[{"from": "human", "value": "Please give me some details about this molecule. [C][Branch1][#Branch2][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1][S][=Branch1][C][=O][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a L-alpha-amino acid anion that is the conjugate base of L-cysteic acid arising from deprotonation of the carboxy and sulfo groups and protonation of the amino group; major species at pH 7.3. It has a role as a human metabolite and an Escherichia coli metabolite. It is a conjugate base of a L-cysteic acid."}]