IUBMB Enzyme Nomenclature


Accepted name: xanthine phosphoribosyltransferase

Reaction: XMP + diphosphate = 5-phospho-α-D-ribose 1-diphosphate + xanthine

Glossary: XMP = 9-(5-phospho-β-D-ribosyl)xanthine = xanthosine 5'-monophosphate

Other name(s): Xan phosphoribosyltransferase; xanthosine 5'-phosphate pyrophosphorylase; xanthylate pyrophosphorylase; xanthylic pyrophosphorylase; XMP pyrophosphorylase; 5-phospho-α-D-ribose-1-diphosphate:xanthine phospho-D-ribosyltransferase; 9-(5-phospho-β-D-ribosyl)xanthine:diphosphate 5-phospho-α-D-ribosyltransferase

Systematic name: XMP:diphosphate 5-phospho-α-D-ribosyltransferase

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number: 9023-10-3


1. Krenitsky, T.A., Neil, S.M. and Miller, R.L. Guanine and xanthine phosphoribosyltransfer activities of Lactobacillus casei and Escherichia coli. Their relationship to hypoxanthine and adenine phosphoribosyltransfer activities. J. Biol. Chem. 245 (1970) 2605-2611. [PMID: 4910918]

[EC created 1972]

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