preferred_name: 2-oxo-3-sulfanylpropanoate + L-cysteinyl-[protein] => S-sulfanyl-L-cysteinyl-[protein] + pyruvate
preferred_name_lc: 2-oxo-3-sulfanylpropanoate + l-cysteinyl-[protein] => s-sulfanyl-l-cysteinyl-[protein] + pyruvate
label: 2-oxo-3-sulfanylpropanoate + L-cysteinyl-[protein] => S-sulfanyl-L-cysteinyl-[protein] + pyruvate
label_lc: 2-oxo-3-sulfanylpropanoate + l-cysteinyl-[protein] => s-sulfanyl-l-cysteinyl-[protein] + pyruvate