Thiosulfate dehydrogenase (quinone)

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In enzymology, a thiosulfate dehydrogenase (quinone) (EC 1.8.5.2) is an enzyme that catalyzes the chemical reaction

2 thiosulfate + 2 6-decylubiquinone tetrathionate + 2 6-decylubiquinol

Thus, the two substrates of this enzyme are thiosulfate and 6-decylubiquinone, whereas its two products are tetrathionate and 6-decylubiquinol.

This enzyme belongs to the family of oxidoreductases, specifically those acting on a sulfur group of donors with a quinone or similar compound as acceptor. The systematic name of this enzyme class is thiosulfate:6-decylubiquinone oxidoreductase. Other names in common use include thiosulfate:quinone oxidoreductase, thiosulphate:quinone oxidoreductase, thiosulfate oxidoreductase, tetrathionate-forming, and TQO.

[edit] References

• IUBMB entry for 1.8.5.2
• BRENDA references for 1.8.5.2 (Recommended.)
• PubMed references for 1.8.5.2
• PubMed Central references for 1.8.5.2
• Google Scholar references for 1.8.5.2
• Muller FH, Bandeiras TM, Urich T, Teixeira M, Gomes CM, Kletzin A (2004). "Coupling of the pathway of sulphur oxidation to dioxygen reduction: characterization of a novel membrane-bound thiosulphate:quinone oxidoreductase". Mol. Microbiol. 53: 1147–60. doi:10.1111/j.1365-2958.2004.04193.x. PMID 15306018. 

[edit] External links

• IUBMB entry for 1.8.5.2

• KEGG entry for 1.8.5.2

• BRENDA entry for 1.8.5.2

• NiceZyme view of 1.8.5.2

• EC2PDB: PDB structures for 1.8.5.2

• PRIAM entry for 1.8.5.2

• PUMA2 entry for 1.8.5.2

• IntEnz: Integrated Enzyme entry for 1.8.5.2

• MetaCyc entry for 1.8.5.2

• Atomic-resolution structures of enzymes belonging to this class

[edit] Gene Ontology (GO) codes

• EGO entry for GO code 0043831: thiosulfate dehydrogenase (quinone)

• AMIGO entry for GO code 0043831: thiosulfate dehydrogenase (quinone)