[{"from": "human", "value": "Please give me some details about this molecule. [C][Branch1][S][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][N][C][=Branch1][C][=O][C][NH3+1][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a peptide anion obtained by deprotonation of the terminal and side-chain carboxy groups and protonation of the terminal amino group of Gly-Asp; major species at pH 7.3. It is a conjugate base of a Gly-Asp."}]