ENTRY       EC 1.1.3.8
NAME        L-Gulonolactone oxidase
CLASS       Oxidoreductases
            Acting on the CH-OH group of donors
            With oxygen as acceptor
SYSNAME     L-Gulono-1,4-lactone:oxygen 2-oxidoreductase
REACTION    L-Gulono-1,4-lactone + O2 = L-xylo-Hexulonolactone + H2O
SUBSTRATE   L-Gulono-1,4-lactone
            O2
PRODUCT     L-xylo-Hexulonolactone
            H2O
            L-Ascorbate
COFACTOR    FAD
COMMENT     A flavoprotein (FAD). The product spontaneously isomerizes to
            L-ascorbate.
PATHWAY     PATH: MAP00053  Ascorbate and aldarate metabolism
MOTIF       PS: PS00862  P-x(10)-[DE]-[LIVM]-x(3)-[LIVM]-x(9)-[LIVM]-x(3)-[GSA]-
                         [GST]-G-H
DBLINKS     University of Geneva ENZYME DATA BANK: 1.1.3.8
            WIT (What Is There) Metabolic Reconstruction: 1.1.3.8
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