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ENZYME entry: EC

Accepted Name
S-sulfosulfanyl-L-cysteine sulfohydrolase.
Reaction catalysed
  • H2O + S-sulfosulfanyl-L-cysteinyl-[SoxY protein] <=> H(+) + S-sulfanyl-L-cysteinyl-[SoxY protein] + sulfate
  • H2O + S-(2-sulfodisulfanyl)-L-cysteinyl-[SoxY protein] <=> H(+) + S-disulfanyl-L-cysteinyl-[SoxY protein] + sulfate
  • 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.
  • In both cases the enzyme hydrolyzes a sulfonate moiety that is bound (either directly or via a sulfane) to a cysteine residue of a SoxY protein, releasing sulfate.
  • The enzyme from Paracoccus pantotrophus contains a pyroglutamate (cycloglutamate) at its N-terminus.
PRIAM enzyme-specific profiles3.1.6.20
KEGG Ligand Database for Enzyme Nomenclature3.1.6.20
IUBMB Enzyme Nomenclature3.1.6.20
MEDLINEFind literature relating to
Rhea expert-curated reactions3.1.6.20

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