ID 1.13.11.15 DE 3,4-dihydroxyphenylacetate 2,3-dioxygenase. AN Homoprotocatechuate 2,3-dioxygenase. AN HPC dioxygenase. CA 3,4-dihydroxyphenylacetate + O(2) = 2-hydroxy-5-carboxymethylmuconate CA semialdehyde. CF Iron. DR Q05353, HPCB_ECOLX ; //