ENTRY       EC 2.4.2.22
NAME        Xanthine phosphoribosyltransferase
CLASS       Transferases
            Glycosyltransferases
            Pentosyltransferases
SYSNAME     5-Phospho-alpha-D-ribose-1-diphosphate:xanthine phosphoribosyl-
            transferase
REACTION    5-Phospho-alpha-D-ribose 1-diphosphate + Xanthine =
            (9-D-Ribosylxanthine)-5'-phosphate + Pyrophosphate
SUBSTRATE   5-Phospho-alpha-D-ribose 1-diphosphate
            Xanthine
PRODUCT     (9-D-Ribosylxanthine)-5'-phosphate
            Pyrophosphate
MOTIF       PS: PS00103  [LIVMFYWCTA]-[LIVM](2)-[LIVMF]-[DE]-D-[LIVMS]-[LIVM]-
                         [STAVD]-[STAR]-[GAC]-x-[STAR]
GENES       ECO: b0238(GPT)
            HIN: HI0674(gptA) HI0692(gptA)
            HPY: HP0735
            SYN: slr1052
STRUCTURES  PDB: 1NUL  
DBLINKS     University of Geneva ENZYME DATA BANK: 2.4.2.22
            WIT (What Is There) Metabolic Reconstruction: 2.4.2.22
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