124-133 thioredoxin Homo sapiens 248-251 20673832-10 2010 Plasmodium might require a tight Trx-mediated control of OAT activity for coordinating ornithine homeostasis, polyamine synthesis, proline synthesis, and mitotic cell division. Ornithine 87-96 thioredoxin Homo sapiens 33-36 20661013-3 2010 Arginase-1 (Arg-1) is a binuclear manganese metalloenzyme that catalyzes the hydrolysis of arginine to ornithine and urea. Ornithine 103-112 arginase 1 Homo sapiens 12-17 20576117-1 2010 BACKGROUND: Arginine is an amino acid that serves as a substrate for the enzymes nitric oxide synthase (NOS) and arginase, leading to synthesis of NO and ornithine, respectively. Ornithine 154-163 nitric oxide synthase 1, neuronal Mus musculus 81-102 20381578-1 2010 Ornithine-delta-aminotransferase (OAT, EC 2.6.1.13) catalyzes the transamination of L-ornithine to L-glutamate-gamma-semialdehyde. Ornithine 84-95 ornithine aminotransferase Homo sapiens 0-32 20381578-1 2010 Ornithine-delta-aminotransferase (OAT, EC 2.6.1.13) catalyzes the transamination of L-ornithine to L-glutamate-gamma-semialdehyde. Ornithine 84-95 ornithine aminotransferase Homo sapiens 34-37 20430034-7 2010 It is concluded that the activation of PKCalpha stimulates arginine entry in human endothelial cells and shifts the metabolism of the cationic amino acid from NO synthesis to arginase-dependent production of ornithine and urea. Ornithine 208-217 protein kinase C alpha Homo sapiens 39-47 20172963-3 2010 We investigated the biological role of the basic amino acid carrier Basic Amino Acid Carrier2 (BAC2) from Arabidopsis that is structurally and functionally similar to ARG11, a yeast ornithine and arginine carrier, and to Arabidopsis BAC1. Ornithine 182-191 Mitochondrial substrate carrier family protein Arabidopsis thaliana 68-93 20300016-1 2010 This placebo-controlled double-blind study was designed to investigate the effect of arginine and ornithine (arg and orn) supplementation during 3-week heavy-resistance training on serum growth hormone/insulin-like growth factor-1/insulin-like growth factor-binding protein 3 (GH/IGF-1/IGFBP-3), testosterone, cortisol, and insulin levels in experienced strength-trained athletes. Ornithine 98-107 insulin Homo sapiens 231-238 20300016-7 2010 Because there was no between-group difference in the remaining hormone levels, it appears that the GH/IGF-1/IGFBP-3 complex may be the major player in muscle tissue response to short-term resistance training after arg and orn supplementation. Ornithine 222-225 insulin like growth factor 1 Homo sapiens 102-107 20300016-7 2010 Because there was no between-group difference in the remaining hormone levels, it appears that the GH/IGF-1/IGFBP-3 complex may be the major player in muscle tissue response to short-term resistance training after arg and orn supplementation. Ornithine 222-225 insulin like growth factor binding protein 3 Homo sapiens 108-115 20300016-0 2010 Arginine and ornithine supplementation increases growth hormone and insulin-like growth factor-1 serum levels after heavy-resistance exercise in strength-trained athletes. Ornithine 13-22 insulin Homo sapiens 68-75 20300016-1 2010 This placebo-controlled double-blind study was designed to investigate the effect of arginine and ornithine (arg and orn) supplementation during 3-week heavy-resistance training on serum growth hormone/insulin-like growth factor-1/insulin-like growth factor-binding protein 3 (GH/IGF-1/IGFBP-3), testosterone, cortisol, and insulin levels in experienced strength-trained athletes. Ornithine 98-107 insulin Homo sapiens 202-209 20300016-1 2010 This placebo-controlled double-blind study was designed to investigate the effect of arginine and ornithine (arg and orn) supplementation during 3-week heavy-resistance training on serum growth hormone/insulin-like growth factor-1/insulin-like growth factor-binding protein 3 (GH/IGF-1/IGFBP-3), testosterone, cortisol, and insulin levels in experienced strength-trained athletes. Ornithine 98-107 insulin Homo sapiens 231-238 20172963-3 2010 We investigated the biological role of the basic amino acid carrier Basic Amino Acid Carrier2 (BAC2) from Arabidopsis that is structurally and functionally similar to ARG11, a yeast ornithine and arginine carrier, and to Arabidopsis BAC1. Ornithine 182-191 Mitochondrial substrate carrier family protein Arabidopsis thaliana 95-99 19283444-3 2010 The reported results demonstrate that the functionalization of L-ornithine side-chain with a neutral sulfamoyl group can generate an arginine bioisostere which can be used for the synthesis of prototypes of a new class of human thrombin inhibitors. Ornithine 63-74 coagulation factor II, thrombin Homo sapiens 228-236 20853600-1 2010 Arginase (L-arginine amidinohydrolase, EC 3.5.3.1) is the key enzyme in urea synthesis, hydrolyzing L-arginine into L-ornithine and urea. Ornithine 116-127 arginase 2 Homo sapiens 0-8 20459380-1 2010 Ornithine transcarbamylase (OTC; EC 2.1.3.3) is a one-carbon-unit transferring enzyme that synthesizes citrulline using ornithine and carbamoylphosphate as substrates. Ornithine 120-129 ornithine transcarbamylase Homo sapiens 0-26 20459380-1 2010 Ornithine transcarbamylase (OTC; EC 2.1.3.3) is a one-carbon-unit transferring enzyme that synthesizes citrulline using ornithine and carbamoylphosphate as substrates. Ornithine 120-129 ornithine transcarbamylase Homo sapiens 28-31 21099300-7 2010 Of these, adenylate kinase 3 (AK3) is a mitochondrial enzyme which acts on GTP, and ornithine aminotransferase (OAT) lies on the pathway converting glutamate to ornithine. Ornithine 84-93 adenylate kinase 3 Mus musculus 10-28 21099300-7 2010 Of these, adenylate kinase 3 (AK3) is a mitochondrial enzyme which acts on GTP, and ornithine aminotransferase (OAT) lies on the pathway converting glutamate to ornithine. Ornithine 84-93 adenylate kinase 3 Mus musculus 30-33 20853600-1 2010 Arginase (L-arginine amidinohydrolase, EC 3.5.3.1) is the key enzyme in urea synthesis, hydrolyzing L-arginine into L-ornithine and urea. Ornithine 116-127 arginase 2 Homo sapiens 10-37 19897717-0 2009 ADP-ribosylation of human defensin HNP-1 results in the replacement of the modified arginine with the noncoded amino acid ornithine. Ornithine 122-131 HNP1 Homo sapiens 35-40 19897717-6 2009 In the present study, we observed that ART1-catalyzed ADP-ribosylation of HNP-1 in vitro generated a product with ADP-ribose on arginine 24, and ornithine replacing arginine at position 14. Ornithine 145-154 ADP-ribosyltransferase 1 Homo sapiens 39-43 19635796-1 2009 Ornithine decarboxylase (ODC) is the first enzyme involved in polyamine biosynthesis, and it catalyzes the decarboxylation of ornithine to putrescine. Ornithine 126-135 ornithine decarboxylase 1 Homo sapiens 0-23 19897717-6 2009 In the present study, we observed that ART1-catalyzed ADP-ribosylation of HNP-1 in vitro generated a product with ADP-ribose on arginine 24, and ornithine replacing arginine at position 14. Ornithine 145-154 HNP1 Homo sapiens 74-79 19897717-8 2009 On incubation of di- or mono-ADP-ribosyl-HNP-1 at 37 degrees C, ADP-ribosylarginine was partially replaced by ornithine, whereas ornithine was not detected by amino acid analysis and mass spectrometry of unmodified HNP-1 incubated under the same conditions. Ornithine 110-119 HNP1 Homo sapiens 41-46 19897717-8 2009 On incubation of di- or mono-ADP-ribosyl-HNP-1 at 37 degrees C, ADP-ribosylarginine was partially replaced by ornithine, whereas ornithine was not detected by amino acid analysis and mass spectrometry of unmodified HNP-1 incubated under the same conditions. Ornithine 129-138 HNP1 Homo sapiens 41-46 19754428-6 2009 The location of the NAG site is identical to that of the weak bacterial CPS activator IMP (inosine monophosphate) in Escherichia coli CPS, indicating a common origin for these sites and excluding any relatedness to the binding site of the other bacterial CPS activator, ornithine. Ornithine 270-279 N-acetyl-alpha-glucosaminidase Homo sapiens 20-23 19836834-2 2009 Here we report that the calcimimetic Calindol and the calcilytic NPS2143 antagonize increases in inositol phosphate elicited by L-ornithine-induced activation of mouse GPRC6A after transient coexpression with Galpha(qG66D) in HEK293 cells. Ornithine 128-139 G protein-coupled receptor, family C, group 6, member A Mus musculus 168-174 19836834-6 2009 The mutations F666A(3.32), F670A(3.36), W797A(6.48) caused a loss of L-ornithine ability to activate GPRC6A mutants. Ornithine 69-80 G protein-coupled receptor, family C, group 6, member A Mus musculus 101-107 20095969-11 2009 AzI is highly homologous with ODC, but it lacks ornithine-decarboxylating activity. Ornithine 48-57 antizyme inhibitor 1 Homo sapiens 0-3 19635796-1 2009 Ornithine decarboxylase (ODC) is the first enzyme involved in polyamine biosynthesis, and it catalyzes the decarboxylation of ornithine to putrescine. Ornithine 126-135 ornithine decarboxylase 1 Homo sapiens 25-28 19409412-1 2009 In the present article the influence of salts and additives, such as trehalose, NaCl, ornithine, sodium phosphate and ammonium sulphate, on ornithine carbamoyltransferase (OCTase) is investigated in order to study the OCTase stabilization process as a function of solutes and to point out the fundamental role played by an enhancement of hydrophobic interactions. Ornithine 86-95 ornithine transcarbamylase Homo sapiens 140-170 19625684-6 2009 Ornithine aminotransferase, the regulated enzyme of arginine and ornithine catabolism, is restricted to the same zone 3 cells as glutamine synthetase, whereas the urea cycle is found in the remaining hepatocytes. Ornithine 65-74 ornithine aminotransferase Homo sapiens 0-26 19409412-1 2009 In the present article the influence of salts and additives, such as trehalose, NaCl, ornithine, sodium phosphate and ammonium sulphate, on ornithine carbamoyltransferase (OCTase) is investigated in order to study the OCTase stabilization process as a function of solutes and to point out the fundamental role played by an enhancement of hydrophobic interactions. Ornithine 86-95 ornithine transcarbamylase Homo sapiens 172-178 19554542-2 2009 We hypothesized that a combination of L-ornithine and phenylacetate (OP) would synergistically reduce toxic levels of ammonia by (1) L-ornithine increasing glutamine production (ammonia removal) through muscle glutamine synthetase and (2) phenylacetate conjugating with the ornithine-derived glutamine to form phenylacetylglutamine, which is excreted into the urine. Ornithine 38-49 glutamate-ammonia ligase Sus scrofa 210-230 19173225-1 2009 L-citrulline, L-ornithine, and agmatine are the metabolites of L-arginine by nitric oxide synthase (NOS), arginase, and arginine decarboxylase (ADC), respectively. Ornithine 14-25 antizyme inhibitor 2 Rattus norvegicus 120-142 19173225-1 2009 L-citrulline, L-ornithine, and agmatine are the metabolites of L-arginine by nitric oxide synthase (NOS), arginase, and arginine decarboxylase (ADC), respectively. Ornithine 14-25 antizyme inhibitor 2 Rattus norvegicus 144-147 19554542-2 2009 We hypothesized that a combination of L-ornithine and phenylacetate (OP) would synergistically reduce toxic levels of ammonia by (1) L-ornithine increasing glutamine production (ammonia removal) through muscle glutamine synthetase and (2) phenylacetate conjugating with the ornithine-derived glutamine to form phenylacetylglutamine, which is excreted into the urine. Ornithine 40-49 glutamate-ammonia ligase Sus scrofa 210-230 19287344-1 2009 The hyperornithinemia-hyperammonemia-homocitrullinuria (HHH) syndrome is a disorder of the urea cycle (UCD) and ornithine degradation pathway caused by mutations in the mitochondrial ornithine transporter (ORNT1). Ornithine 9-18 solute carrier family 25 member 15 Homo sapiens 206-211 19287344-4 2009 Here, we report that both the human and mouse SLC25A29, previously identified as mitochondrial carnitine/acyl-carnitine transporter-like, when overexpressed transiently also rescues the impaired ornithine transport in cultured HHH fibroblasts. Ornithine 195-204 solute carrier family 25 (mitochondrial carrier, palmitoylcarnitine transporter), member 29 Mus musculus 46-54 19287344-6 2009 These results suggest a potential physiologic role for the SLC25A29 transporter in the oxidation of fatty acids, ornithine degradation pathway, and possibly the urea cycle. Ornithine 113-122 solute carrier family 25 member 29 Homo sapiens 59-67 19345633-1 2009 AIMS: Ornithine delta-aminotransferase (OAT) deficiency causes gyrate atrophy (GA) of the retina, as a consequence of high plasma ornithine concentrations. Ornithine 130-139 ornithine aminotransferase Homo sapiens 6-38 19409905-1 2009 N-Acetyl-L-glutamate kinase (NAGK) catalyzes the first committed step in arginine biosynthesis in organisms that perform the cyclic pathway of ornithine synthesis. Ornithine 143-152 N-acetyl-l-glutamate kinase Arabidopsis thaliana 29-33 19440938-4 2009 Cell ODC activities were assayed using 14CO2 generation from 14C-labeled L-ornithine. Ornithine 73-84 ornithine decarboxylase, structural 1 Mus musculus 5-8 19440939-6 2009 Cell ODC activities were assayed using 14CO2 generation from 14C-labeled L-ornithine. Ornithine 73-84 ornithine decarboxylase 1 Homo sapiens 5-8 19440939-8 2009 After cell lysis, ODC activity was determined using 14C-labeled L-ornithine. Ornithine 64-75 ornithine decarboxylase 1 Homo sapiens 18-21 19440939-9 2009 ODC activity was estimated by the 14CO2 generated from 14C-labeled L-ornithine, as generated d.p.m. Ornithine 67-78 ornithine decarboxylase 1 Homo sapiens 0-3 19105697-4 2009 OAT2 is a member of the N-terminal nucleophile (Ntn) hydrolase enzyme superfamily and catalyzes the reversible transfer of an acetyl group between the alpha-amino groups of ornithine and glutamate in a mechanism proposed to involve an acyl-enzyme complex. Ornithine 173-182 solute carrier family 22 member 7 Homo sapiens 0-4 19318352-5 2009 Biochemical characterizations revealed that OTC Lys88 acetylation decreases the affinity for carbamoyl phosphate, one of the two OTC substrates, and the maximum velocity, whereas the K(m) for ornithine, the other OTC substrate, is not affected. Ornithine 192-201 ornithine transcarbamylase Homo sapiens 44-47 18368465-1 2009 Polyamines are important for cell growth and proliferation and they are formed from arginine and ornithine via arginase and ornithine decarboxylase (ODC). Ornithine 97-106 ornithine decarboxylase 1 Rattus norvegicus 124-147 18368465-1 2009 Polyamines are important for cell growth and proliferation and they are formed from arginine and ornithine via arginase and ornithine decarboxylase (ODC). Ornithine 97-106 ornithine decarboxylase 1 Rattus norvegicus 149-152 18680626-2 2009 OAT controls the interconversion of ornithine into glutamate semi-aldehyde, and is therefore involved in the metabolism of arginine and glutamine which play a major role in N homeostasis. Ornithine 36-45 ornithine aminotransferase Mus musculus 0-3 18680626-8 2009 OAT overexpression decreased plasma and liver ornithine concentrations but did not affect glutamine or arginine homeostasis. Ornithine 46-55 ornithine aminotransferase Mus musculus 0-3 18680626-9 2009 There was an inverse relationship between ornithine levels and OAT activity. Ornithine 42-51 ornithine aminotransferase Mus musculus 63-66 19138872-1 2009 Ornithine transcarbamylase (OTC) deficiency is an X-linked inborn error of metabolism characterized by impaired synthesis of citrulline from carbamylphosphate and ornithine. Ornithine 163-172 ornithine transcarbamylase Homo sapiens 0-26 19138872-1 2009 Ornithine transcarbamylase (OTC) deficiency is an X-linked inborn error of metabolism characterized by impaired synthesis of citrulline from carbamylphosphate and ornithine. Ornithine 163-172 ornithine transcarbamylase Homo sapiens 28-31 18827361-1 2008 Bacterial membrane constituents, such as Ornithine-containing lipid (OL) and the lipid A portion of lipopolysaccharide, trigger various immune responses through recognition by Toll-like receptor (TLR) 4. Ornithine 41-50 toll like receptor 4 Homo sapiens 196-199 18978333-1 2008 BACKGROUND: Hyperornithinaemia-hyperammonaemia-homocitrullinuria (HHH) syndrome (OMIM 238970) is caused by impaired ornithine transport across the inner mitochondrial membrane due to mutations in SLC25A15. Ornithine 116-125 solute carrier family 25 member 15 Homo sapiens 196-204 19636440-9 2009 Since arginase AI is a key enzyme of the urea cycle, whereas arginase AII most probably takes part in the biosynthesis of ornithine and polyamines, the defective ammonia inactivation and increased collagen biosynthesis observed in cirrhotic liver may be related to the changes in arginase AI and AII levels, respectively. Ornithine 122-131 NLR family pyrin domain containing 3 Homo sapiens 70-73 18401542-1 2008 Mammalian Delta(1)-pyrroline-5-carboxylate synthase (P5CS) is a bifunctional ATP- and NAD(P)H-dependent mitochondrial enzyme that catalyzes the coupled phosphorylation and reduction-conversion of L: -glutamate to P5C, a pivotal step in the biosynthesis of L: -proline, L: -ornithine and L: -arginine. Ornithine 269-282 aldehyde dehydrogenase 18 family member A1 Homo sapiens 10-51 18401542-1 2008 Mammalian Delta(1)-pyrroline-5-carboxylate synthase (P5CS) is a bifunctional ATP- and NAD(P)H-dependent mitochondrial enzyme that catalyzes the coupled phosphorylation and reduction-conversion of L: -glutamate to P5C, a pivotal step in the biosynthesis of L: -proline, L: -ornithine and L: -arginine. Ornithine 269-282 aldehyde dehydrogenase 18 family member A1 Homo sapiens 53-57 18401542-1 2008 Mammalian Delta(1)-pyrroline-5-carboxylate synthase (P5CS) is a bifunctional ATP- and NAD(P)H-dependent mitochondrial enzyme that catalyzes the coupled phosphorylation and reduction-conversion of L: -glutamate to P5C, a pivotal step in the biosynthesis of L: -proline, L: -ornithine and L: -arginine. Ornithine 269-282 pyrroline-5-carboxylate reductase 1 Homo sapiens 53-56 18401542-3 2008 The short form (P5CS.short) is highly expressed in the gut and is inhibited by ornithine. Ornithine 79-88 aldehyde dehydrogenase 18 family member A1 Homo sapiens 16-20 18280134-3 2008 All-transretinoic acid (RA), an active metabolite of vitamin A, regulates the activity of several metabolic enzymes related to OAT, including ornithine decarboxylase and arginase, which may influence the function of OAT through effects on substrate (ornithine) availability. Ornithine 142-151 ornithine aminotransferase Homo sapiens 127-130 18759245-9 2008 Arginase competes with iNOS for arginine, catalyzing its hydrolysis to ornithine and urea. Ornithine 71-80 nitric oxide synthase 2 Homo sapiens 23-27 18478038-8 2008 In an in vivo assay of flux through this metabolic pathway using dermal fibroblasts obtained from an affected individual, proline and ornithine biosynthetic activity of P5CS was not affected by the H784Y substitution. Ornithine 134-143 aldehyde dehydrogenase 18 family member A1 Homo sapiens 169-173 18280134-3 2008 All-transretinoic acid (RA), an active metabolite of vitamin A, regulates the activity of several metabolic enzymes related to OAT, including ornithine decarboxylase and arginase, which may influence the function of OAT through effects on substrate (ornithine) availability. Ornithine 142-151 ornithine aminotransferase Homo sapiens 216-219 18280134-6 2008 Treatment with RA induced increases in OAT gene expression and enzymatic activity, which resulted in decreased intracellular concentrations of ornithine and polyamines (putrescine, spermidine and spermine) in a dose-dependent manner. Ornithine 143-152 ornithine aminotransferase Homo sapiens 39-42 18280134-9 2008 We conclude that exposure of Caco-2 cells to RA induces OAT expression for increasing ornithine catabolism. Ornithine 86-95 ornithine aminotransferase Homo sapiens 56-59 18221783-4 2008 In whole vessel segments, the GPRC6A activators, 300 microM l-ornithine and 100 microM Al(3+), induced endothelium-dependent myocyte hyperpolarizations sensitive to 10 microM TRAM-34, a blocker of intermediate conductance, Ca(2+)-sensitive K(+) channels (IK(Ca)). Ornithine 60-71 G protein-coupled receptor, class C, group 6, member A Rattus norvegicus 30-36 18806120-1 2008 The cellular metabolism of glutamine and proline are closely interrelated, because they can be interconverted with glutamate and ornithine via the mitochondrial pathway involving pyrroline-5-carboxylate (P5C). Ornithine 129-138 pyrroline-5-carboxylate reductase 1 Homo sapiens 204-207 18712872-1 2008 Chlorofusin is a recently isolated, naturally occurring inhibitor of p53-MDM2 complex formation whose structure is composed of a densely functionalized azaphilone-derived chromophore linked through the terminal amine of ornithine to a nine residue cyclic peptide. Ornithine 220-229 tumor protein p53 Homo sapiens 69-72 18712872-1 2008 Chlorofusin is a recently isolated, naturally occurring inhibitor of p53-MDM2 complex formation whose structure is composed of a densely functionalized azaphilone-derived chromophore linked through the terminal amine of ornithine to a nine residue cyclic peptide. Ornithine 220-229 MDM2 proto-oncogene Homo sapiens 73-77 18221783-7 2008 In the presence of 300 microM l-ornithine or 100 microM Al(3+), myocyte hyperpolarizations to calindol were potentiated whereas this potentiation and hyperpolarizations to l-ornithine were lost following incubation with an anti-GPRC6A antibody. Ornithine 30-41 G protein-coupled receptor, class C, group 6, member A Rattus norvegicus 228-234 18991196-3 2008 In contrast, corticotropin (ACTH) treatment was associated with increased alanine and phenylalanine, and decreased taurine compared to controls and untreated OMS, and increased glutamine, lysine, ornithine, and tyrosine compared to untreated OMS. Ornithine 196-205 proopiomelanocortin Homo sapiens 28-32 18816238-5 2008 Calcineurin inhibitor toxicity was associated with low levels of docosahexaenoic acid, ornithine, and the omega-3 index, and high total omega-6 and omega-3/omega-6 ratios. Ornithine 87-96 calcineurin binding protein 1 Homo sapiens 0-21 18477767-1 2008 The proteinase-activated receptor-2 (PAR2)-activating peptide with an N-terminal furoyl group modification, 2-furoyl-LIGRLO-NH2 (2fLI), was derivatized via its free ornithine amino group to yield [3H]propionyl-2fLI and Alexa Fluor 594-2fLI that were used as receptor probes for ligand binding assays and receptor visualization both for cultured cells in vitro and for colonic epithelial cells in vivo. Ornithine 165-174 F2R like trypsin receptor 1 Rattus norvegicus 4-35 18477767-1 2008 The proteinase-activated receptor-2 (PAR2)-activating peptide with an N-terminal furoyl group modification, 2-furoyl-LIGRLO-NH2 (2fLI), was derivatized via its free ornithine amino group to yield [3H]propionyl-2fLI and Alexa Fluor 594-2fLI that were used as receptor probes for ligand binding assays and receptor visualization both for cultured cells in vitro and for colonic epithelial cells in vivo. Ornithine 165-174 F2R like trypsin receptor 1 Rattus norvegicus 37-41 18477767-5 2008 We conclude that ornithine-derivatized 2fLI peptides are conveniently synthesized PAR2 probes that will be of value for future studies of receptor binding and visualization. Ornithine 17-26 F2R like trypsin receptor 1 Rattus norvegicus 82-86 18594222-10 2008 Oxidative stress in the pancreas was evident from 6 hrs; HSP72 synthesis was increased from 4 hrs after L-ornithine administration. Ornithine 104-115 heat shock protein family A (Hsp70) member 1A Rattus norvegicus 57-62 18991196-5 2008 The ACTH dose-association was most apparent for alanine and phosphoethanolamine, but lysine and ornithine were also higher in the high-dose ACTH group. Ornithine 96-105 proopiomelanocortin Homo sapiens 140-144 18419821-3 2008 RESULTS: We show here that ornithine-delta-aminotransferase (deltaOAT, At5g46180), the enzyme converting Orn to pyrroline-5-carboxylate (P5C), is localised in mitochondria and is essential for Arg catabolism. Ornithine 105-108 ornithine-delta-aminotransferase Arabidopsis thaliana 27-59 23105736-1 2008 Currently available method(s) for assaying pyrroline-5-carboxylate (P5C), an important intermediate metabolite of ornithine, proline and glutamate metabolic pathways, are cumbersome or not sensitive enough for microanalysis. Ornithine 114-123 pyrroline-5-carboxylate reductase 1 Homo sapiens 68-71 18172665-2 2008 Moreover, we tested the hypothesis that L -arginine and L -ornithine influence the expression and synthesis of hCAT1 and hCAT2 in cell culture experiments by means of real-time-PCR and Western blot. Ornithine 56-68 solute carrier family 7 member 1 Homo sapiens 111-116 18330478-1 2008 Ornithine decarboxylase (ODC), the rate-limiting enzyme in polyamine biosynthesis that decarboxylates ornithine to putrescine, has become a promising target for cancer research. Ornithine 102-111 ornithine decarboxylase 1 Homo sapiens 0-23 18330478-1 2008 Ornithine decarboxylase (ODC), the rate-limiting enzyme in polyamine biosynthesis that decarboxylates ornithine to putrescine, has become a promising target for cancer research. Ornithine 102-111 ornithine decarboxylase 1 Homo sapiens 25-28 18172665-2 2008 Moreover, we tested the hypothesis that L -arginine and L -ornithine influence the expression and synthesis of hCAT1 and hCAT2 in cell culture experiments by means of real-time-PCR and Western blot. Ornithine 56-68 solute carrier family 7 member 2 Homo sapiens 121-126 17928413-3 2007 This is a two-step process in which l-arginine:glycine amidinotransferase (AGAT) catalyzes the conversion of glycine and arginine to ornithine and guanidinoacetate (GAA); guanidinoacetate methyltransferase (GAMT) then catalyzes the S-adenosylmethionine-dependent methylation of GAA to creatine. Ornithine 133-142 glycine amidinotransferase Rattus norvegicus 36-73 17768678-0 2008 Phenelzine causes an increase in brain ornithine that is prevented by prior monoamine oxidase inhibition. Ornithine 39-48 monoamine oxidase A Rattus norvegicus 76-93 18182242-5 2008 We now report on new BK B1R antagonist analogs of B9958 with N-terminal basic residues in the d-configuration, or Lys-, Orn- derivatives (NiK, epsilon-nicotinoyllysine; PzO, 3-pyrazinoylornithine) and/or having hindered unusual amino acids at position 5 (Igl, alpha-(2-indanyl)glycine). Ornithine 120-123 bradykinin receptor B1 Homo sapiens 21-27 18574322-1 2008 We recently showed that arginine transport via cationic amino acid transporter 1 (CAT1), which transports arginine, lysine, ornithine, and histidine, is essential for erythropoiesis. Ornithine 124-133 solute carrier family 7 member 1 Homo sapiens 47-80 18574322-1 2008 We recently showed that arginine transport via cationic amino acid transporter 1 (CAT1), which transports arginine, lysine, ornithine, and histidine, is essential for erythropoiesis. Ornithine 124-133 solute carrier family 7 member 1 Homo sapiens 82-86 17928413-3 2007 This is a two-step process in which l-arginine:glycine amidinotransferase (AGAT) catalyzes the conversion of glycine and arginine to ornithine and guanidinoacetate (GAA); guanidinoacetate methyltransferase (GAMT) then catalyzes the S-adenosylmethionine-dependent methylation of GAA to creatine. Ornithine 133-142 glycine amidinotransferase Rattus norvegicus 75-79 17928413-3 2007 This is a two-step process in which l-arginine:glycine amidinotransferase (AGAT) catalyzes the conversion of glycine and arginine to ornithine and guanidinoacetate (GAA); guanidinoacetate methyltransferase (GAMT) then catalyzes the S-adenosylmethionine-dependent methylation of GAA to creatine. Ornithine 133-142 guanidinoacetate N-methyltransferase Rattus norvegicus 171-205 17928413-3 2007 This is a two-step process in which l-arginine:glycine amidinotransferase (AGAT) catalyzes the conversion of glycine and arginine to ornithine and guanidinoacetate (GAA); guanidinoacetate methyltransferase (GAMT) then catalyzes the S-adenosylmethionine-dependent methylation of GAA to creatine. Ornithine 133-142 guanidinoacetate N-methyltransferase Rattus norvegicus 207-211 17686999-1 2007 The role of ornithine decarboxylase (ODC) in polyamine metabolism has long been established, but the exact source of ornithine has always been unclear. Ornithine 12-21 ornithine decarboxylase, structural 1 Mus musculus 37-40 17934762-2 2007 C/EBP alpha activates albumin transcription and coordinates the expression of multiple ornithine cycle enzymes involved in urea production. Ornithine 87-96 CCAAT/enhancer binding protein (C/EBP), alpha Mus musculus 0-11 17934762-5 2007 mRNA levels for the ornithine cycle enzymes, namely arginase, carbamylphosphate synthetase 1, and ornithine transcarbamylase, also increase. Ornithine 20-29 ornithine transcarbamylase Mus musculus 98-124 17604199-2 2007 OAT transaminates ornithine to pyrroline 5-carboxylate, which is further catalyzed to proline by pyrroline 5-carboxylate reductase. Ornithine 18-27 ornithine aminotransferase Homo sapiens 0-3 17612583-1 2007 In species of the genus Nicotiana, as in most plants, the important polyamine precursor putrescine can be derived from the amino acids ornithine and/or arginine via the activity of ornithine decarboxylase (ODC) and/or arginine decarboxylase (ADC), respectively. Ornithine 135-144 ornithine decarboxylase Nicotiana tabacum 181-204 17612583-1 2007 In species of the genus Nicotiana, as in most plants, the important polyamine precursor putrescine can be derived from the amino acids ornithine and/or arginine via the activity of ornithine decarboxylase (ODC) and/or arginine decarboxylase (ADC), respectively. Ornithine 135-144 ornithine decarboxylase Nicotiana tabacum 206-209 17575112-4 2007 Structural analysis of the crystal structure of human ODC disclosed an additional hydrophobic pocket surrounding the epsilon-amino group of its substrate ornithine. Ornithine 154-163 ornithine decarboxylase 1 Homo sapiens 54-57 17442735-4 2007 We hypothesized that MKP-1, by attenuating iNOS expression, acts as a switch changing L-arg metabolism from NO production to L-orn production after endotoxin administration. Ornithine 125-130 dual specificity phosphatase 1 Mus musculus 21-26 17442735-4 2007 We hypothesized that MKP-1, by attenuating iNOS expression, acts as a switch changing L-arg metabolism from NO production to L-orn production after endotoxin administration. Ornithine 125-130 nitric oxide synthase 2, inducible Mus musculus 43-47 17494634-1 2007 We previously showed that ornithine was mainly transported via cationic amino acid transporter (CAT)-1 in human retinal pigment epithelial (RPE) cell line, human telomerase RT (hTERT)-RPE, and that CAT-1 was involved in ornithine cytotoxicity in ornithine-delta-aminotransferase (OAT)-deficient cell produced by a OAT specific inhibitor, 5-fluoromethylornithine (5-FMO). Ornithine 26-35 solute carrier family 7 member 1 Homo sapiens 96-102 17494634-1 2007 We previously showed that ornithine was mainly transported via cationic amino acid transporter (CAT)-1 in human retinal pigment epithelial (RPE) cell line, human telomerase RT (hTERT)-RPE, and that CAT-1 was involved in ornithine cytotoxicity in ornithine-delta-aminotransferase (OAT)-deficient cell produced by a OAT specific inhibitor, 5-fluoromethylornithine (5-FMO). Ornithine 26-35 solute carrier family 7 member 1 Homo sapiens 198-203 17494634-1 2007 We previously showed that ornithine was mainly transported via cationic amino acid transporter (CAT)-1 in human retinal pigment epithelial (RPE) cell line, human telomerase RT (hTERT)-RPE, and that CAT-1 was involved in ornithine cytotoxicity in ornithine-delta-aminotransferase (OAT)-deficient cell produced by a OAT specific inhibitor, 5-fluoromethylornithine (5-FMO). Ornithine 26-35 ornithine aminotransferase Homo sapiens 246-278 17494634-1 2007 We previously showed that ornithine was mainly transported via cationic amino acid transporter (CAT)-1 in human retinal pigment epithelial (RPE) cell line, human telomerase RT (hTERT)-RPE, and that CAT-1 was involved in ornithine cytotoxicity in ornithine-delta-aminotransferase (OAT)-deficient cell produced by a OAT specific inhibitor, 5-fluoromethylornithine (5-FMO). Ornithine 220-229 solute carrier family 7 member 1 Homo sapiens 96-102 17494634-4 2007 ODC mRNA expression was also increased by ornithine and polyamines, and gene silencing of ODC by siRNA decreased ornithine transport activity and its cytotoxicity. Ornithine 42-51 ornithine decarboxylase 1 Homo sapiens 0-3 17494634-4 2007 ODC mRNA expression was also increased by ornithine and polyamines, and gene silencing of ODC by siRNA decreased ornithine transport activity and its cytotoxicity. Ornithine 113-122 ornithine decarboxylase 1 Homo sapiens 90-93 17494634-5 2007 In addition, the mRNA of nuclear protein c-myc was also increased in 5-FMO- and ornithine-treated hTERT-RPE cells, and gene silencing of c-myc prevented the induction of CAT-1 and ODC. Ornithine 80-89 MYC proto-oncogene, bHLH transcription factor Homo sapiens 41-46 17494634-5 2007 In addition, the mRNA of nuclear protein c-myc was also increased in 5-FMO- and ornithine-treated hTERT-RPE cells, and gene silencing of c-myc prevented the induction of CAT-1 and ODC. Ornithine 80-89 MYC proto-oncogene, bHLH transcription factor Homo sapiens 137-142 17494634-5 2007 In addition, the mRNA of nuclear protein c-myc was also increased in 5-FMO- and ornithine-treated hTERT-RPE cells, and gene silencing of c-myc prevented the induction of CAT-1 and ODC. Ornithine 80-89 solute carrier family 7 member 1 Homo sapiens 170-175 17494634-5 2007 In addition, the mRNA of nuclear protein c-myc was also increased in 5-FMO- and ornithine-treated hTERT-RPE cells, and gene silencing of c-myc prevented the induction of CAT-1 and ODC. Ornithine 80-89 ornithine decarboxylase 1 Homo sapiens 180-183 17494634-7 2007 These results suggest that spermine plays an important role in stimulation of mRNA expression of CAT-1, which is a crucial role in ornithine cytotoxicity in OAT-deficient hTERT-RPE cells. Ornithine 131-140 solute carrier family 7 member 1 Homo sapiens 97-102 17197568-8 2007 Further, CAT-1 silencing by siRNA reduced ornithine cytotoxicity in OAT-deficient RPE cells. Ornithine 42-51 solute carrier family 7 member 1 Homo sapiens 9-14 17512708-2 2007 Argininosuccinate synthetase (ASS) and argininosuccinate lyase (ASL) are two ornithine cycle enzymes catalysing the last two steps in the arginine biosynthetic pathway. Ornithine 77-86 argininosuccinate synthase 1 Homo sapiens 30-33 17512708-13 2007 Both ass and asl genes were up-regulated within 3h after harvest showing that the induction mechanism is very sensitive to the harvest event and emphasizes the importance of the arginine biosynthetic pathway/ornithine cycle in post-harvest physiology. Ornithine 208-217 argininosuccinate synthase 1 Homo sapiens 5-8 17255300-7 2007 The increased arginase activity was limited to the CD11b(+)CD14(-) myeloid cells and resulted in significantly decreased serum levels of arginine and increased ornithine in patients. Ornithine 160-169 integrin subunit alpha M Homo sapiens 51-56 17140418-1 2007 Carbamoylphosphate synthetase-I is the flux-determining enzyme of the ornithine cycle, and neutralizes toxic ammonia by converting it to urea. Ornithine 70-79 carbamoyl-phosphate synthase 1 Homo sapiens 0-31 17197568-1 2007 PURPOSE: A prior report showed ornithine cytotoxicity in ornithine-delta-aminotransferase (OAT)-deficient human retinal pigment epithelial (RPE) cells in an in vitro model of gyrate atrophy of the choroid and retina. Ornithine 31-40 ornithine aminotransferase Homo sapiens 57-89 17274762-6 2007 StIPMK also restores the amino acid profiles of mutant yeast to wild-type, and does so with ornithine or arginine as the sole nitrogen sources. Ornithine 92-101 inositol polyphosphate multikinase Solanum tuberosum 0-6 17119118-2 2007 The decreased production of nitric oxide (NO) by NOS and the production of ornithine by ARG1 affect immune responses and tissue regeneration at sites of infection, respectively. Ornithine 75-84 arginase 1 Homo sapiens 88-92 17245368-8 2007 KEY RESULTS: Using our novel assay, we demonstrate that the basic L-alpha-amino acids ornithine, lysine, and arginine are the most potent agonists at wild-type mouse GPRC6A. Ornithine 86-95 G protein-coupled receptor, family C, group 6, member A Mus musculus 166-172 17197568-4 2007 Carrier-mediated ornithine transport via the L-type amino acid transporter (LAT)1, LAT2, cationic amino acid transporter (CAT)-1, and y(+)LAT2 systems was evaluated by short interfering (si)RNA-mediated gene silencing. Ornithine 17-26 solute carrier family 7 member 5 Homo sapiens 76-81 17197568-9 2007 CONCLUSIONS: The results suggest that ornithine transport via CAT-1 may play a crucial role in ornithine cytotoxicity in hTERT-RPE cells. Ornithine 38-47 solute carrier family 7 member 1 Homo sapiens 62-67 17197568-4 2007 Carrier-mediated ornithine transport via the L-type amino acid transporter (LAT)1, LAT2, cationic amino acid transporter (CAT)-1, and y(+)LAT2 systems was evaluated by short interfering (si)RNA-mediated gene silencing. Ornithine 17-26 linker for activation of T cells family member 2 Homo sapiens 83-87 17197568-9 2007 CONCLUSIONS: The results suggest that ornithine transport via CAT-1 may play a crucial role in ornithine cytotoxicity in hTERT-RPE cells. Ornithine 38-47 telomerase reverse transcriptase Homo sapiens 121-126 17197568-4 2007 Carrier-mediated ornithine transport via the L-type amino acid transporter (LAT)1, LAT2, cationic amino acid transporter (CAT)-1, and y(+)LAT2 systems was evaluated by short interfering (si)RNA-mediated gene silencing. Ornithine 17-26 solute carrier family 7 member 1 Homo sapiens 122-128 17197568-9 2007 CONCLUSIONS: The results suggest that ornithine transport via CAT-1 may play a crucial role in ornithine cytotoxicity in hTERT-RPE cells. Ornithine 95-104 solute carrier family 7 member 1 Homo sapiens 62-67 17197568-4 2007 Carrier-mediated ornithine transport via the L-type amino acid transporter (LAT)1, LAT2, cationic amino acid transporter (CAT)-1, and y(+)LAT2 systems was evaluated by short interfering (si)RNA-mediated gene silencing. Ornithine 17-26 solute carrier family 7 member 6 Homo sapiens 134-142 17197568-9 2007 CONCLUSIONS: The results suggest that ornithine transport via CAT-1 may play a crucial role in ornithine cytotoxicity in hTERT-RPE cells. Ornithine 95-104 telomerase reverse transcriptase Homo sapiens 121-126 17197568-5 2007 The cytoprotective effect of CAT-1-specific siRNA on ornithine cytotoxicity was measured using quantitative analysis of cellular adenosine triphosphate (ATP) at 24 hours after treatment with ornithine in OAT-deficient RPE cells. Ornithine 53-62 solute carrier family 7 member 1 Homo sapiens 29-34 17197568-5 2007 The cytoprotective effect of CAT-1-specific siRNA on ornithine cytotoxicity was measured using quantitative analysis of cellular adenosine triphosphate (ATP) at 24 hours after treatment with ornithine in OAT-deficient RPE cells. Ornithine 191-200 solute carrier family 7 member 1 Homo sapiens 29-34 17197568-10 2007 Reduction of the ornithine transport via CAT-1 may be a new target for treatment of gyrate atrophy. Ornithine 17-26 solute carrier family 7 member 1 Homo sapiens 41-46 16939563-4 2006 Arginine can also be metabolized to urea and ornithine by arginase-1, a pathway that generates L-proline, a substrate for collagen synthesis, and polyamines, which stimulate cellular proliferation. Ornithine 45-54 arginase 1 Homo sapiens 58-68 16916800-0 2006 Mouse ornithine decarboxylase-like gene encodes an antizyme inhibitor devoid of ornithine and arginine decarboxylating activity. Ornithine 6-15 ornithine decarboxylase antizyme 1 Mus musculus 51-59 16730327-9 2006 Early expression of BAC1 and BAC2 is consistent with the delivery of arginine, released from seed reserves, to mitochondrial arginase and the export of ornithine. Ornithine 152-161 Mitochondrial substrate carrier family protein Arabidopsis thaliana 20-24 16730327-9 2006 Early expression of BAC1 and BAC2 is consistent with the delivery of arginine, released from seed reserves, to mitochondrial arginase and the export of ornithine. Ornithine 152-161 Mitochondrial substrate carrier family protein Arabidopsis thaliana 29-33 16730327-10 2006 Increase of BAC2 transcript levels later in seedling development is consistent with roles in NO, polyamine or proline metabolism--processes involving arginine, citrulline and/or ornithine. Ornithine 178-187 Mitochondrial substrate carrier family protein Arabidopsis thaliana 12-16 16946537-0 2006 Bitterness suppression of BCAA solutions by L-ornithine. Ornithine 44-55 AT-rich interaction domain 4B Homo sapiens 26-30 16906410-1 2006 Gyrate atrophy (GA) is a rare degenerative, hereditary disease characterized by markedly high serum ornithine levels resulting from the deficiency of ornithine-delta-amino transferase (OAT), a mitochondrial matrix enzyme. Ornithine 100-109 ornithine aminotransferase Homo sapiens 0-19 16906410-1 2006 Gyrate atrophy (GA) is a rare degenerative, hereditary disease characterized by markedly high serum ornithine levels resulting from the deficiency of ornithine-delta-amino transferase (OAT), a mitochondrial matrix enzyme. Ornithine 100-109 ornithine aminotransferase Homo sapiens 150-183 16432806-2 2006 By internal acylation of Lys, Orn, L-1,4-diaminobutyric acid (Dab), L-1,3-diaminopropionic acid (Dap) at position 4 with the C-terminal Gly of the peptide tail, we prepared cyclo-(4-9)-[Lys(4), Gly(9)]-PA (pA(2) = 8.77 +/- 0.27), 1, and cyclo-(4-9)-[Orn(4), Gly(9)]-PA (pA(2) = 8.81 +/- 0.25), 3, which are equipotent with PA (pA(2) = 8.68 +/- 0.18) in the rat uterotonic assay and cyclo-(4-9)-[Dab(4), Gly(9)]-PA, 4, cyclo-(4-9)-[Dap(4), Gly(9)]-PA, 5, and cyclo-(4-9)-[Pmp(1), Lys(4), Gly(9)]-PA, 2, which were weaker OTAs. Ornithine 30-33 death-associated protein Rattus norvegicus 97-100 16703566-1 2006 In murine macrophages, as a result of arginine catabolism during activation, citruline is produced under the effect of IFN-gamma and LPS, and ornithine and polyamines by IL-4 and IL-10. Ornithine 142-151 interleukin 4 Mus musculus 170-174 16703566-9 2006 M-CSF-dependent proliferation was not affected in the macrophages of SLC7A2 knockout mice; however, these cells showed a drastic reduction in the production of citruline or ornithine and polyamines during activation. Ornithine 173-182 colony stimulating factor 1 (macrophage) Mus musculus 0-5 16432806-2 2006 By internal acylation of Lys, Orn, L-1,4-diaminobutyric acid (Dab), L-1,3-diaminopropionic acid (Dap) at position 4 with the C-terminal Gly of the peptide tail, we prepared cyclo-(4-9)-[Lys(4), Gly(9)]-PA (pA(2) = 8.77 +/- 0.27), 1, and cyclo-(4-9)-[Orn(4), Gly(9)]-PA (pA(2) = 8.81 +/- 0.25), 3, which are equipotent with PA (pA(2) = 8.68 +/- 0.18) in the rat uterotonic assay and cyclo-(4-9)-[Dab(4), Gly(9)]-PA, 4, cyclo-(4-9)-[Dap(4), Gly(9)]-PA, 5, and cyclo-(4-9)-[Pmp(1), Lys(4), Gly(9)]-PA, 2, which were weaker OTAs. Ornithine 30-33 death-associated protein Rattus norvegicus 431-434 16410053-11 2006 These data stress the hypothesis of a metabolon-like organization of the urea cycle together with NOS-2 in hepatocytes as excess L-ornithine will be metabolized to l-arginine and thereby increases NO production. Ornithine 129-140 nitric oxide synthase 2 Rattus norvegicus 98-103 16210335-1 2006 In the present study, we examined the role in hematopoiesis of cationic amino acid transporter 1 (CAT1), which transports L-arginine, L-lysine, L-ornithine, and L-histidine. Ornithine 144-155 solute carrier family 7 member 1 Homo sapiens 63-96 16371438-10 2006 Furthermore, GM-CSF induced an increase in arginase activity and in the conversion of L-arginine to ornithine, citrulline, glutamate, proline, and polyamines. Ornithine 100-109 colony stimulating factor 2 (granulocyte-macrophage) Mus musculus 13-19 16491103-3 2006 Agonists for GPRC6A are basic amino acids, particularly the analogues and derivatives of L-arginine and L-ornithine. Ornithine 104-115 G protein-coupled receptor class C group 6 member A Homo sapiens 13-19 16354653-3 2006 Previously, we found that in Selenomonas ruminantium, a strictly anaerobic and Gram-negative bacterium, a drastic degradation of lysine decarboxylase (LDC; EC 4.1.1.18), which has decarboxylase activities toward both L-lysine and L-ornithine with similar K(m) values, occurs upon entry into the stationary phase of cell growth by protease together with a protein of 22 kDa (P22). Ornithine 230-241 dynein cytoplasmic 1 heavy chain 1 Mus musculus 374-377 16513374-5 2006 Proliferation of breast cancer cells was assessed from the activity of ornithine decarboxylase (ODC) using [(14)C] labeled ornithine. Ornithine 71-80 ornithine decarboxylase 1 Homo sapiens 96-99 16210335-1 2006 In the present study, we examined the role in hematopoiesis of cationic amino acid transporter 1 (CAT1), which transports L-arginine, L-lysine, L-ornithine, and L-histidine. Ornithine 144-155 solute carrier family 7 member 1 Homo sapiens 98-102 15811879-1 2005 Arginase 1, an enzyme induced by Th2 cytokines, is a hallmark of alternatively activated macrophages and is responsible for the hydrolysis of L-arginine into ornithine, the building block for the production of polyamines. Ornithine 158-167 arginase 1 Homo sapiens 0-10 16455964-4 2006 A significant number of CD11b(+)/Gr-1(+) cells expressing arginase 1 accumulated in T cell zones around the germinal centers of the white pulp of the spleen within 6 h of trauma and lasted for at least 72 h. Increased arginase activity and arginase 1 expression, along with increased [(3)H]arginine uptake, l-arginine depletion, and l-ornithine accumulation in the culture medium, were observed exclusively in CD11b(+)/Gr-1(+) cells after traumatic stress. Ornithine 333-344 integrin subunit alpha M Homo sapiens 24-29 16455964-4 2006 A significant number of CD11b(+)/Gr-1(+) cells expressing arginase 1 accumulated in T cell zones around the germinal centers of the white pulp of the spleen within 6 h of trauma and lasted for at least 72 h. Increased arginase activity and arginase 1 expression, along with increased [(3)H]arginine uptake, l-arginine depletion, and l-ornithine accumulation in the culture medium, were observed exclusively in CD11b(+)/Gr-1(+) cells after traumatic stress. Ornithine 333-344 arginase 1 Homo sapiens 58-68 16078310-6 2006 The calibration curve was linear in the range 10-280 microg mL-1 for L-aspartic acid and 20-280 microg mL-1 for L-ornithine (for both amino acids, r=0.999). Ornithine 112-123 L1 cell adhesion molecule Mus musculus 103-107 16321608-3 2005 NEM, MTSEA and PLP inhibited the ornithine/citrulline carrier with a completely competitive type of mechanism. Ornithine 33-42 proteolipid protein 1 Homo sapiens 15-18 16321608-6 2005 On the basis of the interferences between SH reagents and PLP in the transport inhibition, it has been deduced that the distance between the SH and the NH(2) residues of the active site should be comparable to the distance between the gamma-NH(2) and COOH residues of the ornithine molecule. Ornithine 272-281 proteolipid protein 1 Homo sapiens 58-61 16155089-11 2006 These findings suggest that the use of iNOS gene therapy for pulmonary hypertensive disorders may not only be beneficial through NO-mediated pulmonary vasodilation but also may decrease vascular remodeling by limiting L-Orn production by native arginase. Ornithine 218-223 nitric oxide synthase 2 Bos taurus 39-43 15576824-9 2005 Proline oxidase and OAT, but not arginase, were present in allantoic and amniotic fluids for the production of ornithine (the immediate substrate for polyamine synthesis). Ornithine 111-120 ornithine aminotransferase, mitochondrial Sus scrofa 20-23 15781468-7 2005 We propose that the induction of glutamine synthetase genes early in development and the subsequent formation of the active protein are preparatory for the increased capacity of the embryo to convert the toxic nitrogen end product, ammonia, into glutamine, which may then be utilized in the ornithine-urea cycle or other pathways. Ornithine 291-300 glutamine synthetase Oncorhynchus mykiss 33-53 15753084-12 2005 The results substantiate the hypothesis that intramitochondrial arginase, presumably the arginase-II isozyme, may play an important role in the regulation of hepatic ureagenesis by furnishing ornithine for net synthesis of N-acetylglutamate, citrulline, and aspartate. Ornithine 192-201 arginase 2 Rattus norvegicus 89-100 17173623-1 2005 Ornithine decarboxylase (ODC) is a cytosolic enzyme that catalyses the direct decarboxylation of l-ornithine to putrescine, one of the rate-limiting steps of polyamine biosynthesis in plants. Ornithine 97-108 ornithine decarboxylase Nicotiana tabacum 0-23 17173623-1 2005 Ornithine decarboxylase (ODC) is a cytosolic enzyme that catalyses the direct decarboxylation of l-ornithine to putrescine, one of the rate-limiting steps of polyamine biosynthesis in plants. Ornithine 97-108 ornithine decarboxylase Nicotiana tabacum 25-28 15901937-7 2005 Ornithine decarboxylase (ODC), which catalyzes the conversion of ornithine to putrescine, fulfilled these prerequisites. Ornithine 65-74 ornithine decarboxylase 1 Homo sapiens 0-23 15539552-1 2005 The enzymes ornithine aminotransferase (OAT) and ornithine decarboxylase (ODC) share L-ornithine as a common substrate and arginase II produces this amino acid. Ornithine 85-96 ornithine aminotransferase Mus musculus 12-38 15539552-1 2005 The enzymes ornithine aminotransferase (OAT) and ornithine decarboxylase (ODC) share L-ornithine as a common substrate and arginase II produces this amino acid. Ornithine 85-96 ornithine decarboxylase, structural 1 Mus musculus 49-72 15539552-1 2005 The enzymes ornithine aminotransferase (OAT) and ornithine decarboxylase (ODC) share L-ornithine as a common substrate and arginase II produces this amino acid. Ornithine 85-96 ornithine decarboxylase, structural 1 Mus musculus 74-77 15616821-10 2005 Finally, in the PST of females, L-arginine-derived ornithine may be a precursor for the renal production of L -glutamate and L-glutamine because high levels of AII, ornithine aminotransferase and glutamine synthetase are expressed in this nephron segment. Ornithine 51-60 glutamate-ammonia ligase (glutamine synthetase) Mus musculus 196-216 15517380-1 2005 UNLABELLED: Delta1-pyrroline-5-carboxylate synthase (P5CS) catalyses the reduction of glutamate to Delta1-pyrroline-5-carboxylate, a critical step in the biosynthesis of proline, ornithine and arginine. Ornithine 179-188 aldehyde dehydrogenase 18 family member A1 Homo sapiens 18-51 15517380-1 2005 UNLABELLED: Delta1-pyrroline-5-carboxylate synthase (P5CS) catalyses the reduction of glutamate to Delta1-pyrroline-5-carboxylate, a critical step in the biosynthesis of proline, ornithine and arginine. Ornithine 179-188 aldehyde dehydrogenase 18 family member A1 Homo sapiens 53-57 15517380-8 2005 Furthermore, we show the results of ornithine loading tests and indirect enzyme studies corroborating the biological significance of the defect in P5CS in vivo. Ornithine 36-45 aldehyde dehydrogenase 18 family member A1 Homo sapiens 147-151 16168128-2 2005 Ornithine decarboxylase converts ornithine to putrescine and is the rate-limiting step in polyamine synthesis.alpha-Difluoromethylornithine (DFMO) irreversibly inhibits ornithine decarboxylase and MDA-MB-435 human breast cancer metastasis to the lung without blocking orthotopic tumor growth. Ornithine 33-42 ornithine decarboxylase 1 Homo sapiens 0-23 16168128-2 2005 Ornithine decarboxylase converts ornithine to putrescine and is the rate-limiting step in polyamine synthesis.alpha-Difluoromethylornithine (DFMO) irreversibly inhibits ornithine decarboxylase and MDA-MB-435 human breast cancer metastasis to the lung without blocking orthotopic tumor growth. Ornithine 33-42 ornithine decarboxylase 1 Homo sapiens 169-192 15901937-7 2005 Ornithine decarboxylase (ODC), which catalyzes the conversion of ornithine to putrescine, fulfilled these prerequisites. Ornithine 65-74 ornithine decarboxylase 1 Homo sapiens 25-28 15538644-3 2004 Concerning PMN immune function markers ornithine increased H2O2-generation and MPO activity while O2- -formation was decreased. Ornithine 39-48 myeloperoxidase Homo sapiens 79-82 15491978-2 2004 The human cationic amino acid transporter hCAT-1 is almost ubiquitously expressed and probably the most important entity for supplying cells with extracellular arginine, lysine, and ornithine. Ornithine 182-191 solute carrier family 7 member 1 Homo sapiens 42-48 15535970-2 2004 Delta1-pyrroline-5-carboxylate is formed in liver from proline by proline oxidase (EC number not assigned) or from ornithine via ornithine aminotransferase. Ornithine 115-124 ornithine aminotransferase Rattus norvegicus 129-155 15190062-2 2004 The virus encodes a homolog of eukaryotic ornithine decarboxylase (ODC) that was previously demonstrated to be capable of decarboxylating l-ornithine. Ornithine 138-149 ornithine decarboxylase 1 Homo sapiens 42-65 15494015-7 2004 It is probable that, in the face of chronically increased PtdIns(3,4,5)P(3) levels in their myeloid progenitors, SHIP1(-/-) mice display a skewed development away from M1 (killer) macrophages (which have high inducible nitric oxide synthase levels and produce NO to kill microorganisms and tumour cells), towards M2 (healing) macrophages (which have high arginase levels and produce ornithine to promote host-cell growth and collagen formation). Ornithine 383-392 inositol polyphosphate-5-phosphatase D Mus musculus 113-118 15190062-2 2004 The virus encodes a homolog of eukaryotic ornithine decarboxylase (ODC) that was previously demonstrated to be capable of decarboxylating l-ornithine. Ornithine 138-149 ornithine decarboxylase 1 Homo sapiens 67-70 15190062-3 2004 However, the active site of this enzyme contains a key amino acid substitution (Glu for Asp) of a residue that interacts with the delta-amino group of ornithine analogs in the x-ray structures of ODC. Ornithine 151-160 ornithine decarboxylase 1 Homo sapiens 196-199 15064231-6 2004 Colonocytes recovered from the P58 group were characterized at that time and thereafter by an increased capacity for l-ornithine and urea production through arginase (P < 0.05). Ornithine 117-128 protein disulfide isomerase family A, member 3 Rattus norvegicus 31-34 15265947-2 2004 Importantly, arginase synthesizes ornithine, which is metabolized by the enzyme ornithine decarboxylase (ODC) to produce polyamines. Ornithine 34-43 ornithine decarboxylase, structural 1 Mus musculus 80-103 15265947-2 2004 Importantly, arginase synthesizes ornithine, which is metabolized by the enzyme ornithine decarboxylase (ODC) to produce polyamines. Ornithine 34-43 ornithine decarboxylase, structural 1 Mus musculus 105-108 14871882-0 2004 Ornithine metabolism in male and female rat kidney: mitochondrial expression of ornithine aminotransferase and arginase II. Ornithine 0-9 ornithine aminotransferase Rattus norvegicus 80-106 14871882-0 2004 Ornithine metabolism in male and female rat kidney: mitochondrial expression of ornithine aminotransferase and arginase II. Ornithine 0-9 arginase 2 Rattus norvegicus 111-122 14871882-1 2004 In the kidney, L-ornithine is reabsorbed along the proximal convoluted tubule (PCT), transported by basolateral carriers, and produced by arginase II (AII). Ornithine 15-26 arginase 2 Rattus norvegicus 138-149 14871882-1 2004 In the kidney, L-ornithine is reabsorbed along the proximal convoluted tubule (PCT), transported by basolateral carriers, and produced by arginase II (AII). Ornithine 15-26 arginase 2 Rattus norvegicus 151-154 14871882-18 2004 However, the coexpression of ODC, glutamate decarboxylase, and glutamine synthetase in PST suggests that L-ornithine can also be metabolized to putrescine, GABA, and L-glutamine. Ornithine 105-116 ornithine decarboxylase 1 Rattus norvegicus 29-32 14871882-18 2004 However, the coexpression of ODC, glutamate decarboxylase, and glutamine synthetase in PST suggests that L-ornithine can also be metabolized to putrescine, GABA, and L-glutamine. Ornithine 105-116 glutamate-ammonia ligase Rattus norvegicus 34-57 14871882-18 2004 However, the coexpression of ODC, glutamate decarboxylase, and glutamine synthetase in PST suggests that L-ornithine can also be metabolized to putrescine, GABA, and L-glutamine. Ornithine 105-116 glutamate-ammonia ligase Rattus norvegicus 63-83 12807890-2 2003 Two isoforms of the human ornithine carrier, ORC1 and ORC2, have been identified by overexpression of the proteins in bacteria and by study of the transport properties of the purified proteins reconstituted into liposomes. Ornithine 26-35 origin recognition complex subunit 1 Homo sapiens 45-49 14712329-13 2004 Experiments on the intracellular distribution and the effects of the arginase inhibitors ornithine and N(omega)-hydroxy-L-arginine (NOHA), suggested the presence of both arginase I and arginase II in rat submandibular gland. Ornithine 89-98 arginase 2 Rattus norvegicus 185-196 15050972-3 2004 A mitochondrial form, AII, has been thought to be more widely expressed and to be involved in the biosynthesis of polyamines, the amino acids ornithine, proline, and glutamate and in the inflammatory process, among others. Ornithine 142-151 NLR family pyrin domain containing 3 Homo sapiens 22-25 15638127-13 2004 High levels of ornithine were induced only upon IL-4 activation. Ornithine 15-24 interleukin 4 Mus musculus 48-52 12859253-3 2003 Purified human ODC-catalysed ornithine decarboxylation is highly stereospecific. Ornithine 29-38 ornithine decarboxylase 1 Homo sapiens 15-18 12859253-10 2003 D-DFMO was a more potent inhibitor (IC50 approximately 7.5 microM) when compared with D-ornithine (IC50 approximately 1.5 mM) of ODC-catalysed L-ornithine decarboxylation. Ornithine 86-97 ornithine decarboxylase 1 Homo sapiens 129-132 12859253-10 2003 D-DFMO was a more potent inhibitor (IC50 approximately 7.5 microM) when compared with D-ornithine (IC50 approximately 1.5 mM) of ODC-catalysed L-ornithine decarboxylation. Ornithine 143-154 ornithine decarboxylase 1 Homo sapiens 129-132 12923240-11 2003 The main roles of AI are regulation of arginine concentration by degrading arginine and production of ornithine for polyamine biosynthesis, but AI may not be the principal enzyme for regulating glutamate biosynthesis in tissues and cells. Ornithine 102-111 arginase, liver Mus musculus 18-20 14622413-5 2003 Furthermore, yeast cells lacking Agc1p were unable to grow on acetate and oleic acid, and had reduced levels of valine, ornithine and citrulline; in contrast they grew on ethanol. Ornithine 120-129 citrin Saccharomyces cerevisiae S288C 33-38 12807890-2 2003 Two isoforms of the human ornithine carrier, ORC1 and ORC2, have been identified by overexpression of the proteins in bacteria and by study of the transport properties of the purified proteins reconstituted into liposomes. Ornithine 26-35 origin recognition complex subunit 2 Homo sapiens 54-58 12807890-4 2003 ORC2 has a broader specificity than ORC1, and L- and D-histidine, L-homoarginine, and D-isomers of ornithine, lysine, and ornithine are all substrates. Ornithine 99-108 origin recognition complex subunit 2 Homo sapiens 0-4 12807890-4 2003 ORC2 has a broader specificity than ORC1, and L- and D-histidine, L-homoarginine, and D-isomers of ornithine, lysine, and ornithine are all substrates. Ornithine 99-108 origin recognition complex subunit 1 Homo sapiens 36-40 12807890-4 2003 ORC2 has a broader specificity than ORC1, and L- and D-histidine, L-homoarginine, and D-isomers of ornithine, lysine, and ornithine are all substrates. Ornithine 122-131 origin recognition complex subunit 2 Homo sapiens 0-4 12807890-4 2003 ORC2 has a broader specificity than ORC1, and L- and D-histidine, L-homoarginine, and D-isomers of ornithine, lysine, and ornithine are all substrates. Ornithine 122-131 origin recognition complex subunit 1 Homo sapiens 36-40 12948741-7 2003 When ORNT2 is overexpressed transiently in cultured fibroblasts from HHH patients, it rescues the deficient ornithine metabolism in these cells. Ornithine 108-117 solute carrier family 25 member 2 Homo sapiens 5-10 12774850-6 2003 In contrast, we identified polyamine biosynthesis as a cellular target of aspirin, since the treatment of HT-29 Glc(-/+) cells with aspirin reduced the flux of L-ornithine through ornithine decarboxylase, an effect that could not be explained by an acute action of the drug on the ornithine decarboxylase catalytic activity. Ornithine 160-171 ornithine decarboxylase 1 Homo sapiens 180-203 12679340-1 2003 In the presence of ornithine and arginine, ornithine carbamoyltransferase (OTCase) and arginase form a one-to-one enzyme complex in which the activity of OTCase is inhibited whereas arginase remains catalytically active. Ornithine 19-28 ornithine carbamoyltransferase Saccharomyces cerevisiae S288C 43-73 12679340-1 2003 In the presence of ornithine and arginine, ornithine carbamoyltransferase (OTCase) and arginase form a one-to-one enzyme complex in which the activity of OTCase is inhibited whereas arginase remains catalytically active. Ornithine 19-28 ornithine carbamoyltransferase Saccharomyces cerevisiae S288C 75-81 12679340-1 2003 In the presence of ornithine and arginine, ornithine carbamoyltransferase (OTCase) and arginase form a one-to-one enzyme complex in which the activity of OTCase is inhibited whereas arginase remains catalytically active. Ornithine 19-28 ornithine carbamoyltransferase Saccharomyces cerevisiae S288C 154-160 12679340-5 2003 In OTCase, mutations of putative ornithine binding residues, Asp-182, Asn-184, Asn-185, Cys-289, and Glu-256 greatly reduced the affinity for ornithine and impaired the interaction with arginase. Ornithine 33-42 ornithine carbamoyltransferase Saccharomyces cerevisiae S288C 3-9 12679340-5 2003 In OTCase, mutations of putative ornithine binding residues, Asp-182, Asn-184, Asn-185, Cys-289, and Glu-256 greatly reduced the affinity for ornithine and impaired the interaction with arginase. Ornithine 142-151 ornithine carbamoyltransferase Saccharomyces cerevisiae S288C 3-9 12679340-6 2003 The four lysine residues located in the SMG loop, Lys-260, Lys-263, Lys-265, and Lys-268, also play an important role in mediating the sensitivity of OTCase to ornithine and to arginase and appear to be involved in transducing and enhancing the signal given by ornithine for the closure of the catalytic domain. Ornithine 160-169 ornithine carbamoyltransferase Saccharomyces cerevisiae S288C 150-156 12679340-6 2003 The four lysine residues located in the SMG loop, Lys-260, Lys-263, Lys-265, and Lys-268, also play an important role in mediating the sensitivity of OTCase to ornithine and to arginase and appear to be involved in transducing and enhancing the signal given by ornithine for the closure of the catalytic domain. Ornithine 261-270 ornithine carbamoyltransferase Saccharomyces cerevisiae S288C 150-156 12631327-1 2003 We describe the identification and functional characterization of two Arabidopsis mitochondrial basic amino acid carriers (BAC), AtmBAC1 and AtmBAC2, which are related to the yeast ornithine (Orn) carrier Ort1p, also known as Arg11p. Ornithine 181-190 Mitochondrial substrate carrier family protein Arabidopsis thaliana 129-136 12709047-5 2003 In the liver, where arginine is hydrolyzed to form urea and ornithine, the ASS gene is highly expressed, and hormones and nutrients constitute the major regulating factors: (a) glucocorticoids, glucagon and insulin, particularly, control the expression of this gene both during development and adult life; (b) dietary protein intake stimulates ASS gene expression, with a particular efficiency of specific amino acids like glutamine. Ornithine 60-69 argininosuccinate synthase 1 Homo sapiens 75-78 12579527-5 2003 The results indicate that arginine, citrulline and ornithine supplementation increased the flux of substrate through the reaction catalysed by glutamine synthetase, leading to increased glutamine production after an exhaustive bout of exercise, and of the mechanism involved in ammonia buffering. Ornithine 51-60 glutamate-ammonia ligase Rattus norvegicus 143-163 12631327-2 2003 The arg11 mutant requires arginine (Arg) supplementation because it fails to export sufficient ornithine from the mitochondrion to the cytosol where it is converted to arginine. Ornithine 95-104 Ort1p Saccharomyces cerevisiae S288C 4-9 12631327-4 2003 The more efficient putative carrier, AtmBAC1, was expressed in E. coli, purified, and reconstituted into phospholipid vesicles, where it transported the basic l-amino acids arginine, lysine, ornithine and histidine (in order of decreasing affinity). Ornithine 191-200 Mitochondrial substrate carrier family protein Arabidopsis thaliana 37-44 12631327-1 2003 We describe the identification and functional characterization of two Arabidopsis mitochondrial basic amino acid carriers (BAC), AtmBAC1 and AtmBAC2, which are related to the yeast ornithine (Orn) carrier Ort1p, also known as Arg11p. Ornithine 181-190 Mitochondrial substrate carrier family protein Arabidopsis thaliana 141-148 12631327-7 2003 AtmBAC1 appeared to be more stereospecific than the yeast and mammalian ornithine carriers, exhibiting greater preference for the l-forms of arginine, lysine and ornithine. Ornithine 162-171 Mitochondrial substrate carrier family protein Arabidopsis thaliana 0-7 12631327-1 2003 We describe the identification and functional characterization of two Arabidopsis mitochondrial basic amino acid carriers (BAC), AtmBAC1 and AtmBAC2, which are related to the yeast ornithine (Orn) carrier Ort1p, also known as Arg11p. Ornithine 181-190 Ort1p Saccharomyces cerevisiae S288C 205-210 12631327-1 2003 We describe the identification and functional characterization of two Arabidopsis mitochondrial basic amino acid carriers (BAC), AtmBAC1 and AtmBAC2, which are related to the yeast ornithine (Orn) carrier Ort1p, also known as Arg11p. Ornithine 181-190 Ort1p Saccharomyces cerevisiae S288C 226-232 12631327-1 2003 We describe the identification and functional characterization of two Arabidopsis mitochondrial basic amino acid carriers (BAC), AtmBAC1 and AtmBAC2, which are related to the yeast ornithine (Orn) carrier Ort1p, also known as Arg11p. Ornithine 192-195 Mitochondrial substrate carrier family protein Arabidopsis thaliana 129-136 12631327-1 2003 We describe the identification and functional characterization of two Arabidopsis mitochondrial basic amino acid carriers (BAC), AtmBAC1 and AtmBAC2, which are related to the yeast ornithine (Orn) carrier Ort1p, also known as Arg11p. Ornithine 192-195 Mitochondrial substrate carrier family protein Arabidopsis thaliana 141-148 12631327-1 2003 We describe the identification and functional characterization of two Arabidopsis mitochondrial basic amino acid carriers (BAC), AtmBAC1 and AtmBAC2, which are related to the yeast ornithine (Orn) carrier Ort1p, also known as Arg11p. Ornithine 192-195 Ort1p Saccharomyces cerevisiae S288C 205-210 12631327-1 2003 We describe the identification and functional characterization of two Arabidopsis mitochondrial basic amino acid carriers (BAC), AtmBAC1 and AtmBAC2, which are related to the yeast ornithine (Orn) carrier Ort1p, also known as Arg11p. Ornithine 192-195 Ort1p Saccharomyces cerevisiae S288C 226-232 12517306-5 2003 Ort1p/Arg11p is a member of the mitochondrial carrier family (MCF) essential for ornithine export from mitochondria. Ornithine 81-90 Ort1p Saccharomyces cerevisiae S288C 0-5 12546703-8 2003 This is a result of 10-fold higher levels of arginase I in the SHIP(-/-) macrophages, which redirects the iNOS substrate, L-arginine, from NO to ornithine production. Ornithine 145-154 arginase, liver Mus musculus 45-55 12546703-8 2003 This is a result of 10-fold higher levels of arginase I in the SHIP(-/-) macrophages, which redirects the iNOS substrate, L-arginine, from NO to ornithine production. Ornithine 145-154 inositol polyphosphate-5-phosphatase D Mus musculus 63-67 12546703-8 2003 This is a result of 10-fold higher levels of arginase I in the SHIP(-/-) macrophages, which redirects the iNOS substrate, L-arginine, from NO to ornithine production. Ornithine 145-154 nitric oxide synthase 2, inducible Mus musculus 106-110 12546703-9 2003 This suggests that the chronically elevated PI-3,4,5-P(3) levels in SHIP(-/-) mice may convert M1 (killing) macrophages, which produce NO to kill micro-organisms and tumour cells, into M2 (healing) macrophages, which produce ornithine to promote host cell growth and fibrosis. Ornithine 225-234 inositol polyphosphate-5-phosphatase D Mus musculus 68-72 12517306-5 2003 Ort1p/Arg11p is a member of the mitochondrial carrier family (MCF) essential for ornithine export from mitochondria. Ornithine 81-90 Ort1p Saccharomyces cerevisiae S288C 6-12 12019204-9 2002 Hence, L-arginine, which is irreversibly hydrolyzed to urea and ornithine by arginase, also induced hepatic CYP2E1. Ornithine 64-73 cytochrome P450, family 2, subfamily e, polypeptide 1 Rattus norvegicus 108-114 12145284-8 2002 Exogenous l-ornithine did not inhibit NOHA-induced caspase-8 activation and cleavage of BH(3) interacting domain but acted at the mitochondrial level and inhibited the NOHA-induced cytochrome c release and apoptosis. Ornithine 10-21 cytochrome c, somatic Homo sapiens 181-193 12093449-1 2002 Specific amino acids, such as arginine, lysine and ornithine, can stimulate growth hormone (GH) release when infused intravenously or administered orally. Ornithine 51-60 growth hormone 1 Homo sapiens 76-90 12093449-1 2002 Specific amino acids, such as arginine, lysine and ornithine, can stimulate growth hormone (GH) release when infused intravenously or administered orally. Ornithine 51-60 growth hormone 1 Homo sapiens 92-94 12061769-1 2002 The urea cycle, which involves enzymes located in both the mitochondrion and cytoplasm, requires transport of ornithine and citrulline across the mitochondrial membrane by the ornithine/citrulline antiporter ORNT1. Ornithine 110-119 solute carrier family 25 member 15 Rattus norvegicus 208-213 12061769-1 2002 The urea cycle, which involves enzymes located in both the mitochondrion and cytoplasm, requires transport of ornithine and citrulline across the mitochondrial membrane by the ornithine/citrulline antiporter ORNT1. Ornithine 176-185 solute carrier family 25 member 15 Rattus norvegicus 208-213 11742824-1 2002 Polyamines are essential for cell proliferation; therefore, we hypothesized that arginase I or arginase II activities, via production of ornithine for polyamine synthesis, may be limiting for proliferation of endothelial cells (EC). Ornithine 137-146 arginase 2 Rattus norvegicus 95-106 11971019-4 2002 Arginase competes with iNOS by converting L-arginine to L-ornithine. Ornithine 56-67 nitric oxide synthase 2, inducible Mus musculus 23-27 11736657-5 2001 Kinetic studies of ODC showed that N. glutinosa ODC decarboxylated both l-ornithine and l-lysine with K(m) values of 562 microM and 1592 microM at different optimal pH values of 8.0 and 6.8 respectively. Ornithine 72-83 ornithine decarboxylase 1 Homo sapiens 19-22 11736657-5 2001 Kinetic studies of ODC showed that N. glutinosa ODC decarboxylated both l-ornithine and l-lysine with K(m) values of 562 microM and 1592 microM at different optimal pH values of 8.0 and 6.8 respectively. Ornithine 72-83 ornithine decarboxylase 1 Homo sapiens 48-51 11746358-3 2001 AII, in contrast, is predominantly mitochondrial, is more widely expressed, and is thought to function primarily to produce ornithine. Ornithine 124-133 arginase type II Mus musculus 0-3 11749046-0 2001 Improving treatment of guanidinoacetate methyltransferase deficiency: reduction of guanidinoacetic acid in body fluids by arginine restriction and ornithine supplementation. Ornithine 147-156 guanidinoacetate N-methyltransferase Homo sapiens 23-57 11698350-2 2001 These actions of NOHA were abolished in the presence of exogenous L-ornithine suggesting that a reduction in the intracellular polyamine content might be responsible for the activation of caspase-3 and apoptotic actions of NOHA. Ornithine 66-77 caspase 3 Homo sapiens 188-197 11534936-1 2001 BACKGROUND AND AIMS: L-Arg is the substrate for nitric oxide, and also for L-ornithine which, in turn, is the precursor for the synthesis of collagen and polyamines. Ornithine 75-86 Rho guanine nucleotide exchange factor 12 Rattus norvegicus 21-26 11533243-1 2001 Overexpression and inhibitor studies have suggested that the c-Myc target gene for ornithine decarboxylase (ODC), the enzyme which converts ornithine to putrescine, plays an important role in diverse biological processes, including cell growth, differentiation, transformation, and apoptosis. Ornithine 83-92 ornithine decarboxylase, structural 1 Mus musculus 108-111 11370664-1 2001 Human type II arginase, which is extrahepatic and mitochondrial in location, catalyzes the hydrolysis of arginine to form ornithine and urea. Ornithine 122-131 arginase 2 Homo sapiens 6-22 11514144-0 2001 Amino acid derived sulfonamide hydroxamates as inhibitors of procollagen C-proteinase: solid-phase synthesis of ornithine analogues. Ornithine 112-121 prolylcarboxypeptidase Homo sapiens 61-85 11470919-1 2001 Arginase, which exists as the isoforms arginase I and II, catalyzes the hydrolysis of arginine to ornithine and urea. Ornithine 98-107 arginase 2 Rattus norvegicus 39-56 11370664-8 2001 Ornithine, a product of the reaction catalyzed by arginase and a potent inhibitor of type I arginase, is a poor inhibitor of the type II isozyme. Ornithine 0-9 arginase 1 Homo sapiens 85-100 11388776-1 2001 A new technique for controllable elevation of night time growth hormone (GH) release in adult humans involves a synergy between oral intake of the naturally occurring compounds acetyl-L-carnitine (500 mg) and L-ornithine (25-100 mg) taken at night time sleep after a 3 to 4 hour fast. Ornithine 209-220 growth hormone 1 Homo sapiens 57-71 11388776-1 2001 A new technique for controllable elevation of night time growth hormone (GH) release in adult humans involves a synergy between oral intake of the naturally occurring compounds acetyl-L-carnitine (500 mg) and L-ornithine (25-100 mg) taken at night time sleep after a 3 to 4 hour fast. Ornithine 209-220 growth hormone 1 Homo sapiens 73-75 11297744-0 2001 CCAAT/enhancer-binding protein beta is required for activation of genes for ornithine cycle enzymes by glucocorticoids and glucagon in primary-cultured hepatocytes. Ornithine 76-85 CCAAT/enhancer binding protein (C/EBP), beta Mus musculus 0-35 11297744-6 2001 Therefore, C/EBPbeta is required for hormonal induction of the genes for ornithine cycle enzymes in primary-cultured hepatocytes, while the deficiency of C/EBPbeta is compensated for in vivo. Ornithine 73-82 CCAAT/enhancer binding protein (C/EBP), beta Mus musculus 11-20 11247829-1 2001 Because L-arginine is degraded by hepatic arginase to ornithine and urea and is transported by the regulated 2A cationic amino acid y(+) transporter (CAT2A), hepatic transport may regulate plasma arginine concentration. Ornithine 54-63 solute carrier family 7 member 2 Rattus norvegicus 150-155 11276280-1 2001 Ornithine transcarbamylase (OTC) is a mitochondrial-matrix enzyme that catalyzes conversion of ornithine and carbamyl phosphate to citrulline, the second step in the urea cycle. Ornithine 95-104 ornithine transcarbamylase Homo sapiens 0-26 11276280-1 2001 Ornithine transcarbamylase (OTC) is a mitochondrial-matrix enzyme that catalyzes conversion of ornithine and carbamyl phosphate to citrulline, the second step in the urea cycle. Ornithine 95-104 ornithine transcarbamylase Homo sapiens 28-31 11231463-15 2001 Arginase and NOS 2 may compete for available arginine as a substrate, thereby limiting later NO production in favor of sustained ornithine synthesis. Ornithine 129-138 nitric oxide synthase 2 Sus scrofa 13-18 11261568-12 2001 These results indicate that kidney arginase was readily activated by Arg provided in the water, resulting in an immediate increase in plasma urea and ornithine. Ornithine 150-159 arginase 2 Homo sapiens 28-43 11259671-5 2001 The cytostatic action of the NO donor agents as well as alpha-difluoromethylornithine (DFMO), a known ODC inhibitor, was prevented by addition of putrescine but not ornithine. Ornithine 76-85 ornithine decarboxylase 1 Homo sapiens 102-105 11244354-4 2001 High doses of ornithine (0.5 M) reduced while low doses (0.02 M) enhanced the ERG amplitudes. Ornithine 14-23 ETS transcription factor ERG Rattus norvegicus 78-81 11244354-7 2001 We conclude that the effect of ornithine on retinal function is dose dependent and can either enhance or depress the ERG amplitudes. Ornithine 31-40 ETS transcription factor ERG Rattus norvegicus 117-120 11222476-5 2001 TGF-beta(1) also stimulated L-ornithine catabolism by elevating ornithine decarboxylase (ODC) and ornithine aminotransferase (OAT) activity. Ornithine 28-39 transforming growth factor beta 1 Homo sapiens 0-11 11222476-5 2001 TGF-beta(1) also stimulated L-ornithine catabolism by elevating ornithine decarboxylase (ODC) and ornithine aminotransferase (OAT) activity. Ornithine 28-39 ornithine decarboxylase 1 Homo sapiens 64-87 11222476-5 2001 TGF-beta(1) also stimulated L-ornithine catabolism by elevating ornithine decarboxylase (ODC) and ornithine aminotransferase (OAT) activity. Ornithine 28-39 ornithine decarboxylase 1 Homo sapiens 89-92 11222476-5 2001 TGF-beta(1) also stimulated L-ornithine catabolism by elevating ornithine decarboxylase (ODC) and ornithine aminotransferase (OAT) activity. Ornithine 28-39 ornithine aminotransferase Homo sapiens 98-124 11007319-0 2000 Ornithine metabolism along the female mouse nephron: localization of ornithine decarboxylase and ornithine aminotransferase. Ornithine 0-9 ornithine decarboxylase, structural 1 Mus musculus 69-92 10964926-8 2000 It was found that the putrescine and ornithine recognition site on PotE is located at the cytoplasmic surface and the vestibule of the pore consisting of 12 transmembrane segments. Ornithine 37-46 POTE ankyrin domain family member D Homo sapiens 67-71 10993224-8 2000 These results demonstrate that the potent inhibitory activities of N(omega)-masked ornithine analogs against the growth of Meth A cells and methotrexate-resistant CCRF-CEM cells, results from effective uptake via reduced folate carrier and their potent DHFR inhibition. Ornithine 83-92 dihydrofolate reductase Homo sapiens 253-257 11275413-1 2001 The opioids heroin, methadone, buprenorphine, and morphine produce supraspinal antinociception in CD-1 mice that is antagonized by Cys(2), Tyr(3), Orn(5), Pen(7)-amide but not by naltrindole or nor-binaltorphimine. Ornithine 147-150 proprotein convertase subtilisin/kexin type 1 inhibitor Mus musculus 155-158 11092761-0 2000 Hyperammonemia with reduced ornithine, citrulline, arginine and proline: a new inborn error caused by a mutation in the gene encoding delta(1)-pyrroline-5-carboxylate synthase. Ornithine 28-37 aldehyde dehydrogenase 18 family member A1 Homo sapiens 134-175 11092761-1 2000 delta(1)-pyrroline-5-carboxylate synthase (P5CS), a bifunctional ATP- and NADPH-dependent mitochondrial enzyme, catalyzes the reduction of glutamate to delta(1)-pyrroline-5-carboxylate, a critical step in the biosynthesis of proline, ornithine and arginine. Ornithine 234-243 aldehyde dehydrogenase 18 family member A1 Homo sapiens 0-41 11092761-1 2000 delta(1)-pyrroline-5-carboxylate synthase (P5CS), a bifunctional ATP- and NADPH-dependent mitochondrial enzyme, catalyzes the reduction of glutamate to delta(1)-pyrroline-5-carboxylate, a critical step in the biosynthesis of proline, ornithine and arginine. Ornithine 234-243 aldehyde dehydrogenase 18 family member A1 Homo sapiens 43-47 11007319-0 2000 Ornithine metabolism along the female mouse nephron: localization of ornithine decarboxylase and ornithine aminotransferase. Ornithine 0-9 ornithine aminotransferase Mus musculus 97-123 11007319-2 2000 The aim of the present study was to identify the nephron segments containing the key enzymes involved in ornithine metabolism: ornithine decarboxylase (ODC) and ornithine aminotransferase (OAT). Ornithine 105-114 ornithine decarboxylase, structural 1 Mus musculus 127-150 11007319-2 2000 The aim of the present study was to identify the nephron segments containing the key enzymes involved in ornithine metabolism: ornithine decarboxylase (ODC) and ornithine aminotransferase (OAT). Ornithine 105-114 ornithine decarboxylase, structural 1 Mus musculus 152-155 11007319-2 2000 The aim of the present study was to identify the nephron segments containing the key enzymes involved in ornithine metabolism: ornithine decarboxylase (ODC) and ornithine aminotransferase (OAT). Ornithine 105-114 ornithine aminotransferase Mus musculus 161-187 10952667-2 2000 Since cNOS and arginase, which hydrolyzes L-arginine to L-ornithine and urea, use L-arginine as a common substrate, competition between both enzymes for the substrate could be involved in the regulation of cholinergic airway reactivity. Ornithine 56-67 nitric oxide synthase, endothelial Cavia porcellus 6-10 10913040-1 2000 This study was conducted to determine a role for cortisol in regulating intestinal ornithine decarboxylase (ODC) activity and to identify the metabolic sources of ornithine for intestinal polyamine synthesis in suckling pigs. Ornithine 83-92 ornithine decarboxylase 1 Sus scrofa 108-111 10865171-0 2000 Ornithine-containing lipids stimulate CD14-dependent TNF-alpha production from murine macrophage-like J774.1 and RAW 264.7 cells. Ornithine 0-9 CD14 antigen Mus musculus 38-42 10918219-2 2000 L-arginine is known to be metabolized by one of two pathways: nitric oxide synthase (NOS), producing nitric oxide (NO), or arginase, producing ornithine. Ornithine 143-152 nitric oxide synthase 2 Homo sapiens 62-83 10865172-0 2000 Modulation of chemotaxis, O(2)(-) production and myeloperoxidase release from human polymorphonuclear leukocytes by the ornithine-containing lipid and the serineglycine-containing lipid of Flavobacterium. Ornithine 120-129 myeloperoxidase Homo sapiens 49-64 10865171-0 2000 Ornithine-containing lipids stimulate CD14-dependent TNF-alpha production from murine macrophage-like J774.1 and RAW 264.7 cells. Ornithine 0-9 tumor necrosis factor Mus musculus 53-62 10935781-7 2000 More positive/less negative levels of alanine, aspartate, glutamine, glycine, ornithine, taurine and tyrosine were found in all the insulin-treated patients. Ornithine 78-87 insulin Homo sapiens 132-139 10843666-3 2000 In marked contrast, LPS stimulates Th2, but not Th1, macrophages to increase arginine metabolism to ornithine. Ornithine 100-109 heart and neural crest derivatives expressed 2 Mus musculus 35-38 10843666-5 2000 Because NO inhibits cell division, while ornithine can stimulate cell division (via polyamines), these results also indicate that M-1 and M-2 responses can influence inflammatory reactions in opposite ways. Ornithine 41-50 cholinergic receptor, muscarinic 2, cardiac Mus musculus 138-141 10715561-5 2000 The selective V(1) agonist [Phe(2), Ile(3), Orn(8)]-vasopressin caused a significant increase in filopodial length, whereas the selective V(2) agonist [deamino-Cys(1), D-Arg(8)]-vasopressin showed no such effect. Ornithine 44-47 arginine vasopressin Homo sapiens 52-63 10800966-3 2000 ADC decarboxylates both arginine (Km = 0.75 mM) and ornithine (Km = 0.25 mM), a reaction not inhibited by the specific ODC inhibitor, difluoromethylomithine. Ornithine 52-61 antizyme inhibitor 2 Rattus norvegicus 0-3 10623504-2 2000 Ornithine decarboxylase (ODC, EC 4.1.1.17) performs the first step in polyamine biosynthesis, the decarboxylation of ornithine to putrescine. Ornithine 117-126 ornithine decarboxylase 1 Homo sapiens 0-23 10655512-1 2000 Deficiency of ornithine-delta-aminotransferase (OAT) in humans results in gyrate atrophy of the choroid and retina (GA), an autosomal recessive disorder characterized by ornithine accumulation and a progressive chorioretinal degeneration of unknown pathogenesis. Ornithine 14-23 ornithine aminotransferase Mus musculus 48-51 10652239-2 2000 It is synthesized by the first four enzymes of the cycle, carbamylphosphate synthetase I, ornithine transcarbamylase, argininosuccinate synthetase, and argininosuccinate lyase, and is hydrolyzed to urea and ornithine by arginase I, forming the cycle. Ornithine 90-99 argininosuccinate lyase Rattus norvegicus 152-175 10623504-2 2000 Ornithine decarboxylase (ODC, EC 4.1.1.17) performs the first step in polyamine biosynthesis, the decarboxylation of ornithine to putrescine. Ornithine 117-126 ornithine decarboxylase 1 Homo sapiens 25-28 10037775-2 1999 Delta1-Pyrroline-5-carboxylate synthase (P5CS; EC not assigned), a mitochondrial inner membrane, ATP- and NADPH-dependent, bifunctional enzyme, catalyzes the reduction of glutamate to Delta1-pyrroline-5-carboxylate, a critical step in the de novo biosynthesis of proline and ornithine. Ornithine 275-284 aldehyde dehydrogenase 18 family member A1 Homo sapiens 0-39 11198268-1 2000 This study was performed to determine whether a single oral dose of ornithine (Orn), the substrate of ornithine decarboxylase (ODC), increases blood concentrations of polyamines premalignant stage, and whether blood polyamine levels could be used as predictive markers of cancer development. Ornithine 68-77 ornithine decarboxylase 1 Rattus norvegicus 102-125 11198268-1 2000 This study was performed to determine whether a single oral dose of ornithine (Orn), the substrate of ornithine decarboxylase (ODC), increases blood concentrations of polyamines premalignant stage, and whether blood polyamine levels could be used as predictive markers of cancer development. Ornithine 68-77 ornithine decarboxylase 1 Rattus norvegicus 127-130 11198268-1 2000 This study was performed to determine whether a single oral dose of ornithine (Orn), the substrate of ornithine decarboxylase (ODC), increases blood concentrations of polyamines premalignant stage, and whether blood polyamine levels could be used as predictive markers of cancer development. Ornithine 79-82 ornithine decarboxylase 1 Rattus norvegicus 102-125 11198268-1 2000 This study was performed to determine whether a single oral dose of ornithine (Orn), the substrate of ornithine decarboxylase (ODC), increases blood concentrations of polyamines premalignant stage, and whether blood polyamine levels could be used as predictive markers of cancer development. Ornithine 79-82 ornithine decarboxylase 1 Rattus norvegicus 127-130 10561504-2 1999 We report here the isolation of a T-DNA-tagged mutant displaying sensitivity to ornithine, whose characterization has allowed for the identification of several complementary and genomic DNA clones encoding the OTC and auxilin-like 1 (AUL1) proteins of the crucifer Arabidopsis thaliana. Ornithine 80-89 ornithine carbamoyltransferase Arabidopsis thaliana 210-213 10561504-2 1999 We report here the isolation of a T-DNA-tagged mutant displaying sensitivity to ornithine, whose characterization has allowed for the identification of several complementary and genomic DNA clones encoding the OTC and auxilin-like 1 (AUL1) proteins of the crucifer Arabidopsis thaliana. Ornithine 80-89 auxin-like 1 protein Arabidopsis thaliana 218-232 10561504-2 1999 We report here the isolation of a T-DNA-tagged mutant displaying sensitivity to ornithine, whose characterization has allowed for the identification of several complementary and genomic DNA clones encoding the OTC and auxilin-like 1 (AUL1) proteins of the crucifer Arabidopsis thaliana. Ornithine 80-89 auxin-like 1 protein Arabidopsis thaliana 234-238 10586514-3 1999 We have succeeded in converting S. ruminantium LDC to an enzyme with a preference in decarboxylating activity for L-ornithine when the four-residue of LDC were replaced by the corresponding residues of mouse ornithine decarboxylase (EC 4.1.1.17). Ornithine 114-125 ornithine decarboxylase, structural 1 Mus musculus 208-231 10479284-0 1999 5-deazafolate analogues with a rotationally restricted glutamate or ornithine side chain: synthesis and binding interaction with folylpolyglutamate synthetase. Ornithine 68-77 folylpolyglutamate synthase Homo sapiens 129-158 10387054-4 1999 However, LysRS possesses an efficient pre-transfer editing mechanism which prevents misacylation of tRNALys with ornithine. Ornithine 113-122 lysyl-tRNA synthetase 1 Homo sapiens 9-14 10369256-1 1999 Neurospora crassa ARG13 and Saccharomyces cerevisiae ARG11 encode mitochondrial carrier family (MCF) proteins that transport ornithine across the mitochondrial inner membrane. Ornithine 125-134 Ort1p Saccharomyces cerevisiae S288C 53-58 10369256-4 1999 ORNT1 expression restores ornithine metabolism in fibroblasts from patients with hyperammonaemia-hyperornithinaemia-homocitrullinuria (HHH) syndrome. Ornithine 26-35 solute carrier family 25 member 15 Homo sapiens 0-5 10502831-3 1999 In the OTC amino acid sequence, I172 and G197 are proximate to residues involved in catalysis, and G188 is within a loop joining helix 5 and strand 6 in the core of the ornithine-bindingdomain. Ornithine 169-178 ornithine transcarbamylase Homo sapiens 7-10 10037775-10 1999 We found that both confer P5CS activity and that the short isoform is inhibited by L-ornithine with a Ki of approximately 0.25 mM. Ornithine 83-94 aldehyde dehydrogenase 18 family member A1 Homo sapiens 26-30 10037775-12 1999 Thus, the two amino acid insert in the long isoform abolishes feedback inhibition of P5CS activity by L-ornithine. Ornithine 102-113 aldehyde dehydrogenase 18 family member A1 Homo sapiens 85-89 10037775-2 1999 Delta1-Pyrroline-5-carboxylate synthase (P5CS; EC not assigned), a mitochondrial inner membrane, ATP- and NADPH-dependent, bifunctional enzyme, catalyzes the reduction of glutamate to Delta1-pyrroline-5-carboxylate, a critical step in the de novo biosynthesis of proline and ornithine. Ornithine 275-284 aldehyde dehydrogenase 18 family member A1 Homo sapiens 41-45 10050048-1 1999 Arginase, which catalyzes the conversion of arginine to urea and ornithine, and consists of a liver-type (arginase I) and a non-hepatic type (arginase II). Ornithine 65-74 arginase 2 Rattus norvegicus 124-153 10050048-10 1999 The co-localization of arginase II and the three ornithine-utilizing enzymes in the small intestine suggests that the enzyme is involved in the synthesis of proline, polyamines, and/or citrulline in this tissue. Ornithine 49-58 arginase 2 Rattus norvegicus 23-34 9874237-1 1998 In this work we have characterised the transport of L-arginine and L-ornithine into mitochondria isolated from a wild-type Saccharomyces cerevisiae strain and an isogenic arg11 knock-out mutant. Ornithine 67-78 Ort1p Saccharomyces cerevisiae S288C 171-176 10668504-14 1999 They are synthesised from putrescine, which is a key regulatory molecule formed from ornithine by ornithine decarboxylase, a highly inducible and regulated enzyme. Ornithine 85-94 ornithine decarboxylase 1 Homo sapiens 98-121 10353628-8 1999 The cardiac ODC from controls as well as clenbuterol treated mice exhibited similar affinity (Km) for its substrate, ornithine, while maximum enzyme activity (Vmax) was about 14 fold higher in clenbuterol treated mouse heart than in the control. Ornithine 117-126 ornithine decarboxylase, structural 1 Mus musculus 12-15 9874237-8 1998 Evidence is presented here that the mitochondrial inner membrane contains an L-arginine and L-ornithine transporting system distinct from Arg11p, in keeping with the arginine leaky phenotype of arg11 knock-out mutants. Ornithine 92-103 Ort1p Saccharomyces cerevisiae S288C 194-199 9765281-0 1998 Hypoglycemia-associated hyperammonemia caused by impaired expression of ornithine cycle enzyme genes in C/EBPalpha knockout mice. Ornithine 72-81 CCAAT/enhancer binding protein (C/EBP), alpha Mus musculus 104-114 9765281-4 1998 Here we examined the expression of ornithine cycle enzyme genes in the livers of C/EBPalpha-deficient mice. Ornithine 35-44 CCAAT/enhancer binding protein (C/EBP), alpha Mus musculus 81-91 9765281-9 1998 Thus, C/EBPalpha is crucial for ammonia detoxification by ornithine cycle enzymes and for coordination of gluconeogenesis and urea synthesis. Ornithine 58-67 CCAAT/enhancer binding protein (C/EBP), alpha Mus musculus 6-16 9745037-1 1998 Mammals contain two genes encoding distinct isoforms of arginase (arginases I and II), both of which catalyze the conversion of arginine to ornithine and urea. Ornithine 140-149 arginase, liver Mus musculus 35-84 9874001-2 1998 It is synthesized from ornithine by argininosuccinate synthetase and argininosuccinate lyase and is degraded by arginase, which consists of a liver-type (arginase I) and a non-hepatic type (arginase II). Ornithine 23-32 arginase 2 Rattus norvegicus 172-201 9686762-2 1998 Since L-ornithine is metabolized to growth-stimulatory polyamines, we examined whether thrombin regulates the transcellular transport and metabolism of L-ornithine by vascular SMCs. Ornithine 152-163 coagulation factor II, thrombin Homo sapiens 87-95 9686762-3 1998 Treatment of SMCs with thrombin initially (0 to 2 hours) decreased L-ornithine uptake, whereas longer exposures (6 to 24 hours) progressively increased transport. Ornithine 67-78 coagulation factor II, thrombin Homo sapiens 23-31 9686762-7 1998 The stimulatory effect of thrombin on both L-ornithine transport and ODC activity was reversed by hirudin, a thrombin inhibitor, and was mimicked by a 14-amino acid thrombin receptor-activating peptide. Ornithine 43-54 coagulation factor II, thrombin Homo sapiens 109-117 9686762-4 1998 Kinetic studies indicated that thrombin-induced inhibition was associated with a decrease in affinity for L-ornithine, whereas stimulation was mediated by an increase in transport capacity. Ornithine 106-117 coagulation factor II, thrombin Homo sapiens 31-39 9686762-8 1998 Thrombin also markedly increased the capacity of SMCs to generate putrescine, a polyamine, from extracellular L-ornithine. Ornithine 110-121 coagulation factor II, thrombin Homo sapiens 0-8 9686762-6 1998 Furthermore, thrombin stimulated L-ornithine metabolism by inducing ornithine decarboxylase (ODC) mRNA expression and activity. Ornithine 33-44 coagulation factor II, thrombin Homo sapiens 13-21 9686762-12 1998 The ability of thrombin to upregulate L-ornithine transport and direct its metabolism to growth-stimulatory polyamines may contribute to postangioplasty restenosis and atherosclerotic lesion formation. Ornithine 38-49 coagulation factor II, thrombin Homo sapiens 15-23 9686762-6 1998 Furthermore, thrombin stimulated L-ornithine metabolism by inducing ornithine decarboxylase (ODC) mRNA expression and activity. Ornithine 33-44 ornithine decarboxylase 1 Homo sapiens 68-91 9686762-6 1998 Furthermore, thrombin stimulated L-ornithine metabolism by inducing ornithine decarboxylase (ODC) mRNA expression and activity. Ornithine 33-44 ornithine decarboxylase 1 Homo sapiens 93-96 9686762-7 1998 The stimulatory effect of thrombin on both L-ornithine transport and ODC activity was reversed by hirudin, a thrombin inhibitor, and was mimicked by a 14-amino acid thrombin receptor-activating peptide. Ornithine 43-54 coagulation factor II, thrombin Homo sapiens 26-34 9686762-7 1998 The stimulatory effect of thrombin on both L-ornithine transport and ODC activity was reversed by hirudin, a thrombin inhibitor, and was mimicked by a 14-amino acid thrombin receptor-activating peptide. Ornithine 43-54 coagulation factor II, thrombin Homo sapiens 109-117 9428669-2 1997 While forming ornithine, this enzyme regenerates acetylglutamate, also produced in the first step by the ARG2-encoded acetylglutamate synthase. Ornithine 14-23 acetyl-CoA:L-glutamate N-acetyltransferase Saccharomyces cerevisiae S288C 105-109 9657970-1 1998 Ornithine decarboxylase (ODC) catalyses the conversion of ornithine to putrescine, an obligate precursor to the polyamines spermidine and spermine. Ornithine 58-67 Ornithine decarboxylase Caenorhabditis elegans 0-23 9657970-1 1998 Ornithine decarboxylase (ODC) catalyses the conversion of ornithine to putrescine, an obligate precursor to the polyamines spermidine and spermine. Ornithine 58-67 Ornithine decarboxylase Caenorhabditis elegans 25-28 9734336-7 1998 The co-localization of CPS I and OCT and a high activity of OCT in enterocyte mitochondria favors the intestinal synthesis of citrulline from ammonia, HCO3- and ornithine. Ornithine 161-170 ornithine transcarbamylase Sus scrofa 33-36 9734336-7 1998 The co-localization of CPS I and OCT and a high activity of OCT in enterocyte mitochondria favors the intestinal synthesis of citrulline from ammonia, HCO3- and ornithine. Ornithine 161-170 ornithine transcarbamylase Sus scrofa 60-63 9468343-9 1998 After 4 days of treatment with 100 mM L-valine, L-ornithine flux through ornithine decarboxylase was significantly higher as well as putrescine and spermidine cellular uptakes in treated cells. Ornithine 48-59 ornithine decarboxylase 1 Homo sapiens 73-96 9719479-4 1998 L-ornithine, a substrate for ODC, retroinhibits arginase. Ornithine 0-11 ornithine decarboxylase 1 Homo sapiens 29-32 9719479-11 1998 The inhibitory effect of DFMO upon arginase, one step upstream of the ODC reaction in the metabolic conversion of L-arginine to polyamines, is of potential physiological importance, since it could alter the production of ornithine and thus its metabolism in pathways other than the ODC pathway. Ornithine 221-230 ornithine decarboxylase 1 Homo sapiens 70-73 9719479-11 1998 The inhibitory effect of DFMO upon arginase, one step upstream of the ODC reaction in the metabolic conversion of L-arginine to polyamines, is of potential physiological importance, since it could alter the production of ornithine and thus its metabolism in pathways other than the ODC pathway. Ornithine 221-230 ornithine decarboxylase 1 Homo sapiens 282-285 9514741-1 1998 Ornithine aminotransferase (OAT), a pyridoxal-5"-phosphate dependent enzyme, catalyses the transfer of the delta-amino group of L-ornithine to 2-oxoglutarate, producing L-glutamate-gamma-semialdehyde, which spontaneously cyclizes to pyrroline-5-carboxylate, and L-glutamate. Ornithine 128-139 ornithine aminotransferase Homo sapiens 0-26 9514741-1 1998 Ornithine aminotransferase (OAT), a pyridoxal-5"-phosphate dependent enzyme, catalyses the transfer of the delta-amino group of L-ornithine to 2-oxoglutarate, producing L-glutamate-gamma-semialdehyde, which spontaneously cyclizes to pyrroline-5-carboxylate, and L-glutamate. Ornithine 128-139 ornithine aminotransferase Homo sapiens 28-31 9480841-2 1998 Ornithine decarbolylase (ODC) catalyzes the first step of polyamine biosynthesis converting ornithine to putrescine. Ornithine 92-101 ornithine decarboxylase 1 Homo sapiens 0-23 9480841-2 1998 Ornithine decarbolylase (ODC) catalyzes the first step of polyamine biosynthesis converting ornithine to putrescine. Ornithine 92-101 ornithine decarboxylase 1 Homo sapiens 25-28 9428669-3 1997 Interestingly, total deletion of the genomic ARG7 ORF resulted in an arginine-leaky phenotype, indicating that yeast cells possess an alternative route for generating ornithine from acetylornithine. Ornithine 167-176 glutamate N-acetyltransferase Saccharomyces cerevisiae S288C 45-49 9428669-13 1997 As with several bacterial ornithine acetyltransferases, the activity of Arg7p was practically insensitive to arginine but strongly inhibited by ornithine, which behaved as a competitive inhibitor. Ornithine 26-35 glutamate N-acetyltransferase Saccharomyces cerevisiae S288C 72-77 9401045-0 1997 Regulation of ornithine utilization in Pseudomonas aeruginosa (PAO1) is mediated by a transcriptional regulator, OruR. Ornithine 14-23 ornithine utilization transcriptional regulator OruR Pseudomonas aeruginosa PAO1 113-117 9401045-8 1997 Definition of this oruR locus and its effects upon OAcT activity provide evidence that control of ornithine levels in P. aeruginosa may have a significant impact upon how the cell is able to monitor and regulate the use of arginine and glutamate as sources of either carbon or nitrogen. Ornithine 98-107 ornithine utilization transcriptional regulator OruR Pseudomonas aeruginosa PAO1 19-23 9415309-4 1997 This study was undertaken to determine the ornithine metabolizing capacity of epidermal keratinocytes expressing normal and superphysiologic amounts of OAT. Ornithine 43-52 ornithine aminotransferase Homo sapiens 152-155 9353942-9 1997 These data suggest that ORF3 encodes a protein involved in the biosynthesis of ornithine, a constituent of phaseolotoxin. Ornithine 79-88 hypothetical protein Escherichia coli 24-28 9415309-5 1997 The data show that overexpression of OAT in keratinocytes cultured from a gyrate atrophy patient restores ornithine metabolism and results in a rate of ornithine disappearance from the medium that is significantly higher than the rate of disappearance from the medium bathing normal keratinocytes. Ornithine 106-115 ornithine aminotransferase Homo sapiens 37-40 9415309-5 1997 The data show that overexpression of OAT in keratinocytes cultured from a gyrate atrophy patient restores ornithine metabolism and results in a rate of ornithine disappearance from the medium that is significantly higher than the rate of disappearance from the medium bathing normal keratinocytes. Ornithine 152-161 ornithine aminotransferase Homo sapiens 37-40 9415309-6 1997 In addition, OAT activity determined in soluble protein prepared from sonicates suggests that the capacity to maintain plasma ornithine within the normal range is contained within an accomplishable graft of keratinocytes overexpressing OAT. Ornithine 126-135 ornithine aminotransferase Homo sapiens 13-16 9237680-0 1997 Identification of the yeast ARG-11 gene as a mitochondrial ornithine carrier involved in arginine biosynthesis. Ornithine 59-68 Ort1p Saccharomyces cerevisiae S288C 28-34 9323687-10 1997 RESULTS: Both the enterocyte capacity to decarboxylate ornithine through ODC (measured in viable enterocytes) and ODC activity (measured in homogenates) were severely decreased in group ED. Ornithine 55-64 ornithine decarboxylase 1 Rattus norvegicus 73-76 9309222-1 1997 BACKGROUND: Ornithine aminotransferase (OAT) is a 45 kDa pyridoxal-5"-phosphate (PLP)-dependent enzyme that catalyzes the conversion of L-ornithine and 2-oxoglutarate to glutamate-delta-semialdehyde and glutamic acid, respectively. Ornithine 136-147 ornithine aminotransferase Homo sapiens 12-38 9309222-1 1997 BACKGROUND: Ornithine aminotransferase (OAT) is a 45 kDa pyridoxal-5"-phosphate (PLP)-dependent enzyme that catalyzes the conversion of L-ornithine and 2-oxoglutarate to glutamate-delta-semialdehyde and glutamic acid, respectively. Ornithine 136-147 ornithine aminotransferase Homo sapiens 40-43 9309222-2 1997 In humans, loss of OAT function causes an accumulation of ornithine that results in gyrate atrophy of the choroid and retina, a disease that progressively leads to blindness. Ornithine 58-67 ornithine aminotransferase Homo sapiens 19-22 9309222-3 1997 In an effort to learn more about the structural basis of this enzyme"s function, we have determined the X-ray structures of OAT in complex with two enzyme-activated suicide substrates: L-canaline, an ornithine analog, and gabaculine, an irreversible inhibitor of several related aminotransferases. Ornithine 200-209 ornithine aminotransferase Homo sapiens 124-127 9309222-7 1997 CONCLUSIONS: The OAT-L-canaline complex structure implicates Tyr55 and Arg180 as the residues involved in coordinating with the natural substrate ornithine during normal enzyme turnover. Ornithine 146-155 ornithine aminotransferase Homo sapiens 17-20 9124567-7 1997 Compared with control, cortisol administration increased 1) the activities of ASL and arginase and the production of CO(2), ornithine, and proline from arginine, and 2) P5C synthase activity and the formation of glutamate, alanine, aspartate, ornithine, citrulline, proline, and CO(2) from glutamine in enterocytes. Ornithine 124-133 argininosuccinate lyase Sus scrofa 78-81 9013625-2 1997 The gene for liver-type arginase, an ornithine cycle enzyme, is induced by glucocorticoids in a delayed secondary manner. Ornithine 37-46 arginase 1 Rattus norvegicus 13-32 9124321-4 1997 Transforming growth factor (TGF)-beta1 decreased IFN-gamma-stimulated NO synthase activity and produced a reciprocal increase in urea and ornithine release. Ornithine 138-147 transforming growth factor, beta 1 Mus musculus 0-38 9124321-7 1997 However, Cort inhibited NO synthase activity and increased ornithine release in MPEC exposed to IFN-gamma or LPS. Ornithine 59-68 cortistatin Mus musculus 9-13 9124321-7 1997 However, Cort inhibited NO synthase activity and increased ornithine release in MPEC exposed to IFN-gamma or LPS. Ornithine 59-68 interferon gamma Mus musculus 96-105 8798783-1 1996 Prototype strain MG409 (arg11-1) is a severe arginine bradytroph with greatly reduced ornithine and arginine pools, although all known enzymes required for arginine biosynthesis are functional. Ornithine 86-95 Ort1p Saccharomyces cerevisiae S288C 24-29 8911353-4 1996 RESULTS: The SLC3A1 gene has been shown to code for a protein that, when expressed in Xenopus oocytes, confers on these cells the ability to transport cystine, arginine, lysine and ornithine. Ornithine 181-190 solute carrier family 3 (amino acid transporter heavy chain), member 1 L homeolog Xenopus laevis 13-19 9016354-6 1997 The substitution of Arg2 or Arg4 in FRCRCFa with lysine or ornithine decreases the inhibitory potency by 5-12-fold, suggesting that both arginines are beneficial for inhibition. Ornithine 59-68 arginase 2 Homo sapiens 20-24 9131018-3 1996 Liver arginase (L-arginine ureahydrolase, A1) is the fifth enzyme of the cycle, catalyzing the hydrolysis of arginine to ornithine and urea within the cytosol. Ornithine 121-130 arginase 2 Homo sapiens 16-40 8798783-8 1996 As a working hypothesis, we propose that Arg11p participates in the export of matrix-made ornithine into the cytosol. Ornithine 90-99 Ort1p Saccharomyces cerevisiae S288C 41-47 8958187-8 1996 Current ornithine (Orn)-containing folate-based inhibitors of the enzyme responsible for their synthesis, folypolyglutamate synthetase (FPGS), are poorly transported, apparently because of interference by the protonated delta-amine. Ornithine 8-17 folylpolyglutamate synthase Homo sapiens 106-134 8778603-1 1996 BACKGROUND: Ornithine transcarbamylase is an X-linked mitochondrial enzyme that catalyzes the synthesis of citrulline from carbamoyl phosphate and ornithine. Ornithine 147-156 ornithine transcarbamylase Homo sapiens 12-38 8662668-11 1996 The capacity of PDGF to up-regulate the transport of L-ornithine by inducing the expression of the genes for CAT-1 and CAT-2B may modulate its mitogenic effect by providing SMC with the necessary intracellular precursor for polyamine biosynthesis. Ornithine 53-64 solute carrier family 7 member 1 Homo sapiens 109-114 8761662-5 1996 The phenotypic features for deficiency of P5CS include joint hyperlaxity, skin hyperelasticity, cataract and mental retardation with hyperammonemia and low plasma levels of proline, citrulline and ornithine. Ornithine 197-206 aldehyde dehydrogenase 18 family member A1 Homo sapiens 42-46 8958187-8 1996 Current ornithine (Orn)-containing folate-based inhibitors of the enzyme responsible for their synthesis, folypolyglutamate synthetase (FPGS), are poorly transported, apparently because of interference by the protonated delta-amine. Ornithine 8-17 folylpolyglutamate synthase Homo sapiens 136-140 8958187-8 1996 Current ornithine (Orn)-containing folate-based inhibitors of the enzyme responsible for their synthesis, folypolyglutamate synthetase (FPGS), are poorly transported, apparently because of interference by the protonated delta-amine. Ornithine 19-22 folylpolyglutamate synthase Homo sapiens 106-134 8958187-8 1996 Current ornithine (Orn)-containing folate-based inhibitors of the enzyme responsible for their synthesis, folypolyglutamate synthetase (FPGS), are poorly transported, apparently because of interference by the protonated delta-amine. Ornithine 19-22 folylpolyglutamate synthase Homo sapiens 136-140 8845305-0 1995 Exposure to ornithine results in excessive accumulation of putrescine and apoptotic cell death in ornithine decarboxylase overproducing mouse myeloma cells. Ornithine 12-21 ornithine decarboxylase, structural 1 Mus musculus 98-121 8983332-1 1996 Polyamines (PA) are derived from ornithine by the enzyme ornithine decarboxylase (ODC), which is activated very rapidly as acute and delayed responses to brain ischemia and trauma. Ornithine 33-42 ornithine decarboxylase 1 Rattus norvegicus 57-80 8983332-1 1996 Polyamines (PA) are derived from ornithine by the enzyme ornithine decarboxylase (ODC), which is activated very rapidly as acute and delayed responses to brain ischemia and trauma. Ornithine 33-42 ornithine decarboxylase 1 Rattus norvegicus 82-85 7780833-12 1995 The study showed testosterone-induced differential changes in the activity of two enzymes involved in ornithine biosynthesis and catabolism which accompanied ODC induction in female mouse kidney. Ornithine 102-111 ornithine decarboxylase, structural 1 Mus musculus 158-161 8544185-4 1995 The binding sites for carbamyl phosphate in both enzymes are similar and the ornithine binding site in ornithine transcarbamylase appears to be in the same location as the L-aspartate binding site in aspartate transcarbamylase, with negatively charged side chains replaced by positively charged residues. Ornithine 77-86 ornithine transcarbamylase Homo sapiens 103-129 7608905-4 1995 On the basis of molecular modeling with AMBER, we prepared the lactam cyclo-[D-Asp2,Dap5]Dyn A-(1-13)NH2 (1; Dap = alpha, beta-diaminopropionic acid) containing a four-atom bridge between positions 2 and 5 as a possible constraint compatible with an alpha-helix, along with the homologues with five-(2) and six-atom (3) bridges containing Dab (alpha, gamma-diaminobutyric acid) and Orn, respectively, in position 5. Ornithine 382-385 death-associated protein 1 Cavia porcellus 84-87 7608905-8 1995 Novel byproducts were also obtained from the cyclization reactions with HBTU (2-(1H-benzotriazol-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate) and characterized as [D-Asp2,X(Tmg)5]Dyn A-(1-13)NH2 (where X = Dap, Dab, or Orn and Tmg = tetramethylguanidinium). Ornithine 228-231 death-associated protein 1 Cavia porcellus 215-218 7792296-0 1995 Evidence for the role of pancreatic acinar cells in the production of ornithine and guanidinoacetic acid by L-arginine:glycine amidinotransferase. Ornithine 70-79 glycine amidinotransferase Rattus norvegicus 108-145 7792296-9 1995 Transamidinase activity in the isolated perfused pancreas was determined by measuring the amount of ornithine released into the perfusate. Ornithine 100-109 glycine amidinotransferase Rattus norvegicus 0-14 7792296-10 1995 The transamidinase activity of the perfused pancreas was 16.4 +/- 1.8 U/g pancreas and is an estimate of the physiological production capacity of the enzyme (270 +/- 29 nmol ornithine/min/g pancreas). Ornithine 174-183 glycine amidinotransferase Rattus norvegicus 4-18 7893672-0 1995 Kinetic and crystallographic studies of thrombin with Ac-(D)Phe-Pro-boroArg-OH and its lysine, amidine, homolysine, and ornithine analogs. Ornithine 120-129 coagulation factor II, thrombin Homo sapiens 40-48 7929349-2 1994 The structural basis of the multiple ligand specificity of the periplasmic lysine-, arginine-, ornithine-binding protein (LAO) was investigated by determining and analyzing the structures of the protein unliganded and liganded with each of the three high-affinity ligands (L-lysine, L-arginine, and L-ornithine) and with one low-affinity ligand (L-histidine). Ornithine 299-310 interleukin 4 induced 1 Homo sapiens 75-120 7929646-1 1994 Polyamines are derived from ornithine by the actions of ornithine decarboxylase (ODC), which is the rate-limiting step in this pathway. Ornithine 28-37 ornithine decarboxylase 1 Homo sapiens 56-79 7929646-1 1994 Polyamines are derived from ornithine by the actions of ornithine decarboxylase (ODC), which is the rate-limiting step in this pathway. Ornithine 28-37 ornithine decarboxylase 1 Homo sapiens 81-84 7929349-2 1994 The structural basis of the multiple ligand specificity of the periplasmic lysine-, arginine-, ornithine-binding protein (LAO) was investigated by determining and analyzing the structures of the protein unliganded and liganded with each of the three high-affinity ligands (L-lysine, L-arginine, and L-ornithine) and with one low-affinity ligand (L-histidine). Ornithine 299-310 interleukin 4 induced 1 Homo sapiens 122-125 7828023-1 1994 Ornithine transcarbamylase (OTC) is a mitochondrial enzyme which catalyzes the conversion of ornithine into citrulline. Ornithine 93-102 ornithine transcarbamylase Mus musculus 0-26 7828023-1 1994 Ornithine transcarbamylase (OTC) is a mitochondrial enzyme which catalyzes the conversion of ornithine into citrulline. Ornithine 93-102 ornithine transcarbamylase Mus musculus 28-31 7896732-1 1994 The gene for rat argininosuccinate lyase (AL), which catalyzes the last step of arginine biosynthesis, is expressed in many tissues, though its expression is much higher in the liver where the enzyme is involved in the ornithine cycle (urea cycle), and moderately higher in the kidney. Ornithine 219-228 argininosuccinate lyase Rattus norvegicus 17-40 7707692-3 1994 Selective inactivation of ornithine aminotransferase (OAT) by 5-fluoromethylornithine raises endogenous ornithine concentrations so that citrulline formation is effectively catalysed by the aberrant OCT, in spite of its low affinity for ornithine. Ornithine 26-35 ornithine transcarbamylase Homo sapiens 199-202 8186261-6 1994 When insulin and ornithine were administered together, even higher levels of intracellular putrescine and putrescine export were observed, with putrescine efflux proceeding over the 36 h time-course at the highest observed rates of 1.5 (0-12 h) and 1.0 (12-36 h) nmol/mg total protein per h. Exposure to DFMO, an inhibitor of ODC, depleted intracellular putrescine stores and effectively suppressed putrescine export. Ornithine 17-26 ornithine decarboxylase 1 Rattus norvegicus 326-329 8192245-6 1994 The coexpression of glutaminase, glutamate dehydrogenase, and carbamoylphosphate synthase, but not of arginase, in the mesonephros and the small intestine suggests that these organs are involved in the biosynthesis of intermediates of the ornithine cycle, e.g., arginine or citrulline. Ornithine 239-248 glutaminase Homo sapiens 20-56 7998343-0 1994 [Receptor selectivity profile of short enkephalin analogs containing D-ornithine at the second position of the molecule]. Ornithine 69-80 proenkephalin Rattus norvegicus 39-49 7998343-1 1994 The radioreceptor binding assay using a membrane fraction from the rat brain was applied to study binding activity and opiate receptor selectivity of truncated enkephalin analogs (with a free or modified C-terminal carboxyl group) bearing D-ornithine at the second position. Ornithine 239-250 proenkephalin Rattus norvegicus 160-170 7998343-5 1994 D-ornithine side chain prolongation by means of the attachment of some amino acid residues (methionine, leucine, proline, asparagine) led to the original branched enkephalin analogs. Ornithine 0-11 proenkephalin Rattus norvegicus 163-173 7948132-1 1994 Ornithine delta aminotransferase (OAT) is a nuclear-encoded mitochondrial matrix enzyme that catalyzes the reversible transamination of ornithine to glutamate semialdehyde. Ornithine 136-145 ornithine aminotransferase Homo sapiens 0-32 7948132-1 1994 Ornithine delta aminotransferase (OAT) is a nuclear-encoded mitochondrial matrix enzyme that catalyzes the reversible transamination of ornithine to glutamate semialdehyde. Ornithine 136-145 ornithine aminotransferase Homo sapiens 34-37 7707692-3 1994 Selective inactivation of ornithine aminotransferase (OAT) by 5-fluoromethylornithine raises endogenous ornithine concentrations so that citrulline formation is effectively catalysed by the aberrant OCT, in spite of its low affinity for ornithine. Ornithine 76-85 ornithine aminotransferase Mus musculus 26-52 7707692-3 1994 Selective inactivation of ornithine aminotransferase (OAT) by 5-fluoromethylornithine raises endogenous ornithine concentrations so that citrulline formation is effectively catalysed by the aberrant OCT, in spite of its low affinity for ornithine. Ornithine 76-85 ornithine transcarbamylase Homo sapiens 199-202 8281144-1 1993 Ornithine-delta-aminotransferase catalyzes the conversion of ornithine to glutamate-gamma-semialdehyde. Ornithine 61-70 ornithine aminotransferase Homo sapiens 0-32 8508705-4 1993 The response of microvillous enzymes (lactase, sucrase, maltase, and aminopeptidase) to spermine was dose-dependent and -specific since oral administration of arginine (5 mumol) or ornithine (5 mumol) was without effect. Ornithine 181-190 lactase Rattus norvegicus 38-45 8322890-13 1993 Thus Arg produced by PCT in both species is probably released in the cortical blood, whereas Arg produced in PST may serve locally to produce urea and ornithine, and the latter could be used for polyamine synthesis. Ornithine 151-160 sulfotransferase family 1A, phenol-preferring, member 1 Mus musculus 109-112 8457542-1 1993 A new photoreactive tritiated cholecystokinin (CCK) analogue was synthesized which contains the p-benzoylbenzoyl moiety linked to an ornithine residue at the N-terminus of the sulfated CCK octapeptide (CCK-8s). Ornithine 133-142 cholecystokinin Sus scrofa 47-50 8496174-2 1993 The gene for rat ornithine transcarbamylase (OTC), an ornithine cycle enzyme, is mainly expressed in the liver and is under the control of the promoter and the 11-kilobase upstream enhancer, both of which are liver-selective. Ornithine 17-26 ornithine transcarbamylase Rattus norvegicus 45-48 8457542-1 1993 A new photoreactive tritiated cholecystokinin (CCK) analogue was synthesized which contains the p-benzoylbenzoyl moiety linked to an ornithine residue at the N-terminus of the sulfated CCK octapeptide (CCK-8s). Ornithine 133-142 cholecystokinin Sus scrofa 185-188 8457542-1 1993 A new photoreactive tritiated cholecystokinin (CCK) analogue was synthesized which contains the p-benzoylbenzoyl moiety linked to an ornithine residue at the N-terminus of the sulfated CCK octapeptide (CCK-8s). Ornithine 133-142 cholecystokinin Sus scrofa 185-188 8495798-1 1993 Ornithine-delta-aminotransferase (OAT) catalyzes the reversible transamination of ornithine to glutamate semialdehyde. Ornithine 82-91 ornithine aminotransferase Homo sapiens 0-32 8462726-6 1993 Sulfhydryl compounds (dithiothreitol and glutathione) or quinone-reducing agents (ascorbic acid) prevented the inactivation of ODC; L-ornithine, but not other amino acids, also protected partially ODC. Ornithine 132-143 ornithine decarboxylase 1 Homo sapiens 127-130 8462726-6 1993 Sulfhydryl compounds (dithiothreitol and glutathione) or quinone-reducing agents (ascorbic acid) prevented the inactivation of ODC; L-ornithine, but not other amino acids, also protected partially ODC. Ornithine 132-143 ornithine decarboxylase 1 Homo sapiens 197-200 7682617-5 1993 Authentic NOHNMA, synthesized from L-ornithine, irreversibly inhibited both mNOS (k(inact) = 0.10 min-1) and bNOS in an NADPH-dependent reaction. Ornithine 35-46 nitric oxide synthase 1, neuronal Mus musculus 109-113 8462122-2 1993 The compounds competed with ornithine for the substrate binding site of ODC, but resulted in progressive and apparently irreversible inactivation of the enzyme. Ornithine 28-37 ornithine decarboxylase 1 Homo sapiens 72-75 8495798-1 1993 Ornithine-delta-aminotransferase (OAT) catalyzes the reversible transamination of ornithine to glutamate semialdehyde. Ornithine 82-91 ornithine aminotransferase Homo sapiens 34-37 1486085-2 1992 We report the case of an 18-year-old female who presented with the typical features of HOGA, including posterior subcapsular cataracts and elevated plasma ornithine. Ornithine 155-164 ornithine aminotransferase Homo sapiens 87-91 1483266-1 1992 The increase in ODC activity during perifusion of Ehrlich carcinoma cells with 0.5 mM ornithine correlates with an increase in "de novo" synthetized ODC protein. Ornithine 86-95 ornithine decarboxylase, structural 1 Mus musculus 16-19 1483266-1 1992 The increase in ODC activity during perifusion of Ehrlich carcinoma cells with 0.5 mM ornithine correlates with an increase in "de novo" synthetized ODC protein. Ornithine 86-95 ornithine decarboxylase, structural 1 Mus musculus 149-152 20732162-2 1992 The activity of ODC was measured partially in situ by an assay method using (3)H-labelled ornithine and analysing of the labelled putrescine formed. Ornithine 90-99 ornithine decarboxylase 1 Rattus norvegicus 16-19 1472981-0 1992 Ornithine and histidine decarboxylase activities in mice sensitized to endotoxin, interleukin-1 or tumour necrosis factor by D-galactosamine. Ornithine 0-9 interleukin 1 complex Mus musculus 82-95 1472981-0 1992 Ornithine and histidine decarboxylase activities in mice sensitized to endotoxin, interleukin-1 or tumour necrosis factor by D-galactosamine. Ornithine 0-9 tumor necrosis factor Mus musculus 99-121 1535833-1 1992 Previously we reported that 10 mM ornithine (Orn) selectively inhibits the development of CD8+ CTL in MLC. Ornithine 34-43 CD8a molecule Homo sapiens 90-93 1299499-2 1992 Three female and nine male bodybuilders served as subjects in a study to test the effectiveness of oral ornithine in bringing about the release of insulin, an anabolic hormone. Ornithine 104-113 insulin Homo sapiens 147-154 1535833-1 1992 Previously we reported that 10 mM ornithine (Orn) selectively inhibits the development of CD8+ CTL in MLC. Ornithine 34-43 modulator of VRAC current 1 Homo sapiens 102-105 1535833-1 1992 Previously we reported that 10 mM ornithine (Orn) selectively inhibits the development of CD8+ CTL in MLC. Ornithine 45-48 CD8a molecule Homo sapiens 90-93 1535833-1 1992 Previously we reported that 10 mM ornithine (Orn) selectively inhibits the development of CD8+ CTL in MLC. Ornithine 45-48 modulator of VRAC current 1 Homo sapiens 102-105 1376926-8 1992 (iii) The stimulation of sodium-independent uptake of L-arginine and the stimulation of sodium-dependent uptake of L-leucine induced by injection of 4F2hc cRNA are both completely inhibited by dibasic L amino acids and to a lesser extent by D-ornithine. Ornithine 241-252 solute carrier family 3 member 2 Homo sapiens 149-154 1311296-11 1992 It is concluded that the ArcD protein is a transport system that catalyzes an electroneutral exchange between arginine and ornithine to allow high-efficiency energy conversion in the arginine deiminase pathway. Ornithine 123-132 hypothetical protein Escherichia coli 25-29 1743613-3 1991 Cells released from the hydroxyurea induced synchrony exhibited an increased rate of [3H] leucine incorporation in response to prolactin when ornithine, putrescine, or spermidine were present. Ornithine 142-151 prolactin Homo sapiens 127-136 1540132-5 1992 (1) The apparent Km values of matrix OCT for carbamoyl phosphate and ornithine are respectively 8 and 2 times those measured for the soluble enzyme. Ornithine 69-78 ornithine transcarbamylase Rattus norvegicus 37-40 1939349-2 1991 The initial step in polyamine biosynthesis normally involves the decarboxylation of ornithine by the enzyme ornithine decarboxylase (ODCase E.C. Ornithine 84-93 ornithine decarboxylase 1 Rattus norvegicus 108-131 1939349-14 1991 In a manner identical to the serum-containing cultures (Wu and Byus (1984] the addition of TPA and exogenous ornithine to the serum-free cells caused a dose-dependent increase in intracellular putrescine (up to 5-fold) and a concomitant decrease in ODC activity in comparison to stimulation with TPA alone. Ornithine 109-118 ornithine decarboxylase 1 Rattus norvegicus 249-252 1737786-2 1992 Ornithine delta-aminotransferase is a nuclear-encoded mitochondrial matrix enzyme which catalyzes the reversible interconversion of ornithine and alpha-ketoglutarate to glutamate semialdehyde and glutamate. Ornithine 132-141 ornithine aminotransferase Homo sapiens 0-32 1872891-5 1991 On the contrary, N-acetylation paralleled with a decrease in the inhibition capacity: 55 microM N-acetyl putrescine, N-acetyl serotonin or N-omega-acetylhistamine suppressed ODC induction by ornithine in 66, 64 and 19%, respectively. Ornithine 191-200 ornithine decarboxylase, structural 1 Mus musculus 174-177 1911530-3 1991 In view of the physiological importance of ornithine and putrescine, we now investigated whether interferon-gamma (IFN-gamma), a principal stimulator of the OAD activity, may lead to the accumulation of the deiminated derivative citrulline at the expense of ornithine production, or whether the carbon backbone could be reutilized for the production of arginine and ornithine. Ornithine 258-267 interferon gamma Mus musculus 97-113 1872891-1 1991 Ornithine decarboxylase (ODC) activity of Ehrlich carcinoma cells was increased more than 36-fold after being maintained for 3.5 hr in vitro in a special chamber which allowed continuous perifusion with 0.5 mM ornithine; if incubated in vitro without perifusion the ODC activity was, of course, only 9-fold by the same concentration of ornithine. Ornithine 210-219 ornithine decarboxylase, structural 1 Mus musculus 0-23 1872891-1 1991 Ornithine decarboxylase (ODC) activity of Ehrlich carcinoma cells was increased more than 36-fold after being maintained for 3.5 hr in vitro in a special chamber which allowed continuous perifusion with 0.5 mM ornithine; if incubated in vitro without perifusion the ODC activity was, of course, only 9-fold by the same concentration of ornithine. Ornithine 210-219 ornithine decarboxylase, structural 1 Mus musculus 25-28 1872891-1 1991 Ornithine decarboxylase (ODC) activity of Ehrlich carcinoma cells was increased more than 36-fold after being maintained for 3.5 hr in vitro in a special chamber which allowed continuous perifusion with 0.5 mM ornithine; if incubated in vitro without perifusion the ODC activity was, of course, only 9-fold by the same concentration of ornithine. Ornithine 336-345 ornithine decarboxylase, structural 1 Mus musculus 0-23 1872891-1 1991 Ornithine decarboxylase (ODC) activity of Ehrlich carcinoma cells was increased more than 36-fold after being maintained for 3.5 hr in vitro in a special chamber which allowed continuous perifusion with 0.5 mM ornithine; if incubated in vitro without perifusion the ODC activity was, of course, only 9-fold by the same concentration of ornithine. Ornithine 336-345 ornithine decarboxylase, structural 1 Mus musculus 25-28 1872891-3 1991 The 1,4-diamines putrescine, spermidine, spermine, agmatine, histamine, serotonin, tryptamine, chlorpheniramine and harmaline at 55 microM strongly suppressed ODC induction by 0.5 mM ornithine in perifused Ehrlich ascites cells. Ornithine 183-192 ornithine decarboxylase, structural 1 Mus musculus 159-162 1903327-2 1991 The highly inducible enzyme ornithine decarboxylase (ODC) catalyzes the conversion of ornithine to putrescine as the initial step in polyamine biosynthesis. Ornithine 28-37 ornithine decarboxylase, structural 1 Mus musculus 53-56 1903327-3 1991 The level of substrate pools of ornithine in cultured cells has been reported to markedly alter mitogen-induced ODC activity, putrescine accumulation, and DNA synthesis (V. Wu and C. V. Byus, Biochim. Ornithine 32-41 ornithine decarboxylase, structural 1 Mus musculus 112-115 1911530-0 1991 Production of citrulline and ornithine by interferon-gamma treated macrophages. Ornithine 29-38 interferon gamma Mus musculus 42-58 1911530-3 1991 In view of the physiological importance of ornithine and putrescine, we now investigated whether interferon-gamma (IFN-gamma), a principal stimulator of the OAD activity, may lead to the accumulation of the deiminated derivative citrulline at the expense of ornithine production, or whether the carbon backbone could be reutilized for the production of arginine and ornithine. Ornithine 258-267 interferon gamma Mus musculus 115-124 1911530-3 1991 In view of the physiological importance of ornithine and putrescine, we now investigated whether interferon-gamma (IFN-gamma), a principal stimulator of the OAD activity, may lead to the accumulation of the deiminated derivative citrulline at the expense of ornithine production, or whether the carbon backbone could be reutilized for the production of arginine and ornithine. Ornithine 258-267 interferon gamma Mus musculus 97-113 1911530-7 1991 In the absence of IFN-gamma, TNF and LPS stimulate the conversion of arginine into ornithine but not citrulline. Ornithine 83-92 tumor necrosis factor Mus musculus 29-32 1911530-3 1991 In view of the physiological importance of ornithine and putrescine, we now investigated whether interferon-gamma (IFN-gamma), a principal stimulator of the OAD activity, may lead to the accumulation of the deiminated derivative citrulline at the expense of ornithine production, or whether the carbon backbone could be reutilized for the production of arginine and ornithine. Ornithine 258-267 interferon gamma Mus musculus 115-124 1911530-8 1991 However, when TNF or LPS stimulated macrophages are simultaneously treated with IFN-gamma, ornithine production is relatively inhibited by the strong OAD reaction that competes with the ASE reaction for its substrate L-arginine. Ornithine 91-100 tumor necrosis factor Mus musculus 14-17 1911530-8 1991 However, when TNF or LPS stimulated macrophages are simultaneously treated with IFN-gamma, ornithine production is relatively inhibited by the strong OAD reaction that competes with the ASE reaction for its substrate L-arginine. Ornithine 91-100 interferon gamma Mus musculus 80-89 1911530-9 1991 IFN-gamma thus down-regulates the availability of ornithine and putrescine. Ornithine 50-59 interferon gamma Mus musculus 0-9 1899361-1 1991 The selective inhibition of murine cytotoxic T lymphocyte (CTL) differentiation in C57B1/6 (B6) anti-DBA/2 mixed leukocyte cultures (MLC) by the amino acid L-ornithine (Orn) could not be reversed by addition of up to 1000 U/ml IL-2. Ornithine 169-172 complement component 6 Mus musculus 83-94 2017155-4 1991 In contrast, ornithine, putrescine, spermidine, and spermine, at concentrations with effects on resorption comparable to those of DFMO, inhibited the effects of calcitriol on both calcium and beta-glucuronidase release. Ornithine 13-22 glucuronidase, beta Mus musculus 192-210 1899361-2 1991 Analysis of the effects of Orn on induction of lymphokine-activated killer (LAK cells), using dosages of IL-2 from 10-1000 U/ml and measuring cytolytic activity against two tumor targets (P815 and YAC-1) over the course of 5 days, indicated that LAK cells were not suppressed by Orn. Ornithine 27-30 alpha-kinase 1 Mus musculus 76-79 2085183-3 1990 The use of ornithine as a marker of biological activity of ASase is related to the fact that in the urea cycle, the specific activity of arginase is much higher than that of ASase; thus, during in vitro determinations, arginine, which is the product of ASase, is rapidly converted to ornithine. Ornithine 11-20 adenylosuccinate lyase Homo sapiens 59-64 1982050-1 1990 Low paradoxically low answer of growth hormone to stimulation with ornithine]. Ornithine 67-76 growth hormone 1 Homo sapiens 32-46 1959325-8 1991 Frog ODC was found to be similar to mouse enzyme in some properties, for example molecular weight, immunoreactivity and inhibition by rat antizyme, except for a slightly higher Km value for ornithine. Ornithine 190-199 ornithine decarboxylase, structural 1 Mus musculus 5-8 2148056-8 1990 Additional experiments determined whether increased lung polyamine contents could be ascribed to elevated activity of ornithine decarboxylase (ODC), the rate-limiting enzyme in conversion of ornithine to putrescine. Ornithine 118-127 ornithine decarboxylase 1 Rattus norvegicus 143-146 2085183-3 1990 The use of ornithine as a marker of biological activity of ASase is related to the fact that in the urea cycle, the specific activity of arginase is much higher than that of ASase; thus, during in vitro determinations, arginine, which is the product of ASase, is rapidly converted to ornithine. Ornithine 11-20 adenylosuccinate lyase Homo sapiens 174-179 2085183-3 1990 The use of ornithine as a marker of biological activity of ASase is related to the fact that in the urea cycle, the specific activity of arginase is much higher than that of ASase; thus, during in vitro determinations, arginine, which is the product of ASase, is rapidly converted to ornithine. Ornithine 11-20 adenylosuccinate lyase Homo sapiens 174-179 2085183-3 1990 The use of ornithine as a marker of biological activity of ASase is related to the fact that in the urea cycle, the specific activity of arginase is much higher than that of ASase; thus, during in vitro determinations, arginine, which is the product of ASase, is rapidly converted to ornithine. Ornithine 284-293 adenylosuccinate lyase Homo sapiens 59-64 2261441-2 1990 It is shown that the cationic oligopeptides octadeca(L-lysine) (Lys18) and octadeca(L-ornithine) (Orn18) can induce a parallel duplex for the natural DNA oligomer dT10 with thymine-thymine base pairs. Ornithine 84-95 Actin 57B Drosophila melanogaster 163-167 1701834-9 1990 Moreover, the tetrapeptide Boc-Trp-Orn(Boc)-Asp-Phe-NH2 behaved as a partial agonist and analogues in which the Z or Boc groups on the ornithine residue were removed were full agonists. Ornithine 135-144 brother of CDO Cavia porcellus 27-30 1701834-9 1990 Moreover, the tetrapeptide Boc-Trp-Orn(Boc)-Asp-Phe-NH2 behaved as a partial agonist and analogues in which the Z or Boc groups on the ornithine residue were removed were full agonists. Ornithine 135-144 brother of CDO Cavia porcellus 39-42 1701834-9 1990 Moreover, the tetrapeptide Boc-Trp-Orn(Boc)-Asp-Phe-NH2 behaved as a partial agonist and analogues in which the Z or Boc groups on the ornithine residue were removed were full agonists. Ornithine 135-144 brother of CDO Cavia porcellus 39-42 2241895-2 1990 Unlike previously described ornithine decarboxylases, the enzyme activity is membrane-associated and remains in the membrane fraction after treatment with high salt, detergents or phosphatidylinositol-specific phospholipase C. Ornithine has an apparent Km value of 2.7 microM for ornithine decarboxylase. Ornithine 227-236 Ornithine decarboxylase Caenorhabditis elegans 28-51 2235124-7 1990 Ornithine decarboxylase activity was undetectable in the intestine of the mouse during the suckling period and was detected briefly at weaning, indicating that ornithine synthesized in the intestinal mitochondria is probably not diverted actively into the polyamine pathway and is available for synthesis of arginine by the enzymes of the urea cycle. Ornithine 160-169 ornithine decarboxylase, structural 1 Mus musculus 0-23 2372929-6 1990 Thus, impaired mitochondrial ornithine transport seemed to cause hyperammonemia in the state of partial quantitative deficiency of OCT in this case. Ornithine 29-38 ornithine transcarbamylase Homo sapiens 131-134 2383423-7 1990 We conclude that in mitochondrial citrulline synthesis the rate of carbamylphosphate synthesis by CPS in the presence of NAG plays a key role in determining the rate of citrulline synthesis and ornithine dependency. Ornithine 194-203 neuroblastoma amplified sequence Mus musculus 121-124 2391235-0 1990 Ornithine carbamoyltransferase from Selachii: effects of the buffer system and the ornithine concentration on the pH-activity profile. Ornithine 83-92 ornithine transcarbamylase Homo sapiens 0-30 2372929-0 1990 Hyperammonemia caused by impaired mitochondrial ornithine transport in a patient with partial quantitative deficiency of ornithine carbamoyltransferase. Ornithine 48-57 ornithine transcarbamylase Homo sapiens 121-151 2293029-12 1990 The Sertoli cell, unlike any other cell, secretes putrescine, the product of ODC catalysis of ornithine. Ornithine 94-103 ornithine decarboxylase 1 Rattus norvegicus 77-80 2317797-7 1990 Enzyme kinetic data indicated that the multiple forms of ODC can have different affinities for L-ornithine and that GTP can "normalize" the aberrant kinetic properties of these forms. Ornithine 95-106 ornithine decarboxylase 1 Homo sapiens 57-60 34780773-1 2022 Arginase 1 (A1) is the enzyme that hydrolyzes the amino acid, L-arginine, to ornithine and urea. Ornithine 77-86 arginase, liver Mus musculus 0-10 2158926-8 1990 Since anaerobic arginine consumption and ornithine release are coupled in P. aeruginosa, it is proposed that arcD specifies an arginine: ornithine antiporter or a part thereof. Ornithine 41-50 hypothetical protein Escherichia coli 109-113 2158926-8 1990 Since anaerobic arginine consumption and ornithine release are coupled in P. aeruginosa, it is proposed that arcD specifies an arginine: ornithine antiporter or a part thereof. Ornithine 137-146 hypothetical protein Escherichia coli 109-113 2302717-7 1990 The 3- and 24-h ODC activities have similar apparent Kms for ornithine (34 and 50 microM, respectively), and thermal stabilities at 52 degrees C (t1/2 = 23 and 18 min, respectively), and exhibit similar half-lives in vivo (t1/2 = 15 and 18 min, respectively). Ornithine 61-70 ornithine decarboxylase, structural 1 Mus musculus 16-19 2119573-3 1990 The arginase activity of mLIP was identified by determining the arginine degradation products, urea (by alpha-diketone-urea complex formation) and ornithine (by HPLC). Ornithine 147-156 CCAAT/enhancer binding protein (C/EBP), beta Mus musculus 25-29 32798076-1 2021 BACKGROUND: The ALDH18A1 gene is located at 10q24.1 and encodes delta-1-pyrroline-5-carboxylate synthetase (P5CS), a mitochondrial bifunctional enzyme that catalyzes the first two steps in de novo biosynthesis of proline, ornithine, citrulline, and arginine. Ornithine 222-231 aldehyde dehydrogenase 18 family member A1 Homo sapiens 16-24 32798076-1 2021 BACKGROUND: The ALDH18A1 gene is located at 10q24.1 and encodes delta-1-pyrroline-5-carboxylate synthetase (P5CS), a mitochondrial bifunctional enzyme that catalyzes the first two steps in de novo biosynthesis of proline, ornithine, citrulline, and arginine. Ornithine 222-231 aldehyde dehydrogenase 18 family member A1 Homo sapiens 64-106 32798076-1 2021 BACKGROUND: The ALDH18A1 gene is located at 10q24.1 and encodes delta-1-pyrroline-5-carboxylate synthetase (P5CS), a mitochondrial bifunctional enzyme that catalyzes the first two steps in de novo biosynthesis of proline, ornithine, citrulline, and arginine. Ornithine 222-231 aldehyde dehydrogenase 18 family member A1 Homo sapiens 108-112 34662447-6 2022 RESULTS: The Pten-KO prostate increased purine nucleotide pools, cystathionine, and both reduced and oxidized glutathione (GSH, GSSG), and gluconate/glucuronate species in addition to cholesteryl sulfate and polyamine precursor ornithine. Ornithine 228-237 phosphatase and tensin homolog Mus musculus 13-17 34871830-5 2022 AtNATA1 was previously shown to be specific for 1,3-diaminopropane, ornithine, putrescine and thialysine, rather than Spm and spermidine. Ornithine 68-77 Acyl-CoA N-acyltransferases (NAT) superfamily protein Arabidopsis thaliana 0-7 34943229-14 2021 The review also discusses the role of interconversion of proline/glutamate/ornithine in supporting proline to PRODH/POX-dependent functions. Ornithine 75-84 proline dehydrogenase 1 Homo sapiens 110-115 34943588-1 2021 Arginase-1 catalyzes the conversion of arginine to ornithine and urea. Ornithine 51-60 arginase 1 Homo sapiens 0-10 34935905-6 2022 Given that ODC is highly expressed in the ovaries during ovulation but otherwise exhibits low activity in most tissues, we hypothesized that periovulatory supplementation of L-ornithine, the substrate of ODC, might be suitable for delivering putrescine specifically to the ovaries. Ornithine 174-185 ornithine decarboxylase 1 Homo sapiens 204-207 34796899-4 2021 A previous crystal structure of an ODC-APA complex indicated that APA non-covalently binds ODC and its cofactor pyridoxal 5-phosphate (PLP) and functions by competing with the ODC substrate ornithine for binding to the catalytic site. Ornithine 190-199 ornithine decarboxylase 1 Homo sapiens 35-38 34796899-4 2021 A previous crystal structure of an ODC-APA complex indicated that APA non-covalently binds ODC and its cofactor pyridoxal 5-phosphate (PLP) and functions by competing with the ODC substrate ornithine for binding to the catalytic site. Ornithine 190-199 ornithine decarboxylase 1 Homo sapiens 91-94 34796899-4 2021 A previous crystal structure of an ODC-APA complex indicated that APA non-covalently binds ODC and its cofactor pyridoxal 5-phosphate (PLP) and functions by competing with the ODC substrate ornithine for binding to the catalytic site. Ornithine 190-199 ornithine decarboxylase 1 Homo sapiens 176-179 34943229-14 2021 The review also discusses the role of interconversion of proline/glutamate/ornithine in supporting proline to PRODH/POX-dependent functions. Ornithine 75-84 proline dehydrogenase 1 Homo sapiens 116-119 34703912-3 2021 Twenty-four pigs were randomly divided into 4 groups, exposed to 0, 10, 25 or 35 mg/m3 ammonia respectively for 25 d. After above 25 mg/m3 ammonia exposure, decreased aspartate (P = 0.016), glutamate (P = 0.030) and increased ornithine (P = 0.002) were found in the ammonia-removing liver, and after high ammonia (35 mg/m3) exposure, glutamine synthetase (GS) expression was increased (P = 0.012). Ornithine 226-235 glutamate-ammonia ligase Sus scrofa 356-358 34811637-10 2022 The relative concentrations of ornithine and argininosuccinate, which are urea cycle intermediates, were also decreased in the Ctrp3 KO liver. Ornithine 31-40 C1q and tumor necrosis factor related protein 3 Mus musculus 127-132 34402126-6 2021 Of the 361 compounds detected in the liver, 41 compounds, including amino acids related to the Cit-arginine (Arg) cycle, argininosuccinic acid, Arg, ornithine, and Cit, as well as gamma aminobutyric acid, glycine, histidine, and nicotinamide adenine dinucleotide were abundant in l-Cit-treated livers. Ornithine 149-158 citron rho-interacting serine/threonine kinase Homo sapiens 282-285 34867480-1 2021 The ureohydrolase, type-II arginase (Arg-II), is a mitochondrial enzyme metabolizing L-arginine into urea and L-ornithine and is highly expressed in renal proximal tubular cells (PTC) and upregulated by renal ischemia. Ornithine 110-121 arginase type II Mus musculus 19-35 34599427-0 2022 Arginase-1 Released into CSF After Aneurysmal Subarachnoid Hemorrhage Decreases Arginine/Ornithine Ratio: a Novel Prognostic Biomarker. Ornithine 89-98 arginase 1 Homo sapiens 0-10 34778380-2 2021 Arg acts as the mediator of the last step of the urea cycle, thus providing protection against excessive ammonia under homeostatic conditions through the production of L-ornithine and urea. Ornithine 168-179 ABL proto-oncogene 2, non-receptor tyrosine kinase Homo sapiens 0-3 34778380-3 2021 L-ornithine represents the intersection point between the ARG-dependent pathways and the urea cycle, therefore contributing to cell detoxification, proliferation and collagen production. Ornithine 0-11 ABL proto-oncogene 2, non-receptor tyrosine kinase Homo sapiens 58-61 34836006-7 2021 Antagonists of G-protein-coupled receptor family C group 6 subtype A (GPRC6A) abolished the additive effect of ornithine on MSG solutions. Ornithine 111-120 G protein-coupled receptor, family C, group 6, member A Mus musculus 70-76 34613458-1 2021 Polyamines (putrescine, spermidine, and spermine) are synthesized primarily from ornithine via ornithine decarboxylase (ODC) in mammals. Ornithine 81-90 ornithine decarboxylase Gallus gallus 95-118 34613458-1 2021 Polyamines (putrescine, spermidine, and spermine) are synthesized primarily from ornithine via ornithine decarboxylase (ODC) in mammals. Ornithine 81-90 ornithine decarboxylase Gallus gallus 120-123 34769188-3 2021 One of the important mediators in energy production and interconversion of carbons in the cell is Delta1-pyrroline-5-carboxylate (P5C)-the physiological intracellular intermediate of the interconversion of proline, ornithine, and glutamate. Ornithine 215-224 pyrroline-5-carboxylate reductase 1 Homo sapiens 104-128 34769188-3 2021 One of the important mediators in energy production and interconversion of carbons in the cell is Delta1-pyrroline-5-carboxylate (P5C)-the physiological intracellular intermediate of the interconversion of proline, ornithine, and glutamate. Ornithine 215-224 pyrroline-5-carboxylate reductase 1 Homo sapiens 130-133 34769188-6 2021 P5C is produced by P5C synthase (P5CS) from glutamate, and ornithine via ornithine delta-amino acid transferase (deltaOAT). Ornithine 59-68 pyrroline-5-carboxylate reductase 1 Homo sapiens 0-3 34769188-12 2021 This review focuses on the metabolism of P5C in the cell as an interconversion mediator of proline, glutamate, and ornithine and its role in the regulation of survival and death with particular emphasis on the metabolic context. Ornithine 115-124 pyrroline-5-carboxylate reductase 1 Homo sapiens 41-44 34599427-9 2022 The well-known surrogate parameter for arginase acitivity, the L-arginine to L-ornithine ratio (Arg/Orn), correlated with CSF arginase-1 levels. Ornithine 77-88 arginase 1 Homo sapiens 126-136 34560100-7 2021 We also note a correlation between the presence of ancestral ODC and ornithine/arginine auxotrophy, and link this with a known symbiotic dependence on exogenous ornithine produced by species using the arginine deiminase system. Ornithine 69-78 ornithine decarboxylase 1 Homo sapiens 61-64 34560100-7 2021 We also note a correlation between the presence of ancestral ODC and ornithine/arginine auxotrophy, and link this with a known symbiotic dependence on exogenous ornithine produced by species using the arginine deiminase system. Ornithine 161-170 ornithine decarboxylase 1 Homo sapiens 61-64 34278273-5 2021 Metabolomic analysis revealed that amino acid starvation induces a defect in the urea cycle, decreasing ornithine, a major intermediate, and supplementation of ornithine in an amino-acid-depleted medium fully rescued G6Pase mRNA transcription, similar to the effects of amino acid stimulation. Ornithine 160-169 glucose-6-phosphatase catalytic subunit 1 Homo sapiens 217-223 34559624-8 2021 The peptidoglycan type of the isolate was A4beta with an interpeptide bridge comprising l-ornithine and d-glutamic acid. Ornithine 88-99 immunoglobulin kappa variable 1D-27 (pseudogene) Homo sapiens 42-48 34340878-2 2021 GACR is characterised by vision decline in early life eventually leading to complete blindness, and high plasma ornithine levels. Ornithine 112-121 ornithine aminotransferase Homo sapiens 0-4 34326456-1 2021 Human Arginase 1 (hArg1) is a metalloenzyme that catalyzes the hydrolysis of L-arginine to L-ornithine and urea, and modulates T-cell-mediated immune response. Ornithine 91-102 arginase 1 Homo sapiens 6-16 34326456-1 2021 Human Arginase 1 (hArg1) is a metalloenzyme that catalyzes the hydrolysis of L-arginine to L-ornithine and urea, and modulates T-cell-mediated immune response. Ornithine 91-102 arginase 1 Homo sapiens 18-23 34281196-11 2021 A reduction of 5-oxoproline and ornithine metabolites that are involved in proline synthesis in mitochondria and affect abiotic stresses was also observed in the mfdx1-1 mutant. Ornithine 32-41 mitochondrial ferredoxin 1 Arabidopsis thaliana 162-167 34472307-1 2021 Ornithine decarboxylase (ODC) is a key enzyme in the biosynthetic pathway of polyamines and catalyzes the decarboxylation of ornithine to produce putrescine. Ornithine 125-134 ornithine decarboxylase 1 Homo sapiens 0-23 34472307-1 2021 Ornithine decarboxylase (ODC) is a key enzyme in the biosynthetic pathway of polyamines and catalyzes the decarboxylation of ornithine to produce putrescine. Ornithine 125-134 ornithine decarboxylase 1 Homo sapiens 25-28 35483312-3 2022 The overexpression of the L-ornithine decarboxylase gene (the SPE1-S gene) from Saccharomyces cerevisiae in the mutant D-LCFAO-cre could make the transformant E-SPE1-S synthesize 3.6 +- 0.1 of intracellular ornithine per mg of protein and produce 10.5 g/L of putrescine. Ornithine 26-37 ornithine decarboxylase SPE1 Saccharomyces cerevisiae S288C 161-165 35483312-3 2022 The overexpression of the L-ornithine decarboxylase gene (the SPE1-S gene) from Saccharomyces cerevisiae in the mutant D-LCFAO-cre could make the transformant E-SPE1-S synthesize 3.6 +- 0.1 of intracellular ornithine per mg of protein and produce 10.5 g/L of putrescine. Ornithine 207-216 ornithine decarboxylase SPE1 Saccharomyces cerevisiae S288C 161-165 35608836-4 2022 Arginine decarboxylase activity was decreased in roots, suggesting that the ornithine decarboxylase-dependent production of putrescine was important in situations of ammonium stress. Ornithine 76-85 arginine decarboxylase Medicago truncatula 0-22 35460691-2 2022 Over the past decade, human ornithine aminotransferase (hOAT), which is an enzyme that catalyzes the metabolic conversion of ornithine into an intermediate for proline or glutamate synthesis, has been found to be overexpressed in HCC cells. Ornithine 125-134 ornithine aminotransferase Homo sapiens 28-54 35543513-6 2022 In addition, we newly identified two mutations in the ARG5,6 gene encoding the Cys119Tyr or Val267Ala variant of NAGK of sake yeast mutants with intracellular ornithine accumulation. Ornithine 159-168 bifunctional acetylglutamate kinase/N-acetyl-gamma-glutamyl-phosphate reductase Saccharomyces cerevisiae S288C 54-60 35543513-11 2022 In the yeast Saccharomyces cerevisiae, N-acetyl glutamate kinase (NAGK) encoded by the ARG5,6 gene catalyzes the second step in ornithine and arginine biosynthesis, and its activity is subjected to feedback inhibition by arginine. Ornithine 128-137 bifunctional acetylglutamate kinase/N-acetyl-gamma-glutamyl-phosphate reductase Saccharomyces cerevisiae S288C 87-93 35563125-1 2022 L-Arginine:glycine amidinotransferase (AGAT) catalyzes the formation of L-homoarginine (hArg) and L-ornithine (Orn) from L-arginine (Arg) and L-lysine (Lys): Arg + Lys hArg + Orn; equilibrium constant KhArg. Ornithine 98-109 glycine amidinotransferase Rattus norvegicus 0-37 35563125-1 2022 L-Arginine:glycine amidinotransferase (AGAT) catalyzes the formation of L-homoarginine (hArg) and L-ornithine (Orn) from L-arginine (Arg) and L-lysine (Lys): Arg + Lys hArg + Orn; equilibrium constant KhArg. Ornithine 98-109 glycine amidinotransferase Rattus norvegicus 39-43 35563125-1 2022 L-Arginine:glycine amidinotransferase (AGAT) catalyzes the formation of L-homoarginine (hArg) and L-ornithine (Orn) from L-arginine (Arg) and L-lysine (Lys): Arg + Lys hArg + Orn; equilibrium constant KhArg. Ornithine 98-109 ABL proto-oncogene 2, non-receptor tyrosine kinase Homo sapiens 170-174 35563125-1 2022 L-Arginine:glycine amidinotransferase (AGAT) catalyzes the formation of L-homoarginine (hArg) and L-ornithine (Orn) from L-arginine (Arg) and L-lysine (Lys): Arg + Lys hArg + Orn; equilibrium constant KhArg. Ornithine 111-114 glycine amidinotransferase Rattus norvegicus 0-37 35563125-1 2022 L-Arginine:glycine amidinotransferase (AGAT) catalyzes the formation of L-homoarginine (hArg) and L-ornithine (Orn) from L-arginine (Arg) and L-lysine (Lys): Arg + Lys hArg + Orn; equilibrium constant KhArg. Ornithine 111-114 glycine amidinotransferase Rattus norvegicus 39-43 35563125-1 2022 L-Arginine:glycine amidinotransferase (AGAT) catalyzes the formation of L-homoarginine (hArg) and L-ornithine (Orn) from L-arginine (Arg) and L-lysine (Lys): Arg + Lys hArg + Orn; equilibrium constant KhArg. Ornithine 111-114 ABL proto-oncogene 2, non-receptor tyrosine kinase Homo sapiens 170-174 35308356-11 2022 The purified Odc1 protein decarboxylated lysine into cadaverine, while the recombinant Odc2 protein preferentially produced putrescine from ornithine but also exhibited low lysine decarboxylating activity. Ornithine 140-149 ornithine decarboxylase pseudogene Homo sapiens 87-91 35286254-1 2022 The bifunctional enzyme Delta1-pyrroline-5-carboxylate synthase (P5CS) is vital to the synthesis of proline and ornithine, playing an essential role in human health and agriculture. Ornithine 112-121 aldehyde dehydrogenase 18 family member A1 Homo sapiens 24-63 35286254-1 2022 The bifunctional enzyme Delta1-pyrroline-5-carboxylate synthase (P5CS) is vital to the synthesis of proline and ornithine, playing an essential role in human health and agriculture. Ornithine 112-121 aldehyde dehydrogenase 18 family member A1 Homo sapiens 65-69 35306816-4 2022 Through the combination of the electrochemical and HRMS results, decreases in arginine and NO and increases in ADMA and ornithine were observed after modulation by CK, and two highly correlated metabolic pathways including arginine and proline metabolism and vascular smooth muscle contraction were found. Ornithine 120-129 cytidine/uridine monophosphate kinase 1 Homo sapiens 164-166 35242829-10 2022 Furthermore, inhibition of ornithine metabolism by silencing ornithine decarboxylase (ODC) in DMSCs partly abolished the benefits of DMSC transplantation. Ornithine 27-36 ornithine decarboxylase 1 Homo sapiens 61-84 35177109-6 2022 Vessel permeability and the gene expression of the primary transporter of L-ornithine, cationic amino acid transporter-1 (Cat-1) in the brain cortex, pancreas, liver and lung were determined. Ornithine 74-85 solute carrier family 7 member 1 Rattus norvegicus 87-120 35177109-6 2022 Vessel permeability and the gene expression of the primary transporter of L-ornithine, cationic amino acid transporter-1 (Cat-1) in the brain cortex, pancreas, liver and lung were determined. Ornithine 74-85 solute carrier family 7 member 1 Rattus norvegicus 122-127 35177109-12 2022 RESULTS: In the L-ornithine-induced AP model vessel permeability for fluorescein and Cat-1 expression levels were elevated in the brain cortex and pancreas. Ornithine 16-27 solute carrier family 7 member 1 Rattus norvegicus 85-90 35242829-11 2022 Conclusion: Compared with BMSCs, DMSCs exhibited better efficacy in improving revascularization and heart remodeling post-MI via the activation of ODC-associated ornithine metabolism. Ornithine 162-171 ornithine decarboxylase 1 Rattus norvegicus 147-150 35242829-10 2022 Furthermore, inhibition of ornithine metabolism by silencing ornithine decarboxylase (ODC) in DMSCs partly abolished the benefits of DMSC transplantation. Ornithine 27-36 ornithine decarboxylase 1 Rattus norvegicus 86-89 35054098-5 2022 In addition, the ratio putrescine/ornithine, representing the activity of ornithine decarboxylase, was significantly increased in patients with active compared to inactive orbitopathy (p = 0.0011, fold change 3.75). Ornithine 34-43 ornithine decarboxylase 1 Homo sapiens 74-97 35208720-5 2022 Our results show that l-ornithine serves as a chemoattractant for several strains of P. aeruginosa, including clinical isolates, and that the chemoreceptors involved in P. aeruginosa PAO1 are PctA and PctB. Ornithine 22-33 chemotactic transducer PctA Pseudomonas aeruginosa PAO1 192-196 35208720-5 2022 Our results show that l-ornithine serves as a chemoattractant for several strains of P. aeruginosa, including clinical isolates, and that the chemoreceptors involved in P. aeruginosa PAO1 are PctA and PctB. Ornithine 22-33 chemotactic transducer PctB Pseudomonas aeruginosa PAO1 201-205 35018637-5 2022 GABA and ornithine were produced during fermentation, indicating glutamate decarboxylase and arginine deiminase activities. Ornithine 9-18 glutamate decarboxylase Cucumis sativus 65-88 2629821-1 1989 The behavior of two enzymes of the ornithine pathway, leading to the formation of proline and, eventually, of collagen, arginase and ornithine oxo-acid aminotransferase has been investigated in normal and inflamed gingival tissue. Ornithine 35-44 ornithine aminotransferase Homo sapiens 133-168 35281666-1 2022 Arginase deficiency is a rare autosomal recessive urea cycle disorder (UCD) caused by mutations in the ARG1 gene encoding arginase that catalyses the hydrolysis of arginine to ornithine and urea. Ornithine 176-185 arginase 1 Homo sapiens 103-107 2584228-1 1989 Ornithine-delta-aminotransferase (OAT) is a nuclear-encoded, mitochondrial enzyme that converts ornithine to glutamate semialdehyde. Ornithine 96-105 ornithine aminotransferase Rattus norvegicus 0-32 2584228-1 1989 Ornithine-delta-aminotransferase (OAT) is a nuclear-encoded, mitochondrial enzyme that converts ornithine to glutamate semialdehyde. Ornithine 96-105 ornithine aminotransferase Rattus norvegicus 34-37 2796972-1 1989 Production of polyamines such as putrescine (PUT), spermidine (SPD) and spermine (SPM) primarily from ornithine by ornithine decarboxylase (ODC) is correlated with cell proliferation. Ornithine 102-111 ornithine decarboxylase 1 Homo sapiens 115-138 2554065-1 1989 Ornithine decarboxylase (ODC) catalyzes the formation of putrescine from ornithine, which is the first step in the pathway of mammalian polyamine biosynthesis. Ornithine 73-82 ornithine decarboxylase 1 Homo sapiens 0-23 2554065-1 1989 Ornithine decarboxylase (ODC) catalyzes the formation of putrescine from ornithine, which is the first step in the pathway of mammalian polyamine biosynthesis. Ornithine 73-82 ornithine decarboxylase 1 Homo sapiens 25-28 2504287-2 1989 L-Arginine and L-ornithine stimulate insulin release from pancreatic islets exposed to D-glucose. Ornithine 15-26 insulin Homo sapiens 37-44 2753136-1 1989 Ornithine induced more than 36-fold the ornithine decarboxylase activity in confined Ehrlich ascites tumour cells after 3.5 h of continuous perifusion with 0.5 mM ornithine; arginine and glutamine also induced the activity 3- and 4-fold, respectively. Ornithine 0-9 ornithine decarboxylase, structural 1 Mus musculus 40-63 2796972-1 1989 Production of polyamines such as putrescine (PUT), spermidine (SPD) and spermine (SPM) primarily from ornithine by ornithine decarboxylase (ODC) is correlated with cell proliferation. Ornithine 102-111 ornithine decarboxylase 1 Homo sapiens 140-143 2918520-4 1989 Just as 1 was a good substrate for FPGS, the ornithine analogue 2 proved to be among the more potent competitive inhibitors of this enzyme discovered to date, with a Ki,s of 10 microM. Ornithine 45-54 folylpolyglutamyl synthetase Mus musculus 35-39 2929364-2 1989 Ornithine decarboxylase is the enzyme that catalyses the formation of putrescine from ornithine. Ornithine 86-95 ornithine decarboxylase 1 Rattus norvegicus 0-23 2452253-6 1988 Interestingly, when the amine function in the side chain of the ornithine-31 was protected by a benzyloxycarbonyl group, an unusual high affinity for pancreatic binding sites was observed and the related analogue proved to be a new peripheral CCK antagonist. Ornithine 64-73 cholecystokinin Cavia porcellus 243-246 2722995-4 1989 The developed method was applied to the determination of putrescine formed from ornithine by ornithine decarboxylase. Ornithine 80-89 ornithine decarboxylase 1 Homo sapiens 93-116 2563942-4 1989 Phosphate efflux caused by externally added ornithine was shown both as revealed by a c colorimetric assay and as continuously monitored by measuring extramitochondrial reduction of NAD+ in the presence of glyceraldehyde-3-phosphate, glyceraldehyde-3-phosphate dehydrogenase, ADP and 3-phosphoglycerate kinase. Ornithine 44-53 glyceraldehyde-3-phosphate dehydrogenase Rattus norvegicus 234-274 2501116-2 1989 Inactivation of L-ornithine:2-oxoacid aminotransferase (OAT) by 5-fluoromethylornithine (5FMOrn), a specific inactivator of OAT, causes a great elevation of tissue ornithine (Orn) concentrations. Ornithine 18-27 ornithine aminotransferase Homo sapiens 56-59 2501116-2 1989 Inactivation of L-ornithine:2-oxoacid aminotransferase (OAT) by 5-fluoromethylornithine (5FMOrn), a specific inactivator of OAT, causes a great elevation of tissue ornithine (Orn) concentrations. Ornithine 18-27 ornithine aminotransferase Homo sapiens 124-127 2501116-2 1989 Inactivation of L-ornithine:2-oxoacid aminotransferase (OAT) by 5-fluoromethylornithine (5FMOrn), a specific inactivator of OAT, causes a great elevation of tissue ornithine (Orn) concentrations. Ornithine 92-95 ornithine aminotransferase Homo sapiens 16-54 2501116-2 1989 Inactivation of L-ornithine:2-oxoacid aminotransferase (OAT) by 5-fluoromethylornithine (5FMOrn), a specific inactivator of OAT, causes a great elevation of tissue ornithine (Orn) concentrations. Ornithine 92-95 ornithine aminotransferase Homo sapiens 56-59 2501116-2 1989 Inactivation of L-ornithine:2-oxoacid aminotransferase (OAT) by 5-fluoromethylornithine (5FMOrn), a specific inactivator of OAT, causes a great elevation of tissue ornithine (Orn) concentrations. Ornithine 92-95 ornithine aminotransferase Homo sapiens 124-127 3141077-5 1988 Enzyme kinetic analyses indicated that GTP lowered the atypically high apparent Km values for L-ornithine of the papilloma enzyme to values typical of epidermal ODC. Ornithine 94-105 ornithine decarboxylase, structural 1 Mus musculus 161-164 3190739-8 1988 Together with earlier studies, these data indicate that the potency of FPGS inhibition by an analog containing ornithine closely parallels the relative substrate activity of its glutamate-containing counterpart. Ornithine 111-120 folylpolyglutamate synthase Homo sapiens 71-75 3420115-8 1988 It was concluded that AIB could partially overcome the ornithine-induced inhibition of ODC activity. Ornithine 55-64 ornithine decarboxylase 1 Homo sapiens 87-90 3136663-3 1988 Renal concentration of putrescine, the product of ODC"s decarboxylation of ornithine, was increased 3, 8, and 48 h after UN, but concentrations of polyamines synthesized later in the pathway, spermidine and spermine, were not appreciably affected. Ornithine 75-84 ornithine decarboxylase 1 Rattus norvegicus 50-53 2838550-1 1988 Human rTNF-alpha stimulates the metabolism of murine peritoneal macrophages as demonstrated by an increased consumption of arginine and an increased release of L-ornithine. Ornithine 160-171 tumor necrosis factor Rattus norvegicus 6-16 2707281-4 1989 In this patient the substitution thus aimed at increasing the intramitochondrial ornithine in order to reach a critical substrate concentration for the kinetically abnormal OTC. Ornithine 81-90 ornithine transcarbamylase Homo sapiens 173-176 2591638-2 1989 The Km for ammonia of carbamyl phosphate synthetase was determined by preincubating isolated liver cells for 30 min in the absence of ammonia and bicarbonate and in the presence of ornithine, chloroquine, which blocks lysosomal proteolysis, and aminoxy acetic acid, which inhibits transaminases. Ornithine 181-190 carbamoyl-phosphate synthase 1 Rattus norvegicus 22-51 3216774-0 1988 Effect of ornithine on transferrin secretion of rat and human hepatocyte cultures. Ornithine 10-19 transferrin Rattus norvegicus 23-34 3216774-4 1988 Thus, it may be postulated that the mechanism involved in the increased transferrin secretion by L-ornithine is of pretranslational origin. Ornithine 97-108 transferrin Homo sapiens 72-83 3190739-0 1988 Structural specificity of inhibition of human folylpolyglutamate synthetase by ornithine-containing folate analogs. Ornithine 79-88 folylpolyglutamate synthase Homo sapiens 46-75 3146234-2 1988 True ODC activity was determined by two methods: (a) addition of the inhibitors alpha-difluoromethylornithine (DFMO), a specific irreversible inhibitor of ODC, or aminooxyacetate (AOA), an inhibitor that blocks the decarboxylation of ornithine by mitochondrial enzymes; and (b) chromatographic analysis of the reaction products. Ornithine 100-109 ornithine decarboxylase 1 Rattus norvegicus 5-8 3146234-7 1988 With AOA, the ODC activities of the fresh and frozen supernatants were similar, indicating that the large increase in apparent ODC activity in frozen tissue was due to artifacts from the metabolism of ornithine via the mitochondrial pathway. Ornithine 201-210 ornithine decarboxylase 1 Rattus norvegicus 127-130 3258250-1 1988 The Km for ornithine is remarkably constant during the course of postnatal development in both normal and spf mutant mice even if a large but transient increase in ornithine decarboxylase (ODC) activity is noted. Ornithine 11-20 ornithine decarboxylase, structural 1 Mus musculus 189-192 3383999-3 1988 Analogues of AVP and oxytocin (OT), modified at positions 1 (2-hydroxy-3-mercaptopropionic acid, deamino-3-mercaptopropionic acid), 2 (Phe), 4 (Arg, Val), 7 (Sar) or 8 (Orn) were synthesized and tested for uterotonic activity on human and rat uterine strips, and for vasopressor and antidiuretic activity in the rat in vivo. Ornithine 169-172 arginine vasopressin Homo sapiens 13-16 3338115-7 1988 Pretreatment of mice with TPA 12 h or 96 h before the second TPA application resulted in the reduction or the increase in the Vmax values of ODC both for ornithine and pyridoxal-5"-phosphate, respectively. Ornithine 154-163 ornithine decarboxylase, structural 1 Mus musculus 141-144 3342404-5 1988 Kinetic analyses indicated that GTP either lowered the apparent Km of tumor ODC for L-ornithine, increased the Vmax, or had both effects, depending on the tumor examined. Ornithine 84-95 ornithine decarboxylase 1 Homo sapiens 76-79 2897088-3 1988 The objective of the present study was to compare the effects of elevation of GABA concentration and those of inactivation of L-ornithine: 2-oxoacid aminotransferase (OAT) on the in vivo metabolism of L-ornithine (Orn) in brain. Ornithine 126-137 ornithine aminotransferase Mus musculus 167-170 3147916-5 1988 The results presented here provide additional in vitro evidence on the characteristic changes in the metabolic imbalance of ornithine in tumor cells induced by DFMO via inhibition of ornithine decarboxylase and ornithine carbamoyl transferase activities. Ornithine 124-133 ornithine decarboxylase, structural 1 Mus musculus 183-206 3145970-4 1988 Inhibition is specific, as a number of substrates and end products of ODC and ADC activities antagonize DFMA and DFMO (i.e. ornithine greater than putrescine = spermidine greater than agmatine). Ornithine 124-133 ornithine decarboxylase 1 Homo sapiens 70-73 2897088-3 1988 The objective of the present study was to compare the effects of elevation of GABA concentration and those of inactivation of L-ornithine: 2-oxoacid aminotransferase (OAT) on the in vivo metabolism of L-ornithine (Orn) in brain. Ornithine 214-217 ornithine aminotransferase Mus musculus 167-170 2897088-3 1988 The objective of the present study was to compare the effects of elevation of GABA concentration and those of inactivation of L-ornithine: 2-oxoacid aminotransferase (OAT) on the in vivo metabolism of L-ornithine (Orn) in brain. Ornithine 201-212 ornithine aminotransferase Mus musculus 167-170 3312423-6 1987 The amino acid composition of the purified HSP included 30% glycine, 15% serine, 12% glutamic acid, and 4% ornithine, but only 2.3% histidine. Ornithine 107-116 heat shock protein 90 beta family member 2, pseudogene Homo sapiens 43-46 3125950-2 1987 Subcellular fractionation showed the enzyme associated with the post-mitochondrial supernatant fraction in each of the tissues: Specific activities of ODC, defined as alpha-difluoromethylornithine (DFMO)-sensitive decarboxylation of ornithine, in the supernatant fractions of combined inner ear tissues were: guinea pig = 44 +/- 4 pmoles CO2 produced/hour/mg protein, and rat = 133 +/- 30. Ornithine 187-196 ornithine decarboxylase 1 Homo sapiens 151-154 3586712-0 1987 Tumor necrosis factor augments the immunogenicity and the production of L-ornithine by peritoneal macrophages. Ornithine 72-83 tumor necrosis factor Homo sapiens 0-21 3623846-6 1987 Our findings suggested that OAT plays an important role in ornithine metabolism in these ocular tissues. Ornithine 59-68 ornithine aminotransferase Rattus norvegicus 28-31 3595616-0 1987 L-ornithine-induced inactivation of mammalian ornithine decarboxylase in vitro. Ornithine 0-11 ornithine decarboxylase 1 Homo sapiens 46-69 3295876-7 1987 Presence of OTCase enzymatic activity in an arg3 strain expressing wild-type precursor was utilized to obtain selective growth in a medium devoid of arginine but supplemented with the OTCase substrate ornithine. Ornithine 201-210 ornithine transcarbamylase Homo sapiens 12-18 3295876-7 1987 Presence of OTCase enzymatic activity in an arg3 strain expressing wild-type precursor was utilized to obtain selective growth in a medium devoid of arginine but supplemented with the OTCase substrate ornithine. Ornithine 201-210 ornithine carbamoyltransferase Saccharomyces cerevisiae S288C 44-48 3295876-7 1987 Presence of OTCase enzymatic activity in an arg3 strain expressing wild-type precursor was utilized to obtain selective growth in a medium devoid of arginine but supplemented with the OTCase substrate ornithine. Ornithine 201-210 ornithine transcarbamylase Homo sapiens 184-190 3586712-2 1987 TNF was found to augment the capacity of peritoneal macrophages to convert 14C-labeled arginine into L-ornithine and to release L-ornithine into the culture medium. Ornithine 101-112 tumor necrosis factor Homo sapiens 0-3 3110288-12 1987 Elicited or resident PM which have been incubated for several days in culture release practically no ornithine; but ornithine production can be induced again by incubation for 24 hr with LPS and to some extent also with interferon-gamma. Ornithine 116-125 interferon gamma Mus musculus 220-236 3586712-1 1987 The release of ornithine by macrophages and its correlation with their immunogenicity after treatment with recombinant human tumor necrosis factor-alpha (TNF) were analyzed. Ornithine 15-24 tumor necrosis factor Homo sapiens 125-152 3586712-1 1987 The release of ornithine by macrophages and its correlation with their immunogenicity after treatment with recombinant human tumor necrosis factor-alpha (TNF) were analyzed. Ornithine 15-24 tumor necrosis factor Homo sapiens 154-157 3586712-2 1987 TNF was found to augment the capacity of peritoneal macrophages to convert 14C-labeled arginine into L-ornithine and to release L-ornithine into the culture medium. Ornithine 128-139 tumor necrosis factor Homo sapiens 0-3 3586712-3 1987 In agreement with the previous observation that L-ornithine potentiates immune responses in vivo, it was also found that treatment of peritoneal exudate cells with TNF augments the capacity of these cells to immunize mice in vivo for a subsequent secondary in vitro cytotoxic response against non-major-histocompatibility antigens. Ornithine 48-59 tumor necrosis factor Mus musculus 164-167 3816789-3 1987 Urea synthesis by the perfused rat liver supplemented with lactate (5 mM), ornithine (2 mM) and methionine sulfoximine (0.15 mM), an inhibitor of glutamine synthetase, was stimulated by stepwise infusion of NH4Cl at doses ranging from 0.24 mM to 3.0 mM. Ornithine 75-84 glutamate-ammonia ligase Rattus norvegicus 146-166 3583682-4 1987 A second isozyme, designated AII (or A4), has a neutral pI, is located in the mitochondrial matrix, and is thought to be involved primarily in the production of ornithine as a precursor of proline and glutamate. Ornithine 161-170 NLR family pyrin domain containing 3 Homo sapiens 29-32 3098738-0 1987 Channeling of extramitochondrial ornithine to matrix ornithine transcarbamylase. Ornithine 33-42 ornithine transcarbamylase Homo sapiens 53-79 3098738-2 1987 External ornithine is channeled between its transporter and ornithine transcarbamylase; mitochondria preloaded with cold ornithine, then incubated with [3H]ornithine, produced citrulline of the same specific radioactivity as that of external ornithine, while matrix ornithine remained essentially unlabeled. Ornithine 9-18 ornithine transcarbamylase Homo sapiens 60-86 3107993-5 1987 The increased homocitrulline excretion suggests that ornithine conversion to citrulline via ornithine transcarbamylase (OTC) was inhibited. Ornithine 53-62 ornithine transcarbamylase Homo sapiens 92-118 3107993-5 1987 The increased homocitrulline excretion suggests that ornithine conversion to citrulline via ornithine transcarbamylase (OTC) was inhibited. Ornithine 53-62 ornithine transcarbamylase Homo sapiens 120-123 3107993-7 1987 In addition to the direct ammoniagenic property of lysine, impaired ornithine conversion to citrulline resulting from the inhibition of both OTC activity and mitochondrial ornithine uptake by lysine may be responsible for the increase in blood ammonia and urinary orotic acid. Ornithine 68-77 ornithine transcarbamylase Homo sapiens 141-144 3467314-5 1986 Kinetic analyses indicated that the papilloma OrnDCase has an altered affinity for its substrate, L-ornithine, compared to epidermal OrnDCase. Ornithine 98-109 ornithine decarboxylase, structural 1 Mus musculus 46-54 2427106-4 1986 An additional 33 kHz, eta = 0 component arising from deuterons on mobile ornithine side chains was present in gramicidin S. In the gel phase of dipalmitoylphosphatidylcholine liposomes the gramicidins gave spectra that had components identical with those obtained from the solids. Ornithine 73-82 endothelin receptor type A Homo sapiens 22-25 2944613-11 1986 Generation of CTLe from the MLC plus ornithine population was radiation sensitive and could be inhibited by reexposure to ornithine, even in the presence of IL-2. Ornithine 37-46 interleukin 2 Homo sapiens 157-161 24232152-4 1986 The enzyme activities of the route ornithine to methylpyrroline, which are those of ornithine decarboxylase, putrescine methyltransferase and methylputrescine oxidase, were determined during callus growth in the induction medium and as a control under non-nicotine-stimulating conditions (growth medium). Ornithine 35-44 ornithine decarboxylase Nicotiana tabacum 84-107 24232152-4 1986 The enzyme activities of the route ornithine to methylpyrroline, which are those of ornithine decarboxylase, putrescine methyltransferase and methylputrescine oxidase, were determined during callus growth in the induction medium and as a control under non-nicotine-stimulating conditions (growth medium). Ornithine 35-44 copper methylamine oxidase-like Nicotiana tabacum 142-166 2871896-5 1986 This major inhibition was completely reversed in the presence of 0.5 mM putrescine, the product of ODC-mediated catabolism of ornithine. Ornithine 126-135 ornithine decarboxylase 1 Homo sapiens 99-102 3095024-6 1986 Intrauterine administration of several concentrations of a new synthetic L-ornithine analogue, AIAVA (2-amine-5-iodoacetamide valeric acid), produced embryonic growth arrest concomitant with arginase inhibition but not ornithine decarboxylase. Ornithine 73-84 ornithine decarboxylase 1 Rattus norvegicus 219-242 3930296-0 1985 Equilibrium between active and inactive forms of rat liver ornithine decarboxylase mediated by L-ornithine and salts. Ornithine 95-106 ornithine decarboxylase 1 Rattus norvegicus 59-82 11539094-4 1986 Two kinds of evidence presented here support a major role for ADC in the generation of putrescine going into alkaloids: (a) A specific "suicide inhibitor" of ADC effectively inhibits the biosynthesis of nicotine and nornicotine in tobacco callus, while the analogous inhibitor of ODC is less effective, and (b) the flow of 14C from uniformly labelled arginine into nicotine is much more efficient than that from ornithine. Ornithine 413-422 arginine decarboxylase Nicotiana tabacum 62-65 11539094-4 1986 Two kinds of evidence presented here support a major role for ADC in the generation of putrescine going into alkaloids: (a) A specific "suicide inhibitor" of ADC effectively inhibits the biosynthesis of nicotine and nornicotine in tobacco callus, while the analogous inhibitor of ODC is less effective, and (b) the flow of 14C from uniformly labelled arginine into nicotine is much more efficient than that from ornithine. Ornithine 413-422 arginine decarboxylase Nicotiana tabacum 159-162 3931086-2 1985 At concentrations of 0.5 mM and above alpha-difluoromethyl ornithine (DFMO), which inhibits ornithine decarboxylase and the conversion of ornithine to putrescine, significantly attenuated the mitogenic effect of prolactin. Ornithine 59-68 ornithine decarboxylase 1 Homo sapiens 92-115 3931086-2 1985 At concentrations of 0.5 mM and above alpha-difluoromethyl ornithine (DFMO), which inhibits ornithine decarboxylase and the conversion of ornithine to putrescine, significantly attenuated the mitogenic effect of prolactin. Ornithine 59-68 prolactin Homo sapiens 212-221 3958058-6 1986 Intracellular putrescine and spermidine levels are substantially decreased when cultures are maintained in medium supplemented with insulin, transferrin, and ferrous sulfate, rather than serum, which is the sole source of exogenous ornithine. Ornithine 232-241 insulin Cricetulus griseus 132-139 3953797-3 1986 Since OTC catalyzes the conversion of ornithine to citrulline, in the presence of carbamoyl-phosphate, the effect of a disturbed ornithine metabolism on the postnatal development of the small intestine has been evaluated. Ornithine 38-47 ornithine transcarbamylase Mus musculus 6-9 3953797-3 1986 Since OTC catalyzes the conversion of ornithine to citrulline, in the presence of carbamoyl-phosphate, the effect of a disturbed ornithine metabolism on the postnatal development of the small intestine has been evaluated. Ornithine 129-138 ornithine transcarbamylase Mus musculus 6-9 4032436-3 1985 Phosphonic (4a,b) and phosphinic (5a-d) analogues of ornithine were synthesized and evaluated for their inhibitory activity against ornithine decarboxylase and against the lymphocytic leukemia P388. Ornithine 53-62 ornithine decarboxylase 1 Rattus norvegicus 132-155 3923020-1 1985 GH-releasing factor (GHRH) was measured by RIA in the plasma of 22 constitutionally short children given an ornithine infusion or an oral dose of L-dopa. Ornithine 108-117 growth hormone releasing hormone Homo sapiens 21-25 3923020-7 1985 On the contrary, ornithine-induced GH release was not preceded by a GHRH rise, but was followed by a GHRH decrease, from 51 to 27 pg/ml (P less than 0.02). Ornithine 17-26 growth hormone releasing hormone Homo sapiens 101-105 3159341-1 1985 Ornithine transcarbamylase catalyzes the synthesis of citrulline from carbamyl phosphate and ornithine. Ornithine 93-102 ornithine transcarbamylase Rattus norvegicus 0-26 3158402-7 1985 The addition of interleukin 2 (IL-2)-containing EL-4 supernatants did not prevent but rather enhanced the suppressive effect of L-ornithine. Ornithine 128-139 interleukin 2 Homo sapiens 16-29 3993779-5 1985 Ornithine prevented the increase in both normal and hepatectomized rats, suggesting that ornithine was rate limiting for the ornithine carbamoyltransferase (OCT) reaction. Ornithine 0-9 ornithine transcarbamylase Rattus norvegicus 125-155 3993779-5 1985 Ornithine prevented the increase in both normal and hepatectomized rats, suggesting that ornithine was rate limiting for the ornithine carbamoyltransferase (OCT) reaction. Ornithine 0-9 ornithine transcarbamylase Rattus norvegicus 157-160 3993779-5 1985 Ornithine prevented the increase in both normal and hepatectomized rats, suggesting that ornithine was rate limiting for the ornithine carbamoyltransferase (OCT) reaction. Ornithine 89-98 ornithine transcarbamylase Rattus norvegicus 125-155 3993779-5 1985 Ornithine prevented the increase in both normal and hepatectomized rats, suggesting that ornithine was rate limiting for the ornithine carbamoyltransferase (OCT) reaction. Ornithine 89-98 ornithine transcarbamylase Rattus norvegicus 157-160 3993779-6 1985 The orotic acid excretion response to NH4+ was much less 24-27 h post-Hx, indicating that ornithine availability for the OCT reaction may be increased at this time. Ornithine 90-99 ornithine transcarbamylase Rattus norvegicus 121-124 3158402-7 1985 The addition of interleukin 2 (IL-2)-containing EL-4 supernatants did not prevent but rather enhanced the suppressive effect of L-ornithine. Ornithine 128-139 interleukin 2 Homo sapiens 31-35 3923277-1 1985 Incubation of murine spleen and bone marrow cells with homogeneously purified interleukin 3 (IL-3) results in increased urea and ornithine production. Ornithine 129-138 interleukin 3 Mus musculus 78-97 3920317-8 1985 By the criteria tested, the immunosuppressive effect of L-ornithine is more selective than that of cyclosporine A, which was previously found to suppress not only the activation of cytotoxic activity but also proliferative responses and the production of the lymphokines IL 2 and IFN-gamma. Ornithine 56-67 interleukin 2 Homo sapiens 271-275 3920317-8 1985 By the criteria tested, the immunosuppressive effect of L-ornithine is more selective than that of cyclosporine A, which was previously found to suppress not only the activation of cytotoxic activity but also proliferative responses and the production of the lymphokines IL 2 and IFN-gamma. Ornithine 56-67 interferon gamma Homo sapiens 280-289 6389319-4 1984 Putrescine (the product formed from ornithine by ODC), at 10(-5) M, markedly inhibited the induction of ODC by insulin or FBS, but the inhibition was less when asparagine was present. Ornithine 36-45 ornithine decarboxylase 1 Rattus norvegicus 49-52 2933755-2 1985 NuS is used clinically to improve a negative nitrogen balance, while the amino acid composition of NuC has a beneficial effect on the ornithine cycle and thus helps to normalize the NH3 level in patients with liver failure. Ornithine 134-143 nucleobindin 1 Homo sapiens 99-102 16663852-6 1984 On inhibiting glutamine synthetase using MSX, (15)N enrichment of glutamate, alanine, aspartate, and ornithine continued although labeling of glutamine was quite low. Ornithine 101-110 glutamate-ammonia ligase Homo sapiens 14-34 6381100-4 1984 Selective inactivation of the two types of ODC by the (R)-enantiomer is in agreement with the stereochemistry reported for ornithine decarboxylation by the enzyme. Ornithine 123-132 ornithine decarboxylase 1 Homo sapiens 43-46 6389319-4 1984 Putrescine (the product formed from ornithine by ODC), at 10(-5) M, markedly inhibited the induction of ODC by insulin or FBS, but the inhibition was less when asparagine was present. Ornithine 36-45 ornithine decarboxylase 1 Rattus norvegicus 104-107 6539129-0 1984 A role for ornithine in the regulation of putrescine accumulation and ornithine decarboxylase activity in Reuber H35 hepatoma cells. Ornithine 11-20 ornithine decarboxylase 1 Rattus norvegicus 70-93 6092398-3 1984 "77orn", a derivative of the Morris rat hepatoma 7777, stably expresses high levels of ornithine transcarbamoylase (OTC) and carbamoylphosphate synthetase I (CPS-I), and is able to grow indefinitely in ornithine-medium (medium with ornithine in place of arginine). Ornithine 87-96 ornithine transcarbamylase Rattus norvegicus 116-119 6430547-1 1984 We have investigated the effect of age, a high-fat diet, sodium deoxycholate, and the ornithine analogue alpha-difluoromethylornithine on ornithine decarboxylase (ODC) activity in the rat colon. Ornithine 86-95 ornithine decarboxylase 1 Rattus norvegicus 138-161 6430547-1 1984 We have investigated the effect of age, a high-fat diet, sodium deoxycholate, and the ornithine analogue alpha-difluoromethylornithine on ornithine decarboxylase (ODC) activity in the rat colon. Ornithine 86-95 ornithine decarboxylase 1 Rattus norvegicus 163-166 6379395-3 1984 The virally activated ornithine decarboxylase removes ornithine from participation in the urea cycle by metabolizing ornithine to putrescine which, in turn, is metabolized to spermidine. Ornithine 54-63 ornithine decarboxylase 1 Homo sapiens 22-45 6539129-1 1984 We investigated the ability of intracellular ornithine to alter both the biosynthesis of putrescine and the activity of ornithine decarboxylase in Reuber H35 hepatoma cells in culture incubated with 12-O- tetrade - canoylphorbol 13-acetate (TPA). Ornithine 45-54 ornithine decarboxylase 1 Rattus norvegicus 120-143 6706914-1 1984 To determine the steric course of the reaction of bacterial ornithine decarboxylase [EC 4.1.1.17], we have carried out the decarboxylation of L-ornithine in 2H2O and that of DL-[2-2H]ornithine in H2O, and obtained putrescine bearing a single deuterium atom in the C-1 position. Ornithine 142-153 ornithine decarboxylase 1 Homo sapiens 60-83 6198722-4 1984 Ornithine was present in hydrolyzates of 21.5K MBP, but it was not detected in any of the peptides. Ornithine 0-9 myelin basic protein Ovis aries 47-50 6190408-10 1983 Levels of liver urea and ornithine were found to vary in inverse proportion with the magnitude of ODC stimulation. Ornithine 25-34 ornithine decarboxylase 1 Rattus norvegicus 98-101 6631913-1 1983 (E)-Dehydro analogues of alpha-(fluoromethyl)putrescine and -ornithine derivatives were synthesized and evaluated in vitro as irreversible inhibitors of a preparation of ornithine decarboxylase (ODC, EC 4.1.1.17) obtained from rat liver. Ornithine 61-70 ornithine decarboxylase 1 Rattus norvegicus 170-193 6631913-1 1983 (E)-Dehydro analogues of alpha-(fluoromethyl)putrescine and -ornithine derivatives were synthesized and evaluated in vitro as irreversible inhibitors of a preparation of ornithine decarboxylase (ODC, EC 4.1.1.17) obtained from rat liver. Ornithine 61-70 ornithine decarboxylase 1 Rattus norvegicus 195-198 6854188-5 1983 This study, which indicates a differential effect of ornithine on PL and GH secretion in the mother and fetus, suggests that the factors regulating PL and GH secretion in the mother and fetus are distinct. Ornithine 53-62 chorionic somatomammotropin hormone Ovis aries 66-68 6414762-1 1983 Decarboxylation of L-ornithine by L-ornithine decarboxylase (ODC; E.C.4.1.1.17.) Ornithine 19-30 ornithine decarboxylase 1 Homo sapiens 34-59 6414762-1 1983 Decarboxylation of L-ornithine by L-ornithine decarboxylase (ODC; E.C.4.1.1.17.) Ornithine 19-30 ornithine decarboxylase 1 Homo sapiens 61-64 6854188-5 1983 This study, which indicates a differential effect of ornithine on PL and GH secretion in the mother and fetus, suggests that the factors regulating PL and GH secretion in the mother and fetus are distinct. Ornithine 53-62 chorionic somatomammotropin hormone Ovis aries 148-150 6187826-1 1983 The production of urea and ornithine is increased greatly in spleen cell cultures of an allograft recipient in the presence of donor cells (secondary MLC) in comparison to that of primary MLC (without previous allograft). Ornithine 27-36 modulator of VRAC current 1 Homo sapiens 150-153 6187826-5 1983 The increased production of urea and ornithine during MLC results from the action of a lymphokine released by recipient cells in the presence of donor cells. Ornithine 37-46 modulator of VRAC current 1 Homo sapiens 54-57 7304077-15 1981 Insulin-induced hypoglycaemia, arginine and ornithine administration resulted in inconsistent and sluggish GH increment. Ornithine 44-53 somatotropin Canis lupus familiaris 107-109 6830854-1 1983 Ornithine was found to be toxic to cells that lack ornithine aminotransferase (EC 2.6.1.13). Ornithine 0-9 ornithine aminotransferase, mitochondrial Cricetulus griseus 51-77 6312977-3 1983 These differences were provoked by an additional effect of the precursors of syntheses studied, i.e. lactate or ornithine, on the hydrogen supply of the respiratory chain, as was reflected in terms of the reduction degree of cytochrome c in isolated mitochondria. Ornithine 112-121 cytochrome c, somatic Homo sapiens 225-237 7085611-6 1982 The stimulation by ornithine of mitochondrial carbamyl phosphate synthesis was prevented when ornithine transcarbamylase was inhibited more than 96% by 5 mM delta-N-phosphonacetyl-L-ornithine, suggesting that the normal stimulatory effect of ornithine on carbamyl phosphate synthetase occurs via ornithine transcarbamylase. Ornithine 19-28 ornithine transcarbamylase Rattus norvegicus 94-120 7085611-6 1982 The stimulation by ornithine of mitochondrial carbamyl phosphate synthesis was prevented when ornithine transcarbamylase was inhibited more than 96% by 5 mM delta-N-phosphonacetyl-L-ornithine, suggesting that the normal stimulatory effect of ornithine on carbamyl phosphate synthetase occurs via ornithine transcarbamylase. Ornithine 19-28 ornithine transcarbamylase Rattus norvegicus 296-322 7087958-3 1982 The kinetic parameters of the urea cycle enzymes are the same in fetal liver as in adult liver, except that the Km values of ornithine carbamoyltransferase for L-ornithine are 3.5 mM and 0.42 mM in the fetus and in adult liver, respectively. Ornithine 160-171 ornithine transcarbamylase Homo sapiens 125-155 16662144-1 1982 In excised pro(1-1) mutant and corresponding normal type roots of Zea mays L. the uptake and interconversion of [(14)C]proline, [(14)C]glutamic acid, [(14)C]glutamine, and [(14)C]ornithine and their utilization for protein synthesis was measured with the intention of finding an explanation for the proline requirement of the mutant. Ornithine 179-188 profilin-1 Zea mays 11-18 6833225-1 1983 The mechanism of inhibition of pyruvate carboxylase, pyruvate dehydrogenase, and carbamyl phosphate synthetase induced by alpha-ketoisovalerate metabolism has been investigated in isolated rat hepatocytes incubated with lactate, pyruvate, ammonia, and ornithine as substrates. Ornithine 252-261 pyruvate carboxylase Rattus norvegicus 31-51 6422152-4 1983 The ornithine concentration in the blood cells of the patients reached a peak 2 h after the oral administration, and remained high for at least 4 h, although after 2 h the concentration curves differed in the three types of cells. Ornithine 4-13 PEAK1 related, kinase-activating pseudokinase 1 Homo sapiens 73-79 7141003-3 1982 Phosphorylation of OrnDCase inhibits its capacity to catalyze decarboxylation of ornithine. Ornithine 81-90 ornithine decarboxylase 1 Rattus norvegicus 19-27 7173402-0 1982 The differential contribution of arginase and transamidinase to ornithine biosynthesis in two achromic human melanoma cell lines. Ornithine 64-73 glycine amidinotransferase Homo sapiens 46-60 7173402-2 1982 Two enzymes are involved in ornithine biosynthesis: arginase and transamidinase. Ornithine 28-37 glycine amidinotransferase Homo sapiens 65-79 7173402-4 1982 Arginase activity accounts for the majority of ornithine formed in the highly tumorigenic cell line, while the majority of ornithine is derived from transamidinase action in the poorly tumorigenic cell line, with concomitant formation of methyl guanidine, a potent inhibitor of diamine oxidase. Ornithine 123-132 glycine amidinotransferase Homo sapiens 149-163 7287759-2 1981 Homogeneous rat liver carbamyl phosphate synthetase I is activated by ornithine and other amino acids. Ornithine 70-79 carbamoyl-phosphate synthase 1 Rattus norvegicus 22-53 7287759-7 1981 Previous in vivo studies have shown that carbamyl phosphate synthetase I is rapidly activated by the addition of ornithine. Ornithine 113-122 carbamoyl-phosphate synthase 1 Rattus norvegicus 41-72 7287759-8 1981 The present in vitro findings, as well as the previous in vivo findings, suggest a regulatory scheme for carbamyl phosphate synthetase I in which (a) the enzyme is inhibited by physiological levels of heavy metal ions and (b) this inhibition can be relieved by the addition of ornithine or other amino acids. Ornithine 277-286 carbamoyl-phosphate synthase 1 Rattus norvegicus 105-136 6115302-2 1981 Using a radioisotopic assay, we have studied the regulation by ornithine of delta 1-pyrroline-5-carboxylate synthase, the enzyme that catalyzes the first step of proline biosynthesis from glutamic acid. Ornithine 63-72 aldehyde dehydrogenase 18 family member A1 Homo sapiens 76-116 6797167-0 1981 Decarboxylation of ornithine and lysine by ornithine decarboxylase from kidneys of testosterone treated mice. Ornithine 19-28 ornithine decarboxylase, structural 1 Mus musculus 43-66 6263582-3 1981 The effectiveness of in vivo treatment with LH in inducing ovarian ornithine decarboxylase (ODC) activity, measured in 20,000 X g supernatants by the in vitro formation of 14CO2 from labeled ornithine, increased significantly during prepubertal development (days 21-33), paralleling the changes in hCG receptors. Ornithine 67-76 ornithine decarboxylase 1 Rattus norvegicus 92-95 7254777-4 1981 One patient with the poorest control of plasma ornithine has developed a decrease in ERG amplitudes and a new area of chorioretinal atrophy. Ornithine 47-56 ETS transcription factor ERG Homo sapiens 85-88 7254778-2 1981 Ornithine-delta-aminotransferase deficiency is the primary biochemical defect in gyrate atrophy of the choroid and retina and results in the characteristic accumulation of ornithine. Ornithine 172-181 ornithine aminotransferase Homo sapiens 0-32 7376785-2 1980 An iv infusion of ornithine hydrochloride was given to 23 controls; the induced rise of GH was accompanied by a simultaneous fall of SM (r = -0.711, P less than 0.001) and was preceded by a fall of Tf (r = -0.610, P less than 0.01). Ornithine 18-41 growth hormone 1 Homo sapiens 88-90 7205129-0 1981 Stimulation by ornithine of ovine placental lactogen secretion. Ornithine 15-24 chorionic somatomammotropin hormone Ovis aries 34-52 7205129-7 1981 The results indicate that ornithine is also a potent stimulus to the secretion of PL, GH and prolactin and suggest that arginine-induced PL secretion may result from the conversion of arginine to ornithine. Ornithine 26-35 chorionic somatomammotropin hormone Ovis aries 82-84 7205129-7 1981 The results indicate that ornithine is also a potent stimulus to the secretion of PL, GH and prolactin and suggest that arginine-induced PL secretion may result from the conversion of arginine to ornithine. Ornithine 196-205 chorionic somatomammotropin hormone Ovis aries 137-139 7208155-3 1980 On the contrary, the apparent Km"s of human liver OTC were 0.6 mM for ornithine and 0.12 mM for carbamyl phosphate. Ornithine 70-79 ornithine transcarbamylase Homo sapiens 50-53 6162456-11 1980 Ornithine decarboxylase activity was variable in the diabetic rat, showing a positive correlation with endogenous ornithine concentrations. Ornithine 114-123 ornithine decarboxylase 1 Rattus norvegicus 0-23 7381232-1 1980 Ornithine decarboxylase which forms putrescine by the decarboxyalation of ornithine, is the first and probably the rate-limiting enzyme in the biosynthesis of the other polyamines, spermidine and spermine. Ornithine 74-83 ornithine decarboxylase, structural 1 Mus musculus 0-23 7205870-0 1981 alpha-Ethynyl and alpha-vinyl analogues of ornithine as enzyme-activated inhibitors of mammalian ornithine decarboxylase. Ornithine 43-52 ornithine decarboxylase 1 Homo sapiens 97-120 6775372-1 1980 alpha-Difluoromethylornithine (RMI 71,782), a specific irreversible inhibitor of the first step in polyamine biosynthesis, that is, the formation of putrescine from ornithine by ornithine decarboxylase, cures mice infected with a virulent, rodent-passaged strain of Trypanosoma brucei brucei. Ornithine 20-29 ornithine decarboxylase, structural 1 Mus musculus 178-201 6991493-1 1980 We isolated several strains of Saccharomyces cerevisiae containing mutations mapping at a single chromosomal gene (spe10); these strains are defective in the decarboxylation of L-ornithine to form putrescine and consequently do not synthesize spermidine and spermine. Ornithine 177-188 ornithine decarboxylase SPE1 Saccharomyces cerevisiae S288C 115-120 7391521-4 1980 The apparent Km for ornithine (140-280 micro M) was similar for cytosol and cell ODC. Ornithine 20-29 ornithine decarboxylase Bos taurus 81-84 7391521-5 1980 Thiol compounds were required for the maximal enzyme activity and there was an absolute requirement for pyridoxal phosphate as a cofactor, with an apparent Km of 15 micro M. There was a modest competitive inhibition of ODC activity by the end products of ornithine catabolism. Ornithine 255-264 ornithine decarboxylase Bos taurus 219-222 7376785-2 1980 An iv infusion of ornithine hydrochloride was given to 23 controls; the induced rise of GH was accompanied by a simultaneous fall of SM (r = -0.711, P less than 0.001) and was preceded by a fall of Tf (r = -0.610, P less than 0.01). Ornithine 18-41 transferrin Homo sapiens 198-200 7228251-3 1980 The yields of NPYR formed from pyrrolidine, putrescine, agmatine, spermidine, spermine, proline, ornithine and arginine with nitrite in the pH range 6.6 to 4.0 were determined. Ornithine 97-106 neuropeptide Y receptor Y1 Homo sapiens 14-18 7378422-2 1980 The inhibitory effect of ornithine on L-arginine:glycine amidinotransferase (EC 2.1.4.1) was studied in crude rat kidney homogenates. Ornithine 25-34 glycine amidinotransferase Rattus norvegicus 38-75 378940-4 1979 Mutants defective in the pro1 and pro2 genes can be satisfied by arginine or ornithine as well as proline. Ornithine 77-86 glutamate 5-kinase Saccharomyces cerevisiae S288C 25-29 393602-0 1979 Kinetic properties and regulation by L-ornithine of chicken liver arginase induced by insulin. Ornithine 37-48 insulin Gallus gallus 86-93 442084-4 1979 (3) The CCl4-induced liver dysfunction group showed a significantly higher level of arginine synthetase activity than the group with 6 weeks of biliary obstruction, but ammonia removal was markedly decreased and the effects of ATP and ornithine addition were prominent. Ornithine 235-244 C-C motif chemokine ligand 4 Rattus norvegicus 8-12 429491-3 1979 The mutant OTC showed an increased apparent Km for ornithine and an increased pH optimum. Ornithine 51-60 ornithine transcarbamylase Homo sapiens 11-14 438294-1 1979 Ornithine aminotransferase catalyzes the reversible transamination of L-ornithine to delta1-pyrroline-5-carboxylate, the immediate precursor of proline. Ornithine 70-81 ornithine aminotransferase Homo sapiens 0-26 762194-2 1979 A multi-step selection procedure is described which selects from HR-II-E populations, cells with OCT activity which can grow in arginine-deficient, ornithine-supplemented media. Ornithine 148-157 ornithine transcarbamylase Rattus norvegicus 97-100 729890-5 1978 Km (ornithine) of the patient"s ornithine transcarbamylase was within the normal range (0.41 nM), but the Km (carbamyl phosphate) was low (0.18 mM). Ornithine 4-13 ornithine transcarbamylase Homo sapiens 32-58 589799-1 1977 Ornithine carbamoyltransferase (EC 2.1.3.3) activity in human liver homogenates has been measured using 14C-labeled ornithine and unlabeled carbamoyl phosphate. Ornithine 116-125 ornithine transcarbamylase Homo sapiens 0-30 619149-0 1978 Analogues of ornithine as inhibitors of ornithine decarboxylase. Ornithine 13-22 ornithine decarboxylase 1 Rattus norvegicus 40-63 619149-2 1978 Fourteen structural analogues of ornithine were synthesized and evaluated as inhibitors of preparations of the enzyme L-ornithine carboxylase (ODC) (E.C. Ornithine 33-42 ornithine decarboxylase 1 Rattus norvegicus 143-146 619149-6 1978 From the degree of inhibition of ODC activity in the presence of the various ornithine analogues, it has been possible to delineate some of the structural features of the substrate L-ornithine which are required for binding to the mammalian ODC active site. Ornithine 77-86 ornithine decarboxylase 1 Homo sapiens 33-36 619149-6 1978 From the degree of inhibition of ODC activity in the presence of the various ornithine analogues, it has been possible to delineate some of the structural features of the substrate L-ornithine which are required for binding to the mammalian ODC active site. Ornithine 77-86 ornithine decarboxylase 1 Homo sapiens 241-244 619149-6 1978 From the degree of inhibition of ODC activity in the presence of the various ornithine analogues, it has been possible to delineate some of the structural features of the substrate L-ornithine which are required for binding to the mammalian ODC active site. Ornithine 181-192 ornithine decarboxylase 1 Homo sapiens 33-36 619149-6 1978 From the degree of inhibition of ODC activity in the presence of the various ornithine analogues, it has been possible to delineate some of the structural features of the substrate L-ornithine which are required for binding to the mammalian ODC active site. Ornithine 181-192 ornithine decarboxylase 1 Homo sapiens 241-244 977659-7 1976 The Km of ODC for ornithine is 0.12 mM. Ornithine 18-27 ornithine decarboxylase, structural 1 Mus musculus 10-13 909953-2 1977 In hypophysectomized rats, found to oxidize ornithine at rates comparable to those of normal rats, an acute treatment of growth hormone 4 hours before injection of L-ornithine-1-14C caused a 39% increase in the peak specific activity of carbon dioxide and a 24% increase in the 14CO2 recovered in 5 hours. Ornithine 44-53 gonadotropin releasing hormone receptor Rattus norvegicus 121-135 885138-2 1977 It was demonstrated that argininosuccinate lyase was the only ornithine cycle enzyme inhibited by urea in a competitive manner. Ornithine 62-71 argininosuccinate lyase Homo sapiens 25-48 836898-2 1977 The inhibition by L-leucine is largely overcome by addition of 1 mM L-ornithine, suggesting that the main site of L-leucine action is at ornithine transcarbamylase, rather than at glutamate dyhydrogenase. Ornithine 68-79 ornithine transcarbamylase Rattus norvegicus 137-163 1151975-6 1975 A number of alpha-alkyl- and alpha-aralkyl-substituted analogs of (+/-)-ornithine were synthesized and evaluated in vitro as inhibitors of the enzyme L-ornithine decarboxylase obtained from prostate glands of rats. Ornithine 66-81 ornithine decarboxylase 1 Rattus norvegicus 152-175 1064034-5 1976 Cell proliferation is also restored by L-ornithine presumably due to in situ competitive inhibition of ornithine decarboxylase. Ornithine 39-50 ornithine decarboxylase 1 Rattus norvegicus 103-126 4660448-0 1972 [Effect of ornithine hydrochloride on growth hormone (HGH) plasma levels]. Ornithine 11-34 growth hormone 1 Homo sapiens 38-52 1150642-2 1975 Using partially enzyme preparations, it was found that DL-HAVA strongly inhibited ornithine decarboxylase (EC 4.1.1.17) by competing with L-ornithine. Ornithine 138-149 ornithine decarboxylase, structural 1 Mus musculus 82-105 1150642-3 1975 Other enzymes metabolizing ornithine and pyridoxal phosphate-dependent enzymes were at least 2-3 orders of magnitude less sensitive to DL-HAVA than ornithine decarboxylase. Ornithine 27-36 ornithine decarboxylase, structural 1 Mus musculus 148-171 58543-2 1975 It is demonstrated that among the aminoacyl adenylate binding sites of the heavy component of GSS the activation site of L-ornithine is distinguished by a relatively high substrate variability. Ornithine 121-132 glutathione synthetase Homo sapiens 94-97 14058941-7 1963 The conversion of arginine to ornithine in PPLO-contaminated cell culture was rapid, and occurred by the arginine dihydrolase pathway involving arginine deiminase, ornithine transcarbamylase, and carbamyl phosphokinase. Ornithine 30-39 ornithine transcarbamylase Homo sapiens 164-190 4672804-3 1972 Occurrence of the urea cycle can be excluded since two enzymes for the further reaction of ornithine in the cycle, carbamoyl phosphate synthetase I and ornithine carbamoyltransferase, are both absent from this tissue. Ornithine 91-100 carbamoyl-phosphate synthase 1 Rattus norvegicus 115-147 34050775-5 2021 The IR binding assay was used to determine unknown amounts of insulin secreted by MIN6 beta cell line after stimulation with glucose, arginine, ornithine, dopamine, and serotonin. Ornithine 144-153 insulin Homo sapiens 62-69 34050775-0 2021 A radioligand receptor binding assay for measuring of insulin secreted by MIN6 cells after stimulation with glucose, arginine, ornithine, dopamine, and serotonin. Ornithine 127-136 insulin Homo sapiens 54-61 33500272-3 2021 Pegzilarginase, a human arginase 1 enzyme engineered to have superior stability and enzymatic activity relative to the native human arginase 1 enzyme, depletes systemic arginine by converting it to ornithine and urea. Ornithine 198-207 arginase 1 Homo sapiens 24-34 33891387-13 2021 Conversely, citrulline, N-acetylornithine and ornithine were significantly elevated in the presence of hFB1 but not any of the other fumonisin analogues. Ornithine 32-41 TCF3 fusion partner Homo sapiens 103-107 33950277-11 2021 Moreover, the genes involved in ornithine pathway (Orn-OAT-P5C/GSA-P5CR-Pro) were up-regulated along with the up-regulation of those genes involved in glutamate pathway (Glu-P5CS-P5C/GSA-P5CR-Pro). Ornithine 32-41 pyrroline-5- carboxylate (P5C) reductase Arabidopsis thaliana 67-71 33950277-11 2021 Moreover, the genes involved in ornithine pathway (Orn-OAT-P5C/GSA-P5CR-Pro) were up-regulated along with the up-regulation of those genes involved in glutamate pathway (Glu-P5CS-P5C/GSA-P5CR-Pro). Ornithine 32-41 pyrroline-5- carboxylate (P5C) reductase Arabidopsis thaliana 187-191 33915902-3 2021 Cytoplasmic ornithine, the intermediate product of the urea cycle, is a specific substrate for ornithine decarboxylase (ODC, also known as ODC1) for the production of putrescine and is required for tumor growth. Ornithine 12-21 ornithine decarboxylase 1 Homo sapiens 95-118 33915902-3 2021 Cytoplasmic ornithine, the intermediate product of the urea cycle, is a specific substrate for ornithine decarboxylase (ODC, also known as ODC1) for the production of putrescine and is required for tumor growth. Ornithine 12-21 ornithine decarboxylase 1 Homo sapiens 120-123 33915902-3 2021 Cytoplasmic ornithine, the intermediate product of the urea cycle, is a specific substrate for ornithine decarboxylase (ODC, also known as ODC1) for the production of putrescine and is required for tumor growth. Ornithine 12-21 ornithine decarboxylase 1 Homo sapiens 139-143 33754845-1 2021 Arginase-1, an enzyme that catalyzes the reaction of L-arginine to L-ornithine, is implicated in the tumor immune response and represents an interesting therapeutic target in immuno-oncology. Ornithine 67-78 arginase 1 Homo sapiens 0-10 33211385-3 2021 SLC7A1/CAT1 is a transporter responsible for the uptake of cationic amino acids (arginine, lysine, and ornithine) essential for cellular growth. Ornithine 103-112 solute carrier family 7 member 1 Homo sapiens 0-6 33621898-7 2021 The N5-[18F]FPO exhibited fast uptake in HepG2 cells and the cellular uptake ability of N5-[18F]FPO can be inhibited by L-ornithine and DFMO, which indicated that the transport pathway of N5-[18F]FPO is similar to that of L-ornithine, interacting with ODC after being transported into the cell. Ornithine 120-131 ornithine decarboxylase 1 Homo sapiens 252-255 33573605-11 2021 Analysis of serum amino acid levels revealed that two SPG9A patients and two unaffected family members had low citrulline levels and one had a low level of ornithine. Ornithine 156-165 aldehyde dehydrogenase 18 family member A1 Homo sapiens 54-59 33586680-5 2021 Dysregulation of gene transcripts associated with polyamine metabolism in Alzheimer"s disease (AD) brains were observed, and we found that ornithine decarboxylase antizyme inhibitor 2 (AZIN2) increased to the greatest extent. Ornithine 139-148 antizyme inhibitor 2 Mus musculus 185-190 33211385-3 2021 SLC7A1/CAT1 is a transporter responsible for the uptake of cationic amino acids (arginine, lysine, and ornithine) essential for cellular growth. Ornithine 103-112 solute carrier family 7 member 1 Homo sapiens 7-11 33542926-8 2021 mTORC1 upregulated NF-kappaB activation and the expression of AST and ODC in response to glutamate and ornithine treatments, whereas rapamycin inhibited the utilization of glutamate and ornithine in hepatocytes. Ornithine 103-112 CREB regulated transcription coactivator 1 Mus musculus 0-6 33542926-8 2021 mTORC1 upregulated NF-kappaB activation and the expression of AST and ODC in response to glutamate and ornithine treatments, whereas rapamycin inhibited the utilization of glutamate and ornithine in hepatocytes. Ornithine 103-112 nuclear factor kappa B subunit 1 Homo sapiens 19-28 33542926-8 2021 mTORC1 upregulated NF-kappaB activation and the expression of AST and ODC in response to glutamate and ornithine treatments, whereas rapamycin inhibited the utilization of glutamate and ornithine in hepatocytes. Ornithine 103-112 solute carrier family 17 member 5 Homo sapiens 62-65 33542926-8 2021 mTORC1 upregulated NF-kappaB activation and the expression of AST and ODC in response to glutamate and ornithine treatments, whereas rapamycin inhibited the utilization of glutamate and ornithine in hepatocytes. Ornithine 103-112 ornithine decarboxylase 1 Homo sapiens 70-73 33542926-8 2021 mTORC1 upregulated NF-kappaB activation and the expression of AST and ODC in response to glutamate and ornithine treatments, whereas rapamycin inhibited the utilization of glutamate and ornithine in hepatocytes. Ornithine 186-195 CREB regulated transcription coactivator 1 Mus musculus 0-6 33428938-7 2021 Given that, among GPR6CA ligands tested, GluOC and ornithine increased the expression of ATGL in cultured 3T3-L1 adipocytes in a manner dependent on GPRC6A, our results suggest that the constitutive activation of GPRC6A signaling in adipocytes by GluOC or ornithine plays a key role in adipose lipid handling and the prevention of obesity and related metabolic disorders. Ornithine 51-60 patatin-like phospholipase domain containing 2 Mus musculus 89-93 33428938-7 2021 Given that, among GPR6CA ligands tested, GluOC and ornithine increased the expression of ATGL in cultured 3T3-L1 adipocytes in a manner dependent on GPRC6A, our results suggest that the constitutive activation of GPRC6A signaling in adipocytes by GluOC or ornithine plays a key role in adipose lipid handling and the prevention of obesity and related metabolic disorders. Ornithine 51-60 G protein-coupled receptor, family C, group 6, member A Mus musculus 149-155 33428938-7 2021 Given that, among GPR6CA ligands tested, GluOC and ornithine increased the expression of ATGL in cultured 3T3-L1 adipocytes in a manner dependent on GPRC6A, our results suggest that the constitutive activation of GPRC6A signaling in adipocytes by GluOC or ornithine plays a key role in adipose lipid handling and the prevention of obesity and related metabolic disorders. Ornithine 256-265 patatin-like phospholipase domain containing 2 Mus musculus 89-93 33428938-7 2021 Given that, among GPR6CA ligands tested, GluOC and ornithine increased the expression of ATGL in cultured 3T3-L1 adipocytes in a manner dependent on GPRC6A, our results suggest that the constitutive activation of GPRC6A signaling in adipocytes by GluOC or ornithine plays a key role in adipose lipid handling and the prevention of obesity and related metabolic disorders. Ornithine 256-265 G protein-coupled receptor, family C, group 6, member A Mus musculus 213-219 32770108-1 2021 Pyrroline-5-carboxylate synthase (P5CS) catalyzes the synthesis of pyrroline-5-carboxylate (P5C), a key precursor for the synthesis of proline and ornithine. Ornithine 147-156 aldehyde dehydrogenase 18 family member A1 Homo sapiens 0-32 33068755-3 2021 OAT is mainly involved in ornithine catabolism in adults, thus explaining the hyperornithinemia as hallmark of the disease. Ornithine 26-35 ornithine aminotransferase Homo sapiens 0-3 32770108-1 2021 Pyrroline-5-carboxylate synthase (P5CS) catalyzes the synthesis of pyrroline-5-carboxylate (P5C), a key precursor for the synthesis of proline and ornithine. Ornithine 147-156 aldehyde dehydrogenase 18 family member A1 Homo sapiens 34-38 33181436-4 2020 OTC, which is a widely distributed enzyme in microorganisms, mammals, and higher plants, catalyzes the conversion of ornithine to citrulline. Ornithine 117-126 ornithine transcarbamylase Sus scrofa 0-3 33364460-1 2020 l-proline (Pro) is a precursor of ornithine, which is converted into polyamines via ornithine decarboxylase (ODC). Ornithine 34-43 ornithine decarboxylase 1 Sus scrofa 84-107 33364460-1 2020 l-proline (Pro) is a precursor of ornithine, which is converted into polyamines via ornithine decarboxylase (ODC). Ornithine 34-43 ornithine decarboxylase 1 Sus scrofa 109-112 33128544-1 2020 Arginase I (ARG1) is a cytosolic enzyme that catalyzes the hydrolysis of L-arginine to L-ornithine and urea. Ornithine 87-98 arginase 1 Homo sapiens 12-16 32980952-1 2020 Cationic amino acid transporter 1 (Cat-1 alias Slc7a1) is a Na+-independent carrier system involved in transport and absorption of the cationic amino acids lysine, arginine, histidine, and ornithine and has also been shown to be indispensable in a large variety of biological processes. Ornithine 189-198 solute carrier family 7 member 1a Danio rerio 47-53 32721946-1 2020 Arginase 1 (Arg1), which converts L-arginine into ornithine and urea, exerts pleiotropic immunoregulatory effects. Ornithine 50-59 arginase, liver Mus musculus 0-10 32721946-1 2020 Arginase 1 (Arg1), which converts L-arginine into ornithine and urea, exerts pleiotropic immunoregulatory effects. Ornithine 50-59 arginase, liver Mus musculus 12-16 32899962-7 2020 Moreover, increased proline oxidation capacity was detected in MPC1def flies, which was associated with generally lower levels of several metabolites, and particularly those involved in amino acid catabolism such as ornithine, citrulline, and arginosuccinate. Ornithine 216-225 Mitochondrial pyruvate carrier Drosophila melanogaster 63-70 32721242-1 2020 Background: Arginase I, encoded by the ARG1 gene, is an enzyme that catalyzes the conversion of arginine to ornithine in the urea cycle; mutations in this gene has recently been reported to be associated with dilated cardiomyopathy (DCM) in Pakistan. Ornithine 108-117 arginase 1 Homo sapiens 39-43 32848891-7 2020 OPN positively correlates with 2,3-dinor-8isoPGF2a levels (p = 0.02), ornithine (p = 0.01), ADMA (p = 0.001), SDMA (p = 0.03), and citrulline (p = 0.008) levels only in CAD patients. Ornithine 70-79 secreted phosphoprotein 1 Homo sapiens 0-3 32504080-1 2020 Lysinuric protein intolerance (LPI) is an inborn error of cationic amino acid (arginine, lysine, ornithine) transport caused by biallelic pathogenic variants in SLC7A7, which encodes the light subunit of the y+LAT1 transporter. Ornithine 97-106 solute carrier family 7 (cationic amino acid transporter, y+ system), member 7 Mus musculus 161-167 33192610-5 2020 For example, through a combination of steady state measurements and 13C6 15N4-arginine tracing experiments, we report an increase in arginine catabolism into ornithine in humans, suggestive of species-specific arginase 1 activity and nitric oxide synthesis-an observation that may impact the translatability of cardiovascular disease studies carried out in non-human primates (NHPs). Ornithine 158-167 arginase 1 Homo sapiens 210-220 32418491-1 2020 Arginase-1, which converts the amino acid L-arginine into L-ornithine and urea, is a promising new drug target for cancer immunotherapy, as it has a role in the regulation of T-cell immunity in the tumor microenvironment. Ornithine 58-69 arginase 1 Homo sapiens 0-10 32767470-4 2020 In the catalysis axis (pathway), ODC converts ornithine to putrescine. Ornithine 46-55 ornithine decarboxylase 1 Homo sapiens 33-36 32882842-6 2020 OAT is the main catabolic enzyme for ornithine, and its expression was significantly decreased by tryptophan administration. Ornithine 37-46 ornithine aminotransferase Rattus norvegicus 0-3 32882842-11 2020 We speculate that the increase in ornithine level through suppression of OAT expression by tryptophan administration may lead to accelerated polyamine synthesis, thereby promoting protein synthesis in the liver. Ornithine 34-43 ornithine aminotransferase Rattus norvegicus 73-76