ENTRY       EC 3.6.1.8
NAME        ATP pyrophosphatase
            ATPase
CLASS       Hydrolases
            Acting on acid anhydrides
            In phosphorus-containing anhydrides
SYSNAME     ATP pyrophosphohydrolase
REACTION    ATP + H2O = AMP + Pyrophosphate
SUBSTRATE   ATP
            H2O
            ITP
            GTP
            CTP
            UTP
PRODUCT     AMP
            Pyrophosphate
            IMP
            GMP
            CMP
            UMP
COMMENT     Also acts on ITP, GTP, CTP and UTP.
DBLINKS     University of Geneva ENZYME DATA BANK: 3.6.1.8
            WIT (What Is There) Metabolic Reconstruction: 3.6.1.8
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