3,4-dihydroxybenzoate + sulfite + NAD(+) => 4-sulfobenzoate + NADH + O2
3,4-dihydroxybenzoate + sulfite + nad(+) => 4-sulfobenzoate + nadh + o2
3,4-dihydroxybenzoate + sulfite + NAD(+) => 4-sulfobenzoate + NADH + O2
3,4-dihydroxybenzoate + sulfite + nad(+) => 4-sulfobenzoate + nadh + o2