ENTRY       EC 3.6.1.14
NAME        Adenosine-tetraphosphatase
CLASS       Hydrolases
            Acting on acid anhydrides
            In phosphorus-containing anhydrides
SYSNAME     Adenosine-tetraphosphate phosphohydrolase
REACTION    Adenosine 5'-tetraphosphate + H2O = ATP + Orthophosphate
SUBSTRATE   Adenosine 5'-tetraphosphate
            H2O
            Inosine 5'-tetraphosphate
            Inosine tripolyphosphate
PRODUCT     ATP
            Orthophosphate
            ITP
COMMENT     Also acts on inosine tetraphosphate and tripolyphosphate
            but shows little or no activity with other nucleotides or
            polyphosphates.
DBLINKS     University of Geneva ENZYME DATA BANK: 3.6.1.14
            WIT (What Is There) Metabolic Reconstruction: 3.6.1.14
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