| sulfite dehydrogenase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
 Sulfite dehydrogenase heterotetramer, Paracoccus pantotrophus | |||||||||
| Identifiers | |||||||||
| EC no. | 1.8.2.1 | ||||||||
| CAS no. | 37256-47-6 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
In enzymology, a sulfite dehydrogenase (EC 1.8.2.1) is an enzyme that catalyzes the chemical reaction
- sulfite + 2 ferricytochrome c + H2O sulfate + 2 ferrocytochrome c + 2 H+
The 3 substrates of this enzyme are sulfite, ferricytochrome c, and H2O, whereas its 3 products are sulfate, ferrocytochrome c, and H+.
This enzyme belongs to the family of oxidoreductases, specifically those acting on a sulfur group of donor with a cytochrome as acceptor. The systematic name of this enzyme class is sulfite:ferricytochrome-c oxidoreductase. Other names in common use include sulfite cytochrome c reductase, sulfite-cytochrome c oxidoreductase, and sulfite oxidase. This enzyme participates in sulfur metabolism.
References
- Charles AM, Suzuki I (1966). "Purification and properties of sulfite:cytochrome c oxidoreductase from Thiobacillus novellus". Biochim. Biophys. Acta. 128: 522–534. doi:10.1016/0926-6593(66)90013-0.
- Lu WP, Kelly DP (1984). "Properties and role of sulphite:cytochrome c oxidoreductase purified from Thiobacillus versutus (A2)". J. Gen. Microbiol. 130: 1683–1692. doi:10.1099/00221287-130-7-1683.
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