ENTRY       EC 3.5.4.24
NAME        Sepiapterin deaminase
CLASS       Hydrolases
            Acting on carbon-nitrogen bonds, other than peptide bonds
            In cyclic amidines
SYSNAME     Sepiapterin aminohydrolase
REACTION    Sepiapterin + H2O = Xanthopterin-B2 + NH3
SUBSTRATE   Sepiapterin
            H2O
PRODUCT     Xanthopterin-B2
            NH3
COMMENT     Also acts on isosepiapterin, more slowly.
DBLINKS     University of Geneva ENZYME DATA BANK: 3.5.4.24
            WIT (What Is There) Metabolic Reconstruction: 3.5.4.24
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