ID 1.8.2.1 DE sulfite dehydrogenase (cytochrome). AN sulfite dehydrogenase. CA 2 Fe(III)-[cytochrome c] + H2O + sulfite = 2 Fe(II)-[cytochrome c] + CA 2 H(+) + sulfate. CC -!- Associated with cytochrome c-551. cf. EC 1.8.5.6. //