ID 2.8.5.2 DE L-cysteine S-thiosulfotransferase. CA (1) 2 Fe(III)-[cytochrome c] + L-cysteinyl-[SoxY protein] + thiosulfate = CA 2 Fe(II)-[cytochrome c] + 2 H(+) + S-sulfosulfanyl-L-cysteinyl-[SoxY CA protein]. CA (2) 2 Fe(III)-[cytochrome c] + S-sulfanyl-L-cysteinyl-[SoxY protein] + CA thiosulfate = 2 Fe(II)-[cytochrome c] + 2 H(+) + S-(2-sulfodisulfanyl)-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 -!- It catalyzes two reactions in the pathway - early in the pathway it CC attaches a thiosulfate molecule to the sulfur atom of an L-cysteine CC of a SoxY protein; later it transfers a second thiosulfate molecule CC to a sulfane group that is already attached to the same cysteine CC residue. DR D3DJG4, SOXA1_HYDTT; D3DJG5, SOXA2_HYDTT; Q1W3E4, SOXA_ALLVI ; DR D7A6E5, SOXA_ANCN5 ; Q8KDM7, SOXA_CHLTE ; Q8RLX0, SOXA_CHLTI ; DR Q08IS0, SOXA_HYDTE ; O33434, SOXA_PARPN ; Q9K4M4, SOXA_PSESE ; DR Q939U1, SOXA_RHOSU ; //