EC 1 - Oxidoreductases
EC 1.8 - Acting on a sulfur group of donors
EC 1.8.7 - With an iron-sulfur protein as acceptor
EC 1.8.7.1 - Assimilatory sulfite reductase (ferredoxin)
IntEnz view
ENZYME view
IntEnz Enzyme Nomenclature
EC 1.8.7.1
Names
Accepted name:
assimilatory sulfite reductase (ferredoxin)
Other
names:
ferredoxin-sulfite reductase
SIR (gene name)
sulfite reductase (ferredoxin)
SIR (gene name)
sulfite reductase (ferredoxin)
Systematic name:
hydrogen-sulfide:ferredoxin oxidoreductase
Reaction
- hydrogen sulfide + 6 oxidized ferredoxin [iron-sulfur] cluster + 3 H2O = sulfite + 6 reduced ferredoxin [iron-sulfur] cluster + 6 H+
Cofactor
Comments:
An iron protein. The enzyme participates in sulfate assimilation. While it is usually found in cyanobacteria, plants and algae, it has also been reported in bacteria [4]. cf. EC 1.8.1.2, assimilatory sulfite reductase (NADPH).
Links to other databases
Protein domains and families:
PROSITE:PDOC00314
Gene Ontology:
GO:0050311
CAS Registry Number:
37256-50-1
References
-
The mechanism of photosynthetic sulfate reduction by isolated chloroplasts.Biochim. Biophys. Acta 180 : 529-535 (1969). [PMID: 4390248]
-
The ferredoxin:sulphite reductase gene from Synechococcus PCC7942.Biochim. Biophys. Acta 1144 : 102-106 (1993). [PMID: 8347657]
-
Isolation and characterization of a gene for assimilatory sulfite reductase from Arabidopsis thaliana.Gene 212 : 147-153 (1998). [PMID: 9661674]
-
Characterization of the cys gene locus from Allochromatium vinosum indicates an unusual sulfate assimilation pathway.Mol. Biol. Rep. 27 : 27-33 (2000). [PMID: 10939523]
[EC 1.8.7.1 created 1972, modified 2015]