ENTRY       EC 2.7.6.4
NAME        Nucleotide pyrophosphokinase
CLASS       Transferases
            Transferring phosphorus-containing groups
            Diphosphotransferases
SYSNAME     ATP:nucleoside-5'-phosphate pyrophosphotransferase
REACTION    ATP + Nucleoside 5'-phosphate = AMP +
            5'-Phosphonucleoside 3'-diphosphate
SUBSTRATE   ATP
            Nucleoside 5'-phosphate
PRODUCT     AMP
            5'-Phosphonucleoside 3'-diphosphate
COMMENT     The enzyme acts on the 5'-mono-, di- and triphosphate
            derivatives of purine nucleosides.
DBLINKS     University of Geneva ENZYME DATA BANK: 2.7.6.4
            WIT (What Is There) Metabolic Reconstruction: 2.7.6.4
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