Thiosulfate dehydrogenase (quinone)

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

2 thiosulfate + 2 6-decylubiquinone ${\displaystyle \rightleftharpoons }$ tetrathionate + 2 6-decylubiquinol

thiosulfate dehydrogenase (quinone)
Identifiers
EC no.	1.8.5.2
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
Search PMC articles PubMed articles NCBI proteins

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.