Home  |  Contact
Due to scheduled maintenance work, this service will not be available from Tuesday August 23rd 06:00 pm until Wednesday August 24th 08:00 am CEST. Apologies for the inconvenience.

ENZYME entry: EC

Accepted Name
thiosulfate dehydrogenase.
Alternative Name(s)
tetrathionate synthase.
Reaction catalysed
2 Fe(III)-[cytochrome c] + 2 thiosulfate <=> 2 Fe(II)-[cytochrome c] + 2 H(+) + tetrathionate
  • The enzyme catalyzes the reversible formation of a sulfur-sulfur bond between the sulfane atoms of two thiosulfate molecules, yielding tetrathionate and releasing two electrons.
  • In many bacterial species the enzyme is a diheme c-type cytochrome.
  • In a number of organisms, including Thiomonas intermedia and Sideroxydans lithotrophicus, a second diheme cytochrome (TsdB) acts as the electron acceptor.
  • However, some organisms, such as Allochromatium vinosum, lack TsdB.
  • The electron acceptor in these organisms may be the high-potential iron-sulfur protein (HiPIP).
PRIAM enzyme-specific profiles1.8.2.2
KEGG Ligand Database for Enzyme Nomenclature1.8.2.2
IUBMB Enzyme Nomenclature1.8.2.2
MEDLINEFind literature relating to
Rhea expert-curated reactions1.8.2.2

View entry in original ENZYME format
View entry in raw text format (no links)
All UniProtKB/Swiss-Prot entries referenced in this entry, with possibility to download in different formats, align etc.
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 1.8.2.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 1.8.-.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 1.-.-.-