oxidoreductase activity, acting on single donors with incorporation of molecular oxygen, incorporation of two atoms of oxygen 2,3-dihydroxybenzoate 3,4-dioxygenase activity https://github.com/geneontology/go-ontology/issues/30193 KEGG_REACTION:R01507 GO:0045133 2,3-dihydroxybenzoic oxygenase activity o-pyrocatechuate oxygenase activity RHEA:18477 molecular_function Catalysis of the reaction: 2,3-dihydroxybenzoate + O2 = 2-hydroxy-3-(3-oxoprop-1-enyl)but-2-enedioate + H+. 2,3-dihydroxybenzoate oxygenase activity 2,3-dihydroxybenzoate 1,2-dioxygenase activity MetaCyc:1.13.11.14-RXN EC:1.13.11.14 2,3-dihydroxybenzoate:oxygen 3,4-oxidoreductase (decyclizing)