preferred_name: 2-oxo-3-sulfanylpropanoate + (2S)-2-aminobutanoate => 2-oxobutanoate + L-cysteine
preferred_name_lc: 2-oxo-3-sulfanylpropanoate + (2s)-2-aminobutanoate => 2-oxobutanoate + l-cysteine
label: 2-oxo-3-sulfanylpropanoate + (2S)-2-aminobutanoate => 2-oxobutanoate + L-cysteine
label_lc: 2-oxo-3-sulfanylpropanoate + (2s)-2-aminobutanoate => 2-oxobutanoate + l-cysteine