ID 1.14.12.8 DE 4-sulfobenzoate 3,4-dioxygenase. CA 4-sulfobenzoate + NADH + O2 = 3,4-dihydroxybenzoate + NAD(+) + sulfite. CC -!- A system, containing a reductase which is an iron-sulfur flavoprotein CC (FMN), an iron-sulfur oxygenase, and no independent ferredoxin. //