Enzyme

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     2. Transferases
        2.4 Glycosyltransferases
            2.4.2 Pentosyltransferases
ID:2.4.2.8
Description:Hypoxanthine phosphoribosyltransferase.
Alternative Name: Transphosphoribosidase.
IMP pyrophosphorylase.
IMP diphosphorylase.
Hypoxanthine-guanine phosphoribosyltransferase.
HGPRTase.
Guanine phosphoribosyltransferase.
Prosite: PDOC00096;
PDB:
PDBScop
Cath: 3.40.50.20; 3.40.50.2020;

3D structure

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References

External Links

UniProtKB Enzyme Link: UniProtKB 2.4.2.8
BRENDA Enzyme Link: BRENDA 2.4.2.8
KEGG Enzyme Link: KEGG2.4.2.8
BioCyc Enzyme Link: BioCyc 2.4.2.8
ExPASy Enzyme Link: ExPASy2.4.2.8
EC2PDB Enzyme Link: EC2PDB 2.4.2.8
ExplorEnz Enzyme Link: ExplorEnz 2.4.2.8
PRIAM enzyme-specific profiles Link: PRIAM 2.4.2.8
IntEnz Enzyme Link: IntEnz 2.4.2.8
MEDLINE Enzyme Link: MEDLINE 2.4.2.8
MSA:

2.4.2.8;

Phylogenetic Tree:

2.4.2.8;

Uniprot:
M-CSA:
RHEA:25424 diphosphate + GMP = 5-phospho-alpha-D-ribose 1-diphosphate + guanine
RULE(radius=1) [*:1]-[CH;+0:2](-[*:3])-[n;H0;+0:4](:[*:5]):[*:6].[*:7]-[OH;+0:8]>>[*:1]-[CH;+0:2](-[*:3])-[O;H0;+0:8]-[*:7].[*:5]:[nH;+0:4]:[*:6]
Reaction
Core-to-Core More
Core-to-Core More

References

TitleAuthorsDatePubMed ID
Lethal accumulation of guanylic nucleotides in Saccharomyces cerevisiae HPT1-deregulated mutants.Breton A, Pinson B, Coulpier F, Giraud MF, Dautant A, Daignan-Fornier B2008 Feb18245832
Crystal structures of the Toxoplasma gondii hypoxanthine-guanine phosphoribosyltransferase-GMP and -IMP complexes: comparison of purine binding interactions with the XMP complex.Héroux A, White EL, Ross LJ, Borhani DW1999 Nov 210545170

RHEA:17973 diphosphate + IMP = 5-phospho-alpha-D-ribose 1-diphosphate + hypoxanthine
RULE(radius=1) [*:1]-[CH;+0:2](-[*:3])-[n;H0;+0:4]1:[*:5]:[*:6]:[n;H0;+0:7]:[*:8]:1.[*:9]-[OH;+0:10]>>[*:1]-[CH;+0:2](-[*:3])-[O;H0;+0:10]-[*:9].[*:5]1:[*:6]:[nH;+0:7]:[*:8]:[n;H0;+0:4]:1
Reaction
Core-to-Core More
Core-to-Core More

References

TitleAuthorsDatePubMed ID
Lethal accumulation of guanylic nucleotides in Saccharomyces cerevisiae HPT1-deregulated mutants.Breton A, Pinson B, Coulpier F, Giraud MF, Dautant A, Daignan-Fornier B2008 Feb18245832
Crystal structures of free, IMP-, and GMP-bound Escherichia coli hypoxanthine phosphoribosyltransferase.Guddat LW, Vos S, Martin JL, Keough DT, de Jersey J2002 Jul12070315