2-oxo-3-sulfanylpropanoate + L-alanine => L-cysteine + pyruvate
2-oxo-3-sulfanylpropanoate + l-alanine => l-cysteine + pyruvate
2-oxo-3-sulfanylpropanoate + L-alanine => L-cysteine + pyruvate
2-oxo-3-sulfanylpropanoate + l-alanine => l-cysteine + pyruvate