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ENZYME entry: EC 2.8.5.2

Accepted Name
L-cysteine S-thiosulfotransferase.
Reaction catalysed
  • [SoxY protein]-L-cysteine + thiosulfate + 2 ferricytochrome c <=> [SoxY protein]-S-sulfosulfanyl-L-cysteine + 2 ferrocytochrome c + 2 H(+)
  • [SoxY protein]-S-sulfanyl-L-cysteine + thiosulfate + 2 ferricytochrome c <=> [SoxY protein]-S-(2-sulfodisulfanyl)-L-cysteine + 2 ferrocytochrome c + 2 H(+)
Comment(s)
  • The enzyme is part of the Sox enzyme system, which participates in a bacterial thiosulfate oxidation pathway that produces sulfate.
  • It catalyzes two reactions in the pathway - early in the pathway it attaches a thiosulfate molecule to the sulfur atom of an L-cysteine of a SoxY protein; later it transfers a second thiosulfate molecule to a sulfane group that is already attached to the same cysteine residue.
Cross-references
BRENDA2.8.5.2
EC2PDB2.8.5.2
ExplorEnz2.8.5.2
PRIAM enzyme-specific profiles2.8.5.2
KEGG Ligand Database for Enzyme Nomenclature2.8.5.2
IUBMB Enzyme Nomenclature2.8.5.2
IntEnz2.8.5.2
MEDLINEFind literature relating to 2.8.5.2
MetaCyc2.8.5.2
UniProtKB/Swiss-Prot
D3DJG4, SOXA1_HYDTT;  D3DJG5, SOXA2_HYDTT;  Q1W3E4, SOXA_ALLVI;  
Q8KDM7, SOXA_CHLTE;  Q8RLX0, SOXA_CHLTI;  Q08IS0, SOXA_HYDTE;  
O33434, SOXA_PARPN;  Q9K4M4, SOXA_PSESE;  Q939U1, SOXA_RHOSU;  
D7A6E5, SOXA_STAND;  

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