ENTRY       EC 3.6.1.40
NAME        Guanosine-5'-triphosphate,3'-diphosphate pyrophosphatase
            Guanosine pentaphosphate phosphohydrolase
            pppGpp 5'-phosphohydrolase
CLASS       Hydrolases
            Acting on acid anhydrides
            In phosphorus-containing anhydrides
SYSNAME     Guanosine-5'-triphosphate,3'-diphosphate 5'-phosphohydrolase
REACTION    Guanosine 3'-diphosphate 5'-triphosphate + H2O =
            Guanosine 3'-diphosphate 5'-diphosphate + Orthophosphate
SUBSTRATE   Guanosine 3'-diphosphate 5'-triphosphate
            H2O
PRODUCT     Guanosine 3'-diphosphate 5'-diphosphate
            Orthophosphate
COMMENT     Also hydrolyses other guanosine 5'-triphosphate deivatives with
            as least one unsubstituted phosphate group on the 3'-position, but
            not GTP, ATP or adenosine 5'-triphosphate,3'-diphosphate.
PATHWAY     PATH: MAP00230  Purine metabolism
GENES       ECO: b3779(gppA)
            HPY: HP0278(gppA)
DBLINKS     University of Geneva ENZYME DATA BANK: 3.6.1.40
            WIT (What Is There) Metabolic Reconstruction: 3.6.1.40
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