PMID-sentid Pub_year Sent_text compound_name comp_offset prot_official_name organism prot_offset 17868038-2 2008 GMPS, a G-type amidotransferase, catalyses the amination of XMP to GMP with the reaction occurring in two domains, the GAT (glutamine amidotransferase) and ATPPase (ATP pyrophosphatase). xanthosine monophosphate 60-63 guanine monophosphate synthase Homo sapiens 0-4 17868038-5 2008 Our studies aimed at understanding the kinetic mechanism of PfGMPS (Plasmodium falciparum GMPS) indicated steady-state ordered binding of ATP followed by XMP to the ATPPase domain with glutamine binding in a random manner to the GAT domain. xanthosine monophosphate 154-157 guanine monophosphate synthase Homo sapiens 62-66 15699053-2 2005 In rat brain extracts and in intact LoVo cells, xanthosine is salvaged to XMP via the phosphotransferase activity of cytosolic 5"-nucleotidase. xanthosine monophosphate 74-77 5'-nucleotidase ecto Homo sapiens 127-142 17324932-4 2007 Crystal structures of bifunctional ATIC in complex with nucleoside 2 and nucleotide 3 revealed IMPCH binding modes similar to that of the IMPCH feedback inhibitor, xanthosine 5"-monophosphate. xanthosine monophosphate 164-191 5-aminoimidazole-4-carboxamide ribonucleotide formyltransferase/IMP cyclohydrolase Homo sapiens 35-39 15699053-6 2005 Thus, phosphorylation of xanthosine by cytosolic 5"-nucleotidase circumvents the activity of IMP dehydrogenase, a rate-limiting enzyme, catalyzing the NAD(+)-dependent conversion of IMP to XMP at the branch point of de novo nucleotide synthesis, thus leading to the generation of guanine nucleotides. xanthosine monophosphate 189-192 5'-nucleotidase ecto Homo sapiens 49-64 12501179-4 2002 Hence, the crystal structure of dimeric avian ATIC was determined as a complex with the AICAR Tfase substrate AICAR, as well as with an IMP cyclohydrolase inhibitor, XMP, to 1.93 A resolution. xanthosine monophosphate 166-169 5-aminoimidazole-4-carboxamide ribonucleotide formyltransferase/IMP cyclohydrolase Homo sapiens 46-50 10758003-2 2000 Inosine 5"- monophosphate dehydrogenase (IMPDH) is the enzyme that catalyzes the oxidation of IMP to XMP with the concomitant reduction of nicotinamide adenine dinucleotide (from NAD(+) to NADH). xanthosine monophosphate 101-104 inosine-5'-monophosphate dehydrogenase 2 Cricetulus griseus 41-46 10545171-1 1999 The crystal structure of the Toxoplasma gondii hypoxanthine-guanine phosphoribosyltransferase (HGPRT)-xanthosine 5"-monophosphate (XMP)-pyrophosphate-Mg(2+) ternary complex has been determined at 1. xanthosine monophosphate 102-129 hypoxanthine phosphoribosyltransferase 1 Homo sapiens 95-100 10683258-1 2000 Inosine 5"-monophosphate dehydrogenase (IMPDH) catalyzes the oxidation of inosine 5"-monophosphate (IMP) to xanthosine 5"-monophosphate with the concomitant reduction of NAD to NADH. xanthosine monophosphate 108-135 inosine-5'-monophosphate dehydrogenase 2 Cricetulus griseus 40-45 10545171-1 1999 The crystal structure of the Toxoplasma gondii hypoxanthine-guanine phosphoribosyltransferase (HGPRT)-xanthosine 5"-monophosphate (XMP)-pyrophosphate-Mg(2+) ternary complex has been determined at 1. xanthosine monophosphate 131-134 hypoxanthine phosphoribosyltransferase 1 Homo sapiens 95-100 1671845-1 1991 Inosinic acid (IMP) dehydrogenase (IMPD) catalyzes the conversion of IMP to XMP as the first committed step in GMP biosynthesis de novo. xanthosine monophosphate 76-79 inosine monophosphate dehydrogenase 2 Mus musculus 35-39 7559506-2 1995 GMP synthetase (EC 6.3.5.2) is an amidotransferase that catalyzes the amination of xanthosine 5"-monophosphate to form GMP in the presence of glutamine and ATP. xanthosine monophosphate 83-110 guanine monophosphate synthase Homo sapiens 0-14 7706277-13 1995 Interaction of GMP synthetase with xanthosine 5"-monophosphate (XMP), a substrate, exhibits sigmoidal kinetics with a Hill coefficient of 1.48 +/- 0.07. xanthosine monophosphate 35-62 guanine monophosphate synthase Homo sapiens 15-29 7706277-13 1995 Interaction of GMP synthetase with xanthosine 5"-monophosphate (XMP), a substrate, exhibits sigmoidal kinetics with a Hill coefficient of 1.48 +/- 0.07. xanthosine monophosphate 64-67 guanine monophosphate synthase Homo sapiens 15-29 7706277-14 1995 This positive cooperativity is not due to ligand-induced oligomerization, since GMP synthetase remains a monomer in the presence of XMP and other substrates. xanthosine monophosphate 132-135 guanine monophosphate synthase Homo sapiens 80-94 7706277-15 1995 Decoyinine, a selective inhibitor of GMP synthetase, inhibits the human enzyme reversibly with uncompetitive inhibition kinetics toward glutamine and XMP and non-competitive kinetics toward ATP. xanthosine monophosphate 150-153 guanine monophosphate synthase Homo sapiens 37-51 1761576-4 1991 Subsequent genetic and biochemical analyses identified a p53 induction-related purine pathway defect which was localized to the step of inosine 5"-monophosphate conversion to xanthosine 5"-monophosphate. xanthosine monophosphate 175-202 transformation related protein 53, pseudogene Mus musculus 57-60 29042184-5 2018 The majority of nucleotide ligands bind selectively at one of the two active sites with the exception of xanthosine monophosphate, XMP, which, in addition to binding in both AICARFT and IMPCH active sites, shows evidence for cooperative binding with communication between symmetrically-related active sites in the two IMPCH domains. xanthosine monophosphate 131-134 5-aminoimidazole-4-carboxamide ribonucleotide formyltransferase/IMP cyclohydrolase Homo sapiens 174-181 35102890-8 2022 Analysis of the substrate-binding pockets of A. fumigatus GMP synthase reveals key differences in the ATP- and XMP-binding sites that can be exploited for species-specific inhibitor drug design. xanthosine monophosphate 111-114 guanine monophosphate synthase Homo sapiens 58-70 2789248-1 1989 The endocytosis of Ag mediated by membrane-associated Ig (mIg) molecules has been spectrophotometrically monitored using a cell line (2C3) specific for the hapten phthalate (Xmp) and employing conjugates of Xmp and horseradish peroxidase (HRP) as the labeled ligand. xanthosine monophosphate 174-177 chemokine (C-X-C motif) ligand 9 Mus musculus 54-56 2789248-1 1989 The endocytosis of Ag mediated by membrane-associated Ig (mIg) molecules has been spectrophotometrically monitored using a cell line (2C3) specific for the hapten phthalate (Xmp) and employing conjugates of Xmp and horseradish peroxidase (HRP) as the labeled ligand. xanthosine monophosphate 174-177 chemokine (C-X-C motif) ligand 9 Mus musculus 58-61 2789248-1 1989 The endocytosis of Ag mediated by membrane-associated Ig (mIg) molecules has been spectrophotometrically monitored using a cell line (2C3) specific for the hapten phthalate (Xmp) and employing conjugates of Xmp and horseradish peroxidase (HRP) as the labeled ligand. xanthosine monophosphate 207-210 chemokine (C-X-C motif) ligand 9 Mus musculus 54-56 2789248-1 1989 The endocytosis of Ag mediated by membrane-associated Ig (mIg) molecules has been spectrophotometrically monitored using a cell line (2C3) specific for the hapten phthalate (Xmp) and employing conjugates of Xmp and horseradish peroxidase (HRP) as the labeled ligand. xanthosine monophosphate 207-210 chemokine (C-X-C motif) ligand 9 Mus musculus 58-61 2822457-5 1987 dNase activity occurred with both purine and pyrimidine substrates and was maximal with deoxy analogs (dIMP much greater than dUMP greater than dGMP greater than dTMP = dAMP much greater than dCMP) at a pH optimum of 6.2, but slight cross-reactivity occurred with some nondeoxy substrates (IMP greater than GMP greater than UMP = XMP greater than CMP). xanthosine monophosphate 330-333 Deoxyribonuclease II Drosophila melanogaster 0-5 26756917-1 2016 Human Guanine Monophosphate Synthetase (hGMPS) converts XMP to GMP, and acts as a bifunctional enzyme with N-terminal "glutaminase" (GAT) and C-terminal "synthetase" domain. xanthosine monophosphate 56-59 guanine monophosphate synthase Homo sapiens 6-38 26756917-1 2016 Human Guanine Monophosphate Synthetase (hGMPS) converts XMP to GMP, and acts as a bifunctional enzyme with N-terminal "glutaminase" (GAT) and C-terminal "synthetase" domain. xanthosine monophosphate 56-59 guanine monophosphate synthase Homo sapiens 40-45 26043892-2 2015 The purine salvage pathway is redundant and contains two routes to guanosine-5"-monophosphate (GMP) formation: conversion from xanthosine-5"-monophosphate (XMP) by GMP synthase (GMPS) or direct salvage of guanine by hypoxanthine-guanine phosphoribosyltransferase (HGPRT). xanthosine monophosphate 127-154 guanine monophosphate synthetase Mus musculus 178-182 26043892-2 2015 The purine salvage pathway is redundant and contains two routes to guanosine-5"-monophosphate (GMP) formation: conversion from xanthosine-5"-monophosphate (XMP) by GMP synthase (GMPS) or direct salvage of guanine by hypoxanthine-guanine phosphoribosyltransferase (HGPRT). xanthosine monophosphate 156-159 guanine monophosphate synthetase Mus musculus 178-182 25869206-4 2015 In this study, we report that in PCa cells de novo purine biosynthesis and the subsequent conversion to XMP is tightly regulated by MYC and independent of AR activity. xanthosine monophosphate 104-107 MYC proto-oncogene, bHLH transcription factor Homo sapiens 132-135 23816837-5 2013 Substrate XMP was bound in the crystal structure of the human GMPS enzyme. xanthosine monophosphate 10-13 guanine monophosphate synthase Homo sapiens 62-66 23841499-3 2013 Guanosine 5"-monophosphate synthetase (GMPS) is one of three glutamine amidotransferases in de novo purine biosynthesis and is responsible for the last step in the guanosine branch of the pathway, the amination of xanthosine 5"-monophosphate (XMP). xanthosine monophosphate 214-241 guanine monophosphate synthase Homo sapiens 0-37 23841499-3 2013 Guanosine 5"-monophosphate synthetase (GMPS) is one of three glutamine amidotransferases in de novo purine biosynthesis and is responsible for the last step in the guanosine branch of the pathway, the amination of xanthosine 5"-monophosphate (XMP). xanthosine monophosphate 214-241 guanine monophosphate synthase Homo sapiens 39-43 23841499-3 2013 Guanosine 5"-monophosphate synthetase (GMPS) is one of three glutamine amidotransferases in de novo purine biosynthesis and is responsible for the last step in the guanosine branch of the pathway, the amination of xanthosine 5"-monophosphate (XMP). xanthosine monophosphate 243-246 guanine monophosphate synthase Homo sapiens 0-37 23841499-3 2013 Guanosine 5"-monophosphate synthetase (GMPS) is one of three glutamine amidotransferases in de novo purine biosynthesis and is responsible for the last step in the guanosine branch of the pathway, the amination of xanthosine 5"-monophosphate (XMP). xanthosine monophosphate 243-246 guanine monophosphate synthase Homo sapiens 39-43 22119138-2 2012 The conversion of XMP to GMP is catalyzed by guaA-encoded GMP synthetase (GMPS), and deletions in the Shiguella flexneri guaBA operon led to an attenuated auxotrophic strain. xanthosine monophosphate 18-21 GMP synthase Mycobacterium tuberculosis H37Rv 45-49 21486037-0 2011 Hypoxanthine guanine phosphoribosyltransferase distorts the purine ring of nucleotide substrates and perturbs the pKa of bound xanthosine monophosphate. xanthosine monophosphate 127-151 hypoxanthine phosphoribosyltransferase 1 Homo sapiens 0-46 21486037-7 2011 We used ultraviolet resonance Raman spectroscopy to study the complexes of HGPRT with products (IMP, GMP, and XMP), in both organisms, in resonance with the purine nucleobase electronic absorption. xanthosine monophosphate 110-113 hypoxanthine phosphoribosyltransferase 1 Homo sapiens 75-80 21486037-12 2011 While hHGPRT does not bind XMP, PfHGPRT perturbs the pK(a) of bound XMP. xanthosine monophosphate 68-71 hypoxanthine phosphoribosyltransferase 1 Homo sapiens 6-12 19900465-7 2010 We have also demonstrated that PH-GATase (the glutamine amidotransferase subunit of the two-subunit-type GMPS from the hyperthermophilic archaeon P. horikoshii OT3) alone is inactive, and that all substrates of PH-ATPPase except for ammonia (Mg(2+), ATP and XMP) are required to stabilize the active complex of PH-ATPPase and PH-GATase subunits. xanthosine monophosphate 258-261 type 1 glutamine amidotransferase Pyrococcus horikoshii OT3 34-40 19900465-7 2010 We have also demonstrated that PH-GATase (the glutamine amidotransferase subunit of the two-subunit-type GMPS from the hyperthermophilic archaeon P. horikoshii OT3) alone is inactive, and that all substrates of PH-ATPPase except for ammonia (Mg(2+), ATP and XMP) are required to stabilize the active complex of PH-ATPPase and PH-GATase subunits. xanthosine monophosphate 258-261 type 1 glutamine amidotransferase Pyrococcus horikoshii OT3 46-72