S-(2-sulfodisulfanyl)-L-cysteinyl-[SoxY protein] + 2 Fe(II)-[cytochrome c] + 2 H(+) => S-sulfanyl-L-cysteinyl-[SoxY protein] + thiosulfate + 2 Fe(III)-[cytochrome c]
s-(2-sulfodisulfanyl)-l-cysteinyl-[soxy protein] + 2 fe(ii)-[cytochrome c] + 2 h(+) => s-sulfanyl-l-cysteinyl-[soxy protein] + thiosulfate + 2 fe(iii)-[cytochrome c]