ENTRY       EC 3.6.1.31
NAME        Phosphoribosyl-ATP pyrophosphatase
CLASS       Hydrolases
            Acting on acid anhydrides
            In phosphorus-containing anhydrides
SYSNAME     Phosphoribosyl-ATP pyrophosphohydrolase
REACTION    Phosphoribosyl-ATP + H2O = Phosphoribosyl-AMP + Pyrophosphate
SUBSTRATE   Phosphoribosyl-ATP
            H2O
PRODUCT     Phosphoribosyl-AMP
            Pyrophosphate
COFACTOR    H+
COMMENT     The Neurospora crassa enzyme also catalyses the reactions of
            EC 1.1.1.23 and 3.5.4.19.
PATHWAY     PATH: MAP00340  Histidine metabolism
MOTIF       PS: PS00611  I-D-x(2)-A-G-P-[ST]-E-[LIVMA](5)-x(3)-A-x(4)-[LIVM]-
                         [AV]-[SA]-D-[LIVM](2)-[SA]-x-A-E-H
GENES       ECO: b2026(hisI)
            HIN: HI0475(hisI)
            BSU: hisI(hisIE)
            SCE: YCL030C(HIS4)
DBLINKS     University of Geneva ENZYME DATA BANK: 3.6.1.31
            WIT (What Is There) Metabolic Reconstruction: 3.6.1.31
///