IUBMB Enzyme Nomenclature


Accepted name: hydrogensulfite reductase

Reaction: trithionate + acceptor + 2 H2O + OH = 3 HSO3 + reduced acceptor

Glossary: bisulfite = HSO3
trithionate = S(SO3)2

Other name(s): bisulfite reductase; dissimilatory sulfite reductase; desulfoviridin; desulforubidin; desulfofuscidin; dissimilatory-type sulfite reductase; trithionate:(acceptor) oxidoreductase

Systematic name: trithionate:acceptor oxidoreductase

Comments: Methylviologen can act as acceptor. A group of sirohemoproteins containing iron-sulfur centres (P-582).

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, UM-BBD, CAS registry number: 9059-42-1


1. Hatchikian, E.C. and Zeikus, J.G. Characterization of a new type of dissimilatory sulfite reductase present in Thermodesulfobacterium commune. J. Bacteriol. 153 (1983) 1211-1220. [PMID: 6826522]

2. Lee, J.P., Yi, C.-S., LeGall, J. and Peck, H.D.,Jr. Isolation of a new pigment, desulforubidin, from Desulfovibrio desulfuricans (Norway strain) and its role in sulfite reduction. J. Bacteriol. 115 (1973) 453-455. [PMID: 4717523]

3. Trudinger, P.A. Carbon monoxide-reacting pigment from Desulfotomaculum nigrificans and its possible relevance to sulfite reduction. J. Bacteriol. 104 (1970) 158-170. [PMID: 5473884]

[EC created 1986]

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