ID 1.8.2.6 DE S-disulfanyl-L-cysteine oxidoreductase. AN sulfur dehydrogenase. CA 6 Fe(III)-[cytochrome c] + 3 H2O + S-disulfanyl-L-cysteinyl-[SoxY CA protein] = 6 Fe(II)-[cytochrome c] + 7 H(+) + S-sulfosulfanyl-L- CA cysteinyl-[SoxY protein]. CC -!- The enzyme is part of the Sox enzyme system, which participates in a CC bacterial thiosulfate oxidation pathway that produces sulfate. CC -!- The enzyme from the bacterium Paracoccus pantotrophus contains a CC molybdoprotein component and a diheme c-type cytochrome component. CC -!- The enzyme successively oxidizes the outer sulfur atom in [SoxY CC protein]-S-disulfanyl-L-cysteine, using three water molecules and CC forming [SoxY protein]-S-sulfosulfanyl-L-cysteine. CC -!- During the process, six electrons are transferred to the electron CC chain via cytochrome c. //