label: [thioredoxin]-disulfide + hydrogen sulfide + pyruvate + H(+) => 2-oxo-3-sulfanylpropanoate + [thioredoxin]-dithiol
label_lc: [thioredoxin]-disulfide + hydrogen sulfide + pyruvate + h(+) => 2-oxo-3-sulfanylpropanoate + [thioredoxin]-dithiol