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