PMID-sentid Pub_year Sent_text compound_name comp_offset prot_official_name organism prot_offset 8963944-4 1996 The major N-alkyl PP, N-griseofulvin PP, which is devoid of ferrochelatase-inhibitory activity, was shown to be the precursor of N-methyl PP, which is a potent ferrochelatase inhibitor. N-methylprotoporphyrin IX 129-140 ferrochelatase Gallus gallus 160-174 32716567-7 2020 An intravitreal injection of the FECH inhibitor N-methyl protoporphyrin had similar effects. N-methylprotoporphyrin IX 48-71 ferrochelatase Mus musculus 33-37 8308010-9 1994 Specifically, the recombinant ferrochelatase has iron and porphyrin as substrates, and N-methylprotoporphyrin and metal ions (e.g. Hg2+ and Mn2+), as strong inhibitors of its enzyme activity. N-methylprotoporphyrin IX 87-109 ferrochelatase Homo sapiens 30-44 2283668-1 1990 A hepatic green pigment, inhibitory toward ferrochelatase, has been isolated from the liver of mice treated with griseofulvin, isogriseofulvin, or 3,5-diethoxycarbonyl-1,4-dihydrocollidine and has been shown to exhibit identical chromatographic characteristics to authentic N-methyl protoporphyrin. N-methylprotoporphyrin IX 274-297 ferrochelatase Mus musculus 43-57 3477226-4 1987 N-Methylprotoporphyrin at nanomolar concentrations also strongly inhibited ferrochelatase activity, but had no inhibitory effect on cellular haem production. N-methylprotoporphyrin IX 0-22 ferrochelatase Mus musculus 75-89 6896292-0 1982 Inhibition of ferrochelatase by N-methylprotoporphyrin IX is not accompanied by delta-aminolevulinic acid synthetase induction in chick embryo liver cell culture. N-methylprotoporphyrin IX 32-57 ferrochelatase Gallus gallus 14-28 6896292-1 1982 N-Methylprotoporphyrin has been shown to markedly inhibit ferrochelatase activity in chick embryo liver cell culture without inducing delta-aminolevulinic acid (ALA) synthetase activity. N-methylprotoporphyrin IX 0-22 ferrochelatase Gallus gallus 58-72 32912968-4 2020 Herein we find that treating primary hepatocytes with MDB-inducing agents (N-methylprotoporphyrin (NMPP), protoporphyrin IX (PPIX), or Zinc-protoporphyrin IX (ZnPP)) elicited an IkBa-loss with consequent NF-kB activation. N-methylprotoporphyrin IX 75-97 NFKB inhibitor alpha Homo sapiens 178-182 8494497-6 1993 The ATMP pigment markedly inhibited the enzyme ferrochelatase in vitro, thus supporting its identification as N-methyl protoporphyrin. N-methylprotoporphyrin IX 110-133 ferrochelatase Mus musculus 47-61 1764043-7 1991 These findings suggest that cytochrome P-450 is involved in the mechanism of griseofulvin-induced protoporphyria by generating N-methylprotoporphyrin. N-methylprotoporphyrin IX 127-149 cytochrome P450, family 21, subfamily a, polypeptide 1 Mus musculus 28-44 16668110-11 1991 The potent ferrochelatase inhibitors, N-methylmesoporphyrin and N-methylprotoporphyrin, inhibited Mg-chelatase at micromolar concentrations. N-methylprotoporphyrin IX 64-86 ferrochelatase-2, chloroplastic-like Cucumis sativus 11-25 2012610-2 1991 A hepatic green pigment with inhibitory properties towards the enzyme ferrochelatase has been isolated from the liver of mice treated with griseofulvin and identified as N-methylprotoporphyrin. N-methylprotoporphyrin IX 170-192 ferrochelatase Mus musculus 70-84 2804139-4 1989 The data obtained demonstrate that mouse ferrochelatase binds a wide variety of porphyrins and metalloporphyrins with kd values ranging from 6 nM for N-methylprotoporphyrin to 1.08 microM for coproporphyrin III. N-methylprotoporphyrin IX 150-172 ferrochelatase Mus musculus 41-55 3218729-3 1988 That zinc chelatase and ferrochelatase activities reside in the same enzyme was shown by the competitive action of ferrous ions and the inhibitory effects of N-methyl protoporphyrin (a specific inhibitor of heme synthetase) on zinc chelatase. N-methylprotoporphyrin IX 158-181 ferrochelatase Homo sapiens 207-222 6390167-5 1984 DDC has been found to cause the accumulation of a green pigment, identified as N-methyl protoporphyrin IX (N-MePP), which is a potent inhibitor of ferrochelatase. N-methylprotoporphyrin IX 79-105 ferrochelatase Gallus gallus 147-161 6390167-5 1984 DDC has been found to cause the accumulation of a green pigment, identified as N-methyl protoporphyrin IX (N-MePP), which is a potent inhibitor of ferrochelatase. N-methylprotoporphyrin IX 107-113 ferrochelatase Gallus gallus 147-161 6688622-9 1983 N-Methylprotoporphyrin, a toxic by-product of the metabolism of some drugs, was found to inhibit ferrochelatase in a competitive fashion with respect to porphyrin with a Ki of 7 nM and uncompetitive with respect to iron. N-methylprotoporphyrin IX 0-22 FECH Bos taurus 97-111 28347842-5 2017 RESULTS: The blockade of heme biosynthesis by succinylacetone and N-methyl protoporphyrin, which are inhibitors of heme biosynthesis, markedly decreased the induction of HO-1. N-methylprotoporphyrin IX 66-89 heme oxygenase 1 Homo sapiens 170-174 29985945-7 2018 Treatment of BCAs with NMPP initiated a time- and dose-dependent attenuation of FECH activity without changes in its protein expression, followed by significant reduction in the heme level. N-methylprotoporphyrin IX 23-27 ferrochelatase Homo sapiens 80-84 29985945-8 2018 Moreover, ACh-induced relaxation and ACh-stimulated release of NO were significant reduced, associated with suppression of eNOS protein expression in NMPP-treated groups. N-methylprotoporphyrin IX 150-154 nitric oxide synthase 3 Homo sapiens 123-127 19698763-7 2009 The heme synthesis inhibitor N-methylprotoporphyrinIX (NMP) lengthened the circadian period of SCN PER2::LUC rhythms by about an hour. N-methylprotoporphyrin IX 29-53 period circadian clock 2 Mus musculus 99-103 26343413-7 2015 N-methyl PPIX strongly inhibits ferrochelatase, the enzyme that converts PPIX to heme, and leads to PPIX accumulation. N-methylprotoporphyrin IX 0-13 ferrochelatase Mus musculus 32-46 25414439-8 2015 That ferrochelatase is essential to parasite growth was confirmed by showing that inhibition of ferrochelatase using the specific competitive inhibitor, N-methylprotoporphyrin, produced a potent growth inhibition effect against cultures of P falciparum. N-methylprotoporphyrin IX 153-175 ferrochelatase Homo sapiens 5-19 25414439-8 2015 That ferrochelatase is essential to parasite growth was confirmed by showing that inhibition of ferrochelatase using the specific competitive inhibitor, N-methylprotoporphyrin, produced a potent growth inhibition effect against cultures of P falciparum. N-methylprotoporphyrin IX 153-175 ferrochelatase Homo sapiens 96-110 22859313-6 2012 CYP2A5 was intensively and HMOX1 moderately elevated in heme synthesis blockades by succinylacetone and N-methyl protoporphyrin IX, and Nrf2 partially mediated the induction of CYP2A5. N-methylprotoporphyrin IX 104-130 cytochrome P450, family 2, subfamily a, polypeptide 5 Mus musculus 0-6 22859313-6 2012 CYP2A5 was intensively and HMOX1 moderately elevated in heme synthesis blockades by succinylacetone and N-methyl protoporphyrin IX, and Nrf2 partially mediated the induction of CYP2A5. N-methylprotoporphyrin IX 104-130 heme oxygenase 1 Mus musculus 27-32 19698763-7 2009 The heme synthesis inhibitor N-methylprotoporphyrinIX (NMP) lengthened the circadian period of SCN PER2::LUC rhythms by about an hour. N-methylprotoporphyrin IX 55-58 period circadian clock 2 Mus musculus 99-103 15769864-4 2005 In contrast, the rate of de novo CYP2B1/2 protein synthesis was found to be dramatically inhibited in both DDEP- and NMPP-treated hepatocytes. N-methylprotoporphyrin IX 117-121 cytochrome P450, family 2, subfamily b, polypeptide 1 Rattus norvegicus 33-39 19002554-3 2009 We repressed heme synthesis in cells by inhibiting ferrochelatase enzyme with small interfering RNA and N-methylprotoporphyrin IX. N-methylprotoporphyrin IX 104-129 ferrochelatase Homo sapiens 51-65 16792525-0 2006 Modulation of inhibition of ferrochelatase by N-methylprotoporphyrin. N-methylprotoporphyrin IX 46-68 ferrochelatase Homo sapiens 28-42 16792525-2 2006 NMPP (N-methylprotoporphyrin), a transition-state analogue and potent inhibitor of ferrochelatase, is commonly used to induce haem deficiency in mammalian cell cultures. N-methylprotoporphyrin IX 0-4 ferrochelatase Homo sapiens 83-97 16792525-2 2006 NMPP (N-methylprotoporphyrin), a transition-state analogue and potent inhibitor of ferrochelatase, is commonly used to induce haem deficiency in mammalian cell cultures. N-methylprotoporphyrin IX 6-28 ferrochelatase Homo sapiens 83-97 16792525-3 2006 To create ferrochelatase variants with different extents of tolerance towards NMPP and to understand further the mechanism of ferrochelatase inhibition by NMPP, we isolated variants with increased NMPP resistance, bearing mutations in an active-site loop (murine ferrochelatase residues 248-257), which was previously shown to mediate a protein conformational change triggered by porphyrin binding. N-methylprotoporphyrin IX 155-159 ferrochelatase Mus musculus 126-140 16792525-3 2006 To create ferrochelatase variants with different extents of tolerance towards NMPP and to understand further the mechanism of ferrochelatase inhibition by NMPP, we isolated variants with increased NMPP resistance, bearing mutations in an active-site loop (murine ferrochelatase residues 248-257), which was previously shown to mediate a protein conformational change triggered by porphyrin binding. N-methylprotoporphyrin IX 155-159 ferrochelatase Mus musculus 126-140 16792525-3 2006 To create ferrochelatase variants with different extents of tolerance towards NMPP and to understand further the mechanism of ferrochelatase inhibition by NMPP, we isolated variants with increased NMPP resistance, bearing mutations in an active-site loop (murine ferrochelatase residues 248-257), which was previously shown to mediate a protein conformational change triggered by porphyrin binding. N-methylprotoporphyrin IX 155-159 ferrochelatase Mus musculus 126-140 16792525-3 2006 To create ferrochelatase variants with different extents of tolerance towards NMPP and to understand further the mechanism of ferrochelatase inhibition by NMPP, we isolated variants with increased NMPP resistance, bearing mutations in an active-site loop (murine ferrochelatase residues 248-257), which was previously shown to mediate a protein conformational change triggered by porphyrin binding. N-methylprotoporphyrin IX 155-159 ferrochelatase Mus musculus 126-140 16792525-5 2006 While the binding affinity of the P255X variants for NMPP decreased by one order of magnitude in relation to that of wild-type enzyme, the inhibition constant increased by approximately two orders of magnitude (K(i)(app) values of 1 microM and 2.3 microM for P255R and P255G respectively, as against 3 nM for wild-type ferrochelatase). N-methylprotoporphyrin IX 53-57 ferrochelatase Mus musculus 319-333 16792525-7 2006 Further, although NMPP binding to either wild-type ferrochelatase or P255R occurred via a similar two-step kinetic mechanism, the forward and reverse rate constants associated with the second and rate-limiting step were comparable for the two enzymes. N-methylprotoporphyrin IX 18-22 ferrochelatase Homo sapiens 51-65 16306232-6 2006 Inhibition of heme synthesis (by 70-80%) at different enzymic steps by succinyl acetone and N-methylprotoporphyrin IX resulted in the earlier lowered expression of NMDAzeta1 and -epsilon2 and NF-L. N-methylprotoporphyrin IX 92-117 neurofilament, light polypeptide Mus musculus 192-196 12417755-2 2002 Heme deficiency was induced with N-methylprotoporphyrin IX, a selective inhibitor of ferrochelatase, in two human brain cell lines, SHSY5Y (neuroblastoma) and U373 (astrocytoma), as well as in rat primary hippocampal neurons. N-methylprotoporphyrin IX 33-58 ferrochelatase Homo sapiens 85-99 10795314-4 2000 The activity of the ferrochelatase was inhibited by N-methylprotoporphyrin IX (I50 = 4 nM). N-methylprotoporphyrin IX 52-77 ferrochelatase-2, chloroplastic-like Cucumis sativus 20-34 10725301-0 2000 N-Methylprotoporphyrin is a more potent inhibitor of recombinant human than of recombinant chicken ferrochelatase. N-methylprotoporphyrin IX 0-22 ferrochelatase Gallus gallus 99-113 10725301-1 2000 The potency of N-methylprotoporphyrin IX (N-methylPP) as a ferrochelatase (FC) inhibitor has been previously studied using crude chick embryo liver FC preparations. N-methylprotoporphyrin IX 15-40 ferrochelatase Gallus gallus 59-73 10725301-1 2000 The potency of N-methylprotoporphyrin IX (N-methylPP) as a ferrochelatase (FC) inhibitor has been previously studied using crude chick embryo liver FC preparations. N-methylprotoporphyrin IX 15-40 ferrochelatase Gallus gallus 75-77 10725301-1 2000 The potency of N-methylprotoporphyrin IX (N-methylPP) as a ferrochelatase (FC) inhibitor has been previously studied using crude chick embryo liver FC preparations. N-methylprotoporphyrin IX 15-40 ferrochelatase Gallus gallus 148-150 10725301-3 2000 The first objective of this study was to compare the potency of N-methylPP as an inhibitor of purified chicken FC and crude chick embryo liver FC. N-methylprotoporphyrin IX 64-74 ferrochelatase Gallus gallus 111-113 10725301-3 2000 The first objective of this study was to compare the potency of N-methylPP as an inhibitor of purified chicken FC and crude chick embryo liver FC. N-methylprotoporphyrin IX 64-74 ferrochelatase Gallus gallus 143-145 10725301-4 2000 The EC(50) values of N-methylPP previously observed in crude chick embryo liver FC was 2.9 x 10(-3) nmol/mg protein, and with purified recombinant chicken FC was 2.07 x 10(-3) nmol/mg protein. N-methylprotoporphyrin IX 21-31 ferrochelatase Gallus gallus 80-82 10725301-6 2000 The second objective of this study was to compare the potency of N-methylPP between purified human and chicken FC. N-methylprotoporphyrin IX 65-75 ferrochelatase Gallus gallus 111-113 10725301-7 2000 The EC(50) value of N-methylPP observed in the purified human FC preparation was 1.7 x 10(-6) nmol/mg protein (chicken FC 2.07 x 10(-3) nmol/mg protein). N-methylprotoporphyrin IX 20-30 ferrochelatase Gallus gallus 62-64 10725301-8 2000 Thus, the potency of N-methylPP was much higher with purified human FC than with purified chicken FC. N-methylprotoporphyrin IX 21-31 ferrochelatase Gallus gallus 68-70 8806750-4 1996 Inhibition by N-methyl-protoporphyrin IX occurs at IC50 values of 6, 5, and 8 microM for the nNOS, iNOS, and eNOS isoforms, respectively. N-methylprotoporphyrin IX 14-40 nitric oxide synthase 1, neuronal Mus musculus 93-97 8806750-4 1996 Inhibition by N-methyl-protoporphyrin IX occurs at IC50 values of 6, 5, and 8 microM for the nNOS, iNOS, and eNOS isoforms, respectively. N-methylprotoporphyrin IX 14-40 nitric oxide synthase 2, inducible Mus musculus 99-103