KEGG   ENZYME: 1.8.99.1Help
Entry
EC 1.8.99.1                 Enzyme                                 
Name
sulfite reductase;
assimilatory sulfite reductase;
assimilatory-type sulfite reductase;
hydrogen-sulfide:(acceptor) oxidoreductase
Class
Oxidoreductases;
Acting on a sulfur group of donors;
With other acceptors
BRITE hierarchy
Sysname
hydrogen-sulfide:acceptor oxidoreductase
Reaction(IUBMB)
hydrogen sulfide + acceptor + 3 H2O = sulfite + reduced acceptor [RN:R00861]
Reaction(KEGG)
R00861;
(other) R03597
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Substrate
hydrogen sulfide [CPD:C00283];
acceptor [CPD:C00028];
H2O [CPD:C00001]
Product
sulfite [CPD:C00094];
reduced acceptor [CPD:C00030]
Comment
An iron-protein. A stoichiometry of six molecules of reduced methyl viologen per molecule of sulfide formed was found.
Pathway
Sulfur metabolism
Metabolic pathways
Microbial metabolism in diverse environments
Reference
1  [PMID:6038492]
  Authors
Asada K.
  Title
Purification and properties of a sulfite reductase from leaf tissue.
  Journal
J. Biol. Chem. 242 (1967) 3646-54.
  Organism
Neurospora crassa [GN:ncr], Aspergillus nidulans [GN:ani], Escherichia coli [GN:eco], Desulfovibrio desulfuricans [GN:dde], Salmonella typhimurium, Allium odorum, Clostridium nigrificans, Desulfovibrio gigas
Reference
2  [PMID:5824566]
  Authors
Asada K, Tamura G, Bandurski RS.
  Title
Methyl viologen-linked sulfite reductase from spinach leaves.
  Journal
J. Biol. Chem. 244 (1969) 4904-15.
  Organism
Aspergillus nidulans [GN:ani], Escherichia coli [GN:eco], Allium odorum, Spinacia oleracea
Reference
3  [PMID:5589532]
  Authors
Yoshimoto A, Nakamura T, Sato R.
  Title
Isolation from Aspergillus nidulans, of a protein catalyzing the reduction of sulfite by reduced viologen dyes.
  Journal
J. Biochem. (Tokyo). 62 (1967) 756-66.
  Organism
Aspergillus nidulans [GN:ani]
Other DBs
ExplorEnz - The Enzyme Database: 
IUBMB Enzyme Nomenclature: 
ExPASy - ENZYME nomenclature database: 
BRENDA, the Enzyme Database: 
CAS: 
37256-51-2
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