SEARCH Articles Figures Tables Catechol 2,3-dioxygenase, mechanism-based Catechol dioxygenases mechanism Dioxygen dioxygenase” type mechanism Dioxygenases Extradiol dioxygenases reaction mechanisms Heme dioxygenases reaction mechanism Intradiol dioxygenases reaction mechanisms Protocatechuate 3,4-dioxygenase mechanism