label: [thioredoxin]-disulfide + L-cysteinyl-[protein] + hydrogen sulfide + H(+) => S-sulfanyl-L-cysteinyl-[protein] + [thioredoxin]-dithiol
label_lc: [thioredoxin]-disulfide + l-cysteinyl-[protein] + hydrogen sulfide + h(+) => s-sulfanyl-l-cysteinyl-[protein] + [thioredoxin]-dithiol