ENTRY       EC 1.13.11.3
NAME        Protocatechuate 3,4-dioxygenase
            Protocatechuate oxygenase
CLASS       Oxidoreductases
            Acting on single donors with incorporation of molecular oxygen
            (oxygenases)
            With incorporation of two atoms of oxygen
SYSNAME     Protocatechuate:oxygen 3,4-oxidoreductase (decyclizing)
REACTION    3,4-Dihydroxybenzoate + O2 = 3-Carboxy-cis,cis-muconate
SUBSTRATE   3,4-Dihydroxybenzoate
            O2
PRODUCT     3-Carboxy-cis,cis-muconate
COFACTOR    Iron
COMMENT     Requires Fe3+. Formerly EC 1.13.1.3 and 1.99.2.3.
PATHWAY     PATH: MAP00350  Tyrosine metabolism
            PATH: MAP00360  Phenylalanine metabolism
MOTIF       PS: PS00083  [LIVM]-x-G-x-[LIVM]-x(4)-[GS]-x(2)-[LIVM]-x(4)-[LIVM]-
                         [DE]-[LIVMFY]-x(6)-G-x-[FY]
STRUCTURES  PDB: 2PCD  
DBLINKS     University of Geneva ENZYME DATA BANK: 1.13.11.3
            WIT (What Is There) Metabolic Reconstruction: 1.13.11.3
            SCOP (Structural Classificaion of Proteins): 1.13.11.3
///