EC Explorer

1.8.2.6

S-disulfanyl-L-cysteine oxidoreductase

[SoxY protein]-S-disulfanyl-L-cysteine + 6 ferricytochrome c + 3 H₂O = [SoxY protein]-S-sulfosulfanyl-L-cysteine + 6 ferrocytochrome c + 6 H⁺

SoxCD, sulfur dehydrogenase

[SoxY protein]-S-disulfanyl-L-cysteine:cytochrome-c oxidoreductase

The enzyme is part of the Sox enzyme system, which participates in a bacterial thiosulfate oxidation pathway that produces sulfate. The enzyme from the bacterium Paracoccus pantotrophus contains a molybdoprotein component and a diheme c-type cytochrome component. The enzyme successively oxidizes the outer sulfur atom in [SoxY protein]-S-disulfanyl-L-cysteine, using three water molecules and forming [SoxY protein]-S-sulfosulfanyl-L-cysteine. During the process, six electrons are transferred to the electron chain via cytochrome c.

created 2018