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Hypoxanthine guanine phosphoribosyltransferase hgprt

Hypoxanthine-guanine phosphoribosyltransferase (HGPRT) is an enzyme encoded in humans by the HPRT1 gene. HGPRT is a transferase that catalyzes conversion of hypoxanthine to inosine monophosphate and guanine to guanosine monophosphate. This reaction transfers the 5-phosphoribosyl group from 5-phosphoribosyl 1-pyrophosphate (PRPP) to the purine The enzyme hypoxanthine-guanine phosphoribosyltransferase (HGPRT) is one of the central enzymes that recycle the building blocks of RNA and DNA. It attaches a purine base (either guanine or hypoxanthine, a modified form of adenine) to a sugar, creating a nucleotide Le syndrome de Kelley-Seegmiller (SKS) est la forme la plus légère du déficit en hypoxanthine-guanine phosphoribosyl-transférase (HGPRT ; voir ce terme), une maladie héréditaire du métabolisme des purines, et il se manifeste par une surproduction en acide urique (SAU) avec lithiase et goutte précoce. ORPHA:7923 HGPRT is a transferase that catalyzes conversion of hypoxanthine to inosine monophosphate and guanine to guanosine monophosphate. This reaction transfers the 5-phosphoribosyl group from 5-phosphoribosyl 1-pyrophosphate (PRPP) to the purine. HGPRT plays a central role in the generation of purine nucleotides through the purine salvage pathway Hypoxanthine-guanine phosphoribosyltransferase (HGPRT) This subpathway is part of the pathway IMP biosynthesis via salvage pathway, which is itself part of Purine metabolism

Hypoxanthine-guanine phosphoribosyltransferase (HPRT) is the enzyme which catalyzes salvage of the purine bases guanine and hypoxanthine into their respective monophosphate nucleoside i.e., guanylic monophosphate (GMP) and inosine monophosphate (IMP) This page is based on the copyrighted Wikipedia article Hypoxanthine-guanine_phosphoribosyltransferase ; it is used under the Creative Commons Attribution-ShareAlike 3.0 Unported License. You may redistribute it, verbatim or modified, providing that you comply with the terms of the CC-BY-SA. Cookie-polic In this way researchers obtain large quantities of antibody molecules that all react against the same antigen. The essential production steps are shown here. In step 2, HGPRT is hypoxanthineguanine phosphoribosyltransferase, an enzyme that allows cells to grow on a medium containing HAT, or hydroxanthine, aminopterin, and thymidine (HGPRT) Il est enzyme codé chez l'homme par gène HPRT1. Le HGPRT est transférase qui catalyse la conversion de 'hypoxanthine à inosine monophosphate guanine en guanosine monophosphate. Cette réaction transfère le groupe 5-fosforibosile de 5-phosphoribosyl-pyrophosphate 1 à la purine L'hypoxanthine-guanine phosphoribosyltransférase (HGPRT) est une glycosyltransférase qui catalyse la réaction : IMP + pyrophosphate ⇌ hypoxanthine + 5-phospho-α-D-ribose-1-diphosphate. Cette enzyme intervient dans la voie de sauvetage des purines

Hypoxanthine-guanine phosphoribosyltransferase - Wikipedi

  1. Hypoxanthine−guanine phosphoribosyltransferase (HGPRTase) is the locus of Lesch-Nyhan syndrome, the activator of the prodrugs 6-mercaptopurine and allopurinol, and a target for antiparasitic chemotherapy. The three-dimensional structure of the recombinant human enzyme in complex with GMP has recently been solved [Eads, J., Scapin, G., Xu, Y., Grubmeyer, C., & Sacchettini, J. C. (1994) Cell.
  2. HPRT1 has a central role in the generation of purine nucleotides through the purine salvage pathway. HPRT1 encodes hypoxanthine phosphoribosyltransferase (), which catalyzes conversion of hypoxanthine to inosine monophosphate and guanine to guanosine monophosphate via transfer of the 5-phosphoribosyl group from 5-phosphoribosyl 1-pyrophosphate (summary by Keebaugh et al., 2007)
  3. Le syndrome de Lesch-Nyhan est une maladie génétique rare en rapport avec un déficit de fonctionnement de l'enzyme hypoxanthine guanine phosphoribosyltransférase. Ce déficit entraîne un retard de développement de l'enfant avec hypotonie généralisée de l'enfant. Il existe à la fois des manifestations d'une atteinte pyramidale et extrapyramidale
  4. Human hypoxanthine guanine phosphoribosyltransferase (HGPRT) catalyzes the phosphoribosylation of guanine and hypoxanthine, while Plasmodium falciparum HGPRT acts on xanthine as well
  5. Proteins known to be involved in this subpathway in this organism are: Hypoxanthine-guanine phosphoribosyltransferase (hprT) This subpathway is part of the pathway IMP biosynthesis via salvage pathway, which is itself part of Purine metabolism
  6. Hypoxanthine- guanine phosphoribosyltransferase (HPRT) deficiency is a hereditary disorder of purine metabolism associated with uric acid overproduction and a continuum spectrum of neurological manifestations depending on the degree of the enzyme deficiency
  7. Converts guanine to guanosine monophosphate, and hypoxanthine to inosine monophosphate. Transfers the 5-phosphoribosyl group from 5-phosphoribosylpyrophosphate onto the purine. Plays a central role in the generation of purine nucleotides through the purine salvage pathway (By similarity).By similarit

Hypoxanthine-guanine phosphoribosyltransferase (HGPRT

Lesch-Nyhan syndrome (LNS) is a rare inherited disorder caused by a deficiency of the enzyme hypoxanthine-guanine phosphoribosyltransferase (HGPRT). This deficiency occurs due to mutations in the HPRT1 gene located on the X chromosome.LNS affects about 1 in 380,000 live births. The disorder was first recognized and clinically characterized by American medical student Michael Lesch and his. Deficiency of hypoxanthine-guanine phosphoribosyltransferase (HPRT) activity is an inborn error of purine metabolism associated with uric acid overproduction and a continuum spectrum of neurological manifestations depending on the degree of the enzymatic deficiency hypoxanthine-guanine phosphoribosyltransferase, HGPRT, HGPRTase, HPRT B, hypoxanthine guanine phosphoribosyl transferase 1. GeneRIFs: Gene References Into Functions . The authors identified the HPRT-associated purine salvaging pathway as a critical contributor to Adult hematopoietic stem cell fitness in response to stress. Additionally, they provide evidence that the preference for HPRT.

Lesch-Nyhan disease (LND) is a rare X-linked inherited neurogenetic disorder of purine metabolism in which the enzyme, hypoxanthine-guanine phosphoribosyltransferase (HGprt) is defective. The authors report a novel point mutation that led to HGprt-related neurological dysfunction (HND) in a family in which there was a missense mutation in exon 6 of the coding region of the HPRT1 gene: g.34938G. These include three genes for a 6-oxopurine phosphoribosyltransferase annotated as hypoxanthine-guanine phosphoribosyltransferase (HGPRT), two adenine phosphoribosyltransferases (APRT), two. The HPRT1 gene provides instructions for producing an enzyme called hypoxanthine phosphoribosyltransferase 1. This enzyme allows cells to recycle purines, a type of building block of DNA and its chemical cousin RNA. Manufacturing purines uses more energy and takes more time than recycling purines, which makes recycling these molecules more efficient

The purine salvage enzyme hypoxanthine-guanine-xanthine phosphoribosyltransferase (HGXPRT) is essential for purine nucleotide and hence nucleic acid synthesis in the malaria parasite, Plasmodium falciparum. Acyclic nucleoside phosphonates (ANPs) are analogues of the nucleotide product of the reaction, comprising a purine base joined by a linker to a phosphonate moiety. Ki values for 19 ANPs. Human hypoxanthine-guanine phosphoribosyltransferase (HGPRT) catalyses the synthesis of the purine nucleoside monophosphates, IMP and GMP, by the addition of a 6-oxopurine base, either hypoxanthine or guanine, to the 1-beta-position of 5-phospho-alpha-d-ribosyl-1-pyrophosphate (PRib-PP). The mechanism is sequential, with PRib-PP binding to the free enzyme prior to the base. After the covalent. Hypoxanthine-guanine phosphoribosyltransférase Structure d'une HGPRT humaine complexée avec un inhibiteur « The 2.0 Å structure of human hypoxanthine-guanine phosphoribosyltransferase in complex with a transition-state analog inhibitor », Nature Structural Biology, vol. 6,‎ 1999, p. 588-593 (lire en ligne) DOI:10.1038/9376 PMID 10360366 ↑ (en) Uros Hladnik, William L. Nyhan et.

PDB-101: Molecule of the Month: Hypoxanthine-guanine

Orphanet: Déficit partiel en hypoxanthine guanine

The Lesch-Nyhan syndrome is a bizarre, X-linked disease characterized by spasticity, choreoathetosis, self-mutilation, mental and growth retardation as well as hyperuricemia and hyperuricaciduria (Lesch and Nyhan,1964) which is due to a striking reduction of hypoxanthine-guanine phosphoribosyltransferase (HGPRT) activity in all tissues of affected individuals (Seegmiller, Rosenbloom and Kelley, 1967; Rosenbloom, et al., 1967) The X-linked, virtually complete deficiency of hypoxanthineguanine phosphoribosyltransferase (HGPRT) activity results in a bizarre neurologic disorder, the Lesch-Nyhan syndrome (Seegmiller, Rosenbloom and Kelley, 1967). In initial reports HGPRT activity was noted as undetectable in erythrocytes from patients with the Lesch-Nyhan syndrome Human hypoxanthine guanine phosphoribosyltransferase (HGPRT) catalyzes the phosphoribosylation of guanine and hypoxanthine, while Plasmodium falciparum HGPRT acts on xanthine as well. PMID: 21486037 dysregulated Wnt signaling and presenilin-1 expression together with impaired expression of dopaminergic transcription factors reveal broad pleitropic neuro-regulatory defects played by HPRT.

demonstrate that human hypoxanthine guanine phosphoribosyltransferase (HGPRT) converts T-705 into its ribose-5 ′-monophosphate (RMP) prior to formation of T-705-RTP. The anti-influenza virus activity of T-705 and T-1105 (3-hydroxy-2-pyrazinamide; the analogue lacking the 6-fluoro atom) was lost in HGPRT-deficient MDCK cells. This HGPRT dependency was confirmed in human HEK293T cells. thine guanine phosphoribosyltransferase (HGPRT) could perform the first step in the activation pathway of T-705, but no experimental data were provided to substantiate this hypothesis. In the.

Hypoxanthine-guanine phosphoribosyltransferase (HPRT) is an enzyme in purine metabolism.It converts hypoxanthine to inosine monophosphate,and in some species, guanine to guanine monophosphate (often renamed as HGPRT). Certain HPRTs can also convert xanthine to xanthine monophosphate. The enzyme primarily functions to salvage purines from degraded DNA to renewed purine synthesis Human Hypoxanthine-guanine phosphoribosyltransferase (HGPRT, EC 2.4.2.8) Synonyms: Hypoxanthine phosphoribosyltransferase, HGPRTase, HPRT NOVO CIB 's human HGPRT enzyme is a 25kDa purified protein cloned by RT-PCR amplification of mRNA extracted from human hepatoma cells and expressed in E.coli. The sequence of cloned HGPRT (accession number P00492) was confirmed by DNA sequencing (100%.

Kevin Ahern's Biochemistry (BB 451/551) at Oregon State

Hypoxanthine-guanine phosphoribosyltransferase (HPRT, EC 2.4.2.8), a key enzyme of the purine salvage pathway, is encoded by highly variable HPRT1 gene. More than 300 mutations in HPRT1 gene associated with genetic disorders in humans have been described leading to partial or complete deficiency of HPRT enzyme We here demonstrate that human hypoxanthine guanine phosphoribosyltransferase (HGPRT) converts T-705 into its ribose-5′-monophosphate (RMP) prior to formation of T-705-RTP. The anti-influenza virus activity of T-705 and T-1105 (3-hydroxy-2-pyrazinecarboxamide; the analog lacking the 6-fluoro atom) was lost in HGPRT-deficient Madin-Darby canine kidney cells. This HGPRT dependency was.

Hypoxanthine-guanine phosphoribosyltransferase - WikiMili

We here demonstrate that human hypoxanthine guanine phosphoribosyltransferase (HGPRT) converts T-705 into its ribose-5'-monophosphate (RMP) prior to formation of T-705-RTP. The anti-influenza virus activity of T-705 and T-1105 (3-hydroxy-2-pyrazinecarboxamide; the analog lacking the 6-fluoro atom) was lost in HGPRT-deficient Madin-Darby canine kidney cells. This HGPRT dependency was confirmed. Hypoxanthine-guanine phosphoribosyltransferase (HGPRT) is an enzyme encoded in humans by the HPRT1 gene. 34 relations Kelley-Seegmiller, syndrome de und - hypoxanthine phosphoribosyltransferase - Le syndrome de Kelley-Seegmiller (SKS) est la forme la plus légère du déficit en hypoxanthine-guanine phosphoribosyl-transférase (HGPRT ; voir ce terme), une maladie héréditaire du métabolisme des purines, et il se manifeste par une surproduction en acide urique (SAU) avec lithiase et goutte précoce Enzyme that catalyses the first step in the pathway for salvage of the purines hypoxanthine and guanine. The phosphoribosyl moiety is transferred from an activated precursor, 5-phosphoribosyl 1-pyrophosphate. Since animal cells can synthesize purines de novo, HGPRT-mutants can be selected by their resistance to toxic purine analogues PDF | Introduction and objectives: long-term sport and physical activity results in compatibility in maintaining purine derivatives but the... | Find, read and cite all the research you need on.

HGPRT - Hypoxanthine-guanine phosphoribosyltransferase

Hypoxanthine −guanine phosphoribosyltransferase (HGPRT), a key enzyme in the purine salvage pathway, has received considerable attention as a potential target for chemotherapeutic drugs against several parasitic [1 −4] and bacterial [5, 6] human pathogens because of their reliance upon this pathway for the synthesis of the 6-oxopurine nucleoside monophosphates required for DNA/RNA. The hypoxanthine-guanine phosphoribosyltransferase (HGPRT), which catalyzes the formation of guanosine-5′-monophosphate from guanine and inosine-5′-monophosphate from hypoxanthine, represents a potential target for specific inhibitor development. Deletion of the HGPRT gene ( Δhgprt ) in the model organism Mycobacterium smegmatis confirmed that this enzyme is not essential for M. smegmatis.

Hypoxanthine-Guanine Phosphoribosyltransferase - an

Hipoxantina-guanina fosforribosiltransferasa

hgprt hypoxanthine. Web. Recherche d'information médicale. Sélectionnez une catégorie... Hypoxanthine Hypoxanthines Hypoxanthine Phosphoribosyltransférase Syndrome De Lesch-Nyhan Purines Pentosyltransférases Adénine Phosphoribosyltransférase Aminoptérine Inosine Xanthine Leishmania Donovani Syndrome De Klinefelter Imp Xanthine Oxidase Phosphoribosyl Pyrophosphate Glucose 6-Phosphate. NX_P00492 - HPRT1 - Hypoxanthine-guanine phosphoribosyltransferase - Computed references. Converts guanine to guanosine monophosphate, and hypoxanthine to inosine monophosphate. Transfers the 5-phosphoribosyl group from 5-phosphoribosylpyrophosphate onto the purine. Plays a central role in the generation of purine nucleotides through the purine salvage pathway The crystal structures of the guanosine 5'-monophosphate (GMP) and inosine 5'-monophosphate (IMP) complexes of Toxoplasma gondii hypoxanthine-guanine phosphoribosyltransferase (HGPRT) have been determined at 1.65 and 1.90 A resolution. These complexes, which crystallize in space groups P2(1) (a = 65.45 A, b = 90.84 A, c = 80. 26 A, and beta = 92.53 degrees ) and P2(1)2(1)2(1) (a = 84.54 A, b. Hypoxanthine-guanine phosphoribosyltransferase (HGPRT) is an enzyme encoded in humans by the HPRT1 gene. HGPRT is a transferase Hypoxanthine phosphoribosyltransferase at the US National Library of Medicine Medical Subject Headings (MeSH) Purine metabolism Lightfoot T, Joshi R, Nuki G, Snyder FF (Mar 1992). The point mutation of hypoxanthine-guanine phosphoribosyltransferase.

Hypoxanthine-guanine phosphoribosyltransferase enzyme

Thiopurine S-methyltransferase (TPMT) assessment prior toNucleotide salvage - WikipediaPurine enzymes in patients with rheumatoid arthritis

Hypoxanthine-guanine phosphoribosyltransférase

WikiZero - Hypoxanthine-guanine phosphoribosyltransférase

Biochemically, there is a striking reduction of hypoxanthine-guanine phosphoribosyltransferase (HGPRT) activity in affected individuals. We have examined erythrocytes from 14 patients with the Lesch-Nyhan syndrome for the presence of hypoxanthine-guanine phosphoribosyltransferase activity and enzyme protein. In contrast to the usual finding of no detectable hypoxanthine-guanine. Hypoxanthine Guanine Phosphoribosyltransferase Hprt, supplied by Abcam, used in various techniques. Bioz Stars score: 86/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and mor

Kinetic Mechanism of Human Hypoxanthine−Guanine

Hypoxanthine-guanine phosphoribosyltransferase (HGPRT) is an enzyme from the purine phosphoribosyltransferase (PRTase) family and catalyzes the conversion of hypoxanthine or guanine and 5-phospho-α- D -ribose 1-diphosphate (PRPP) to, respectively, inosine 5′-monophosphate (IMP) or guanosine 5′-monophosphate (GMP), and pyrophosphate (PPi) Le syndrome de Lesch-Nyhan (SLN) est la forme la plus sévère du déficit en hypoxanthine-guanine phosphoribosyl-transférase (HGPRT), une maladie héréditaire du métabolisme des purines, et il associe une surproduction en acide urique (SAU) à des troubles neurologiques et comportementaux Hypoxanthine‐guanine phosphoribosyltransferase (IMP : pyrophosphate phosphoribosyltransferase, EC 2.4.2.8 ; HGPRT) catalyzes the salvage synthesis of IMP and GMP from the purine bases hypoxanthine and guanine, respectively

Background: Hypoxanthine-guanine phosphoribosyltransferases (HGPRTs) are well-recognized antiparasitic drug targets. HGPRT is also a paradigmatic representative of the phosphoribosyltransferase family of enzymes, which includes other important biosynthetic and salvage enzymes and drug targets. To better understand the reaction mechanism of this enzyme, we have crystallized HGPRT from the. Lesch-Nyhan disease (LND) is caused by congenital deficiency of the purine recycling enzyme, hypoxanthine-guanine phosphoribosyltransferase (HGprt). Affected patients have a peculiar neurobehavioral syndrome linked with reductions of dopamine in the basal ganglia. The purpose of the curre ; PMID 24891139; New mutation affecting hypoxanthine phosphoribosyltransferase responsible for severe. Hypoxanthine-guanine phosphoribosyltrans­ ferase (HGPRT; E.2.4.2.8.) and adenine phosphoribosyltransferase (APRT; E.2.4.2.7.) function in the metabolic salvage of purines. Complete absence of the activity of HGPRT leads to the Lesch-Nyhan syndrome, charac­ terised by severe developmental, neurological, and behavioural abnormalities and gout. xanthine-guanine phosphoribosyltransferase deficiency was measured by the intravenous administration of tracer doses of [8-14C]adenine to nine patients with normal enzyme activity, three patients with a partial deficiency of hypoxanthine-guanine phosphoribosyl-transferase, and six patients with the Lesch-Nyhan syndrome. The mean cumulative. Hypoxanthine-guanine Phosphoribosyltransferase... Hypoxanthine-guanine phosphoribosyltransferase (HGPRT) is an enzyme encoded in humans by the HPRT1 geneHGPRT is a transferase that catalyzes conversion of hypoxanthine to inosine monophosphate and guanine to guanosine monophosphateHGPRT plays a central role in the generation of purine nucleotides through the purine salvage pathway.

enzyme hypoxanthine-guanine phosphoribosyl- phosphoribosylpyrophosphate (PRPP*), catalysed transferase (EC 2.4.2.8; HGPRT; Table I). by the purine phosphoribosyltransferase enzymes Occasional cases of severe gout and/or uric acid (Fig. 1). Some tissues (e.g. fibroblasts, Rosen Mutations in the HPRT1 gene cause Lesch-Nyhan syndrome. The HPRT1 gene provides instructions for making an enzyme called hypoxanthine phosphoribosyltransferase 1. This enzyme is responsible for recycling purines, a type of building block of DNA and its chemical cousin RNA.Recycling purines ensures that cells have a plentiful supply of building blocks for the production of DNA and RNA E. Lucile White, Larry J. Ross, Richard L. Davis, Sabrina Zywno-van Ginkel, Geetha Vasanthakumar, David W. Borhan Background. Hypoxanthine-guanine phosphoribosyltransferase (HGPRT) (EC 2.4.2.8) is a central enzyme in the purine recycling pathway. Parasitic protozoa of the order Kinetoplastida cannot synthesize purines de novo and use the salvage pathway to synthesize purine bases, making this an attractive target for antiparasitic drug design

OMIM Entry - * 308000 - HYPOXANTHINE GUANINE

Syndrome de Lesch-Nyhan — Wikipédi

N2 - Lesch-Nyhan disease (LND) is a rare, X-linked recessive neurodevelopmental disorder caused by deficiency of hypoxanthine-guanine phosphoribosyltransferase (HGprt), an enzyme in the purine salvage pathway. HGprt has two functions; it recycles hypoxanthine and guanine. Which of these two functions is more relevant for pathogenesis is unclear because some evidence points to hypoxanthine. Cette seconde voie fait intervenir l' enzyme HGPRT (hypoxanthine-guanine phosphoribosyltransférase). Les mutations du gène hgprt conduisent au syndrome de Lesch-Nyhan, dans lequel les enfants.

are deficient in hypoxanthine-guanine phosphoribosyl-transferase (EC 2.4.2.8) activity. This deficiency makes possible the use of chemicals that select either for or againstdeficientvariantsin culturedfibroblasts. Two-way selection has been achieved by the use of6-thioguanine, which selects for the deficient mutant, and azaserine, which selects to some extent for the normal allele in. HGPRT: Abbreviation for hypoxanthine guanine phosphoribosyltransferase Hypoxanthine-guanine phosphoribosyltransferase (HGPRT) is a key enzyme in the purine salvage pathway of many protozoan parasites. The predicted amino acid sequences of certain HGPRT proteins from parasites of the Trypanosomatidae family reveal a COOH-terminal tripeptide signal that is consistent with the degenerate topogenic signal targeting proteins to the glycosome, a fuel-metabolizing. Guanine Phosphoribosyltransferase Add HGPRT Add HPRT Add HPRTase Add Hypoxanthine Phosphoribosyltransferase Add Hypoxanthine-Guanine Phosphoribosyltransferase Add IMP Pyrophosphorylase Add Pharm Action Registry Number EC 2.4.2.8 Related Numbers 9016-12 Abstract. Freezing and thawing of dilute normal human fibroblast suspensions causes partial inactivation of hypoxanthine‐guanine phosphoribosyltransferase (HGPRT) and adenine phosphoribosyltransferase (APRT). Phosphoribosyl‐pyrophosphate (PRPP) stabilizes both phosphoribosyltrans‐ferases against this inactivation. Mutant HGPRT enzymes from a patient with the Lesch‐Nyhan syndrome and.

Abbreviation for hypoxanthine guanine phosphoribosyltransferase. * * * hypoxanthine guanine phosphoribosyl transferase * * * hypoxanthine guanine phosphoribosyltransferase, a common name for hypoxanthine phosphoribosyltransferase (HPRT Information on EC 2.4.2.8 - hypoxanthine phosphoribosyltransferase. ordered reaction mechanism. The substrates bind in a functionally ordered fashion, with 5-phospho-alpha-D-ribose 1-diphosphate binding first in the forward direction and IMP or GMP first in the reverse reaction, transition state structure and 5'-phosphate binding structure on HGPRT, overvie Guanine combines with PRPP to form GMP, whereas Hypoxanthine combines with PRPP to form IMP. IMP can then be interconverted with AMP. Therefore, salvage of AMP occurs through hypoxanthine. Both salvage reactions with PRPP are catalyzed by HGPRT (hypoxanthine guanine phosphoribosyltransferase). Notably, Lesch-Nyhan Syndrome is caused by a defect of HGPRT and impairs purine salvage. A less. Hypoxanthine-Guanine Phosphoribosyltransferase (n.). 1. An enzyme that catalyzes the conversion of 5-phosphoribosyl-1-pyrophosphate and hypoxanthine, guanine, or 6-mercaptopurine to the corresponding 5'-mononucleotides and pyrophosphateThe enzyme is important in purine biosynthesis as well as central nervous system functions. Complete lack of enzyme activity is associated with the LESCH-NYHAN.

Guanosine: a Neuromodulator with Therapeutic Potential inGout cdm2 2014_class version(1)11
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