[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][C@@H1][Branch1][N][C][=Branch1][C][=O][N][C][C][=Branch1][C][=O][O-1][NH3+1]"}, {"from": "gpt", "value": "The molecule is a zwitterion resulting from the transfer of a proton from the carboxy group to the amino group of N-[(2S)-2-aminobutanoyl]glycine. The major species at pH 7.3. It is a tautomer of a N-[(2S)-2-aminobutanoyl]glycine."}]