[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C@H1][Branch1][#Branch1][NH2+1][C][C][Ring1][Branch1][=O][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is an amino acid zwitterion resulting from a transfer of a proton from the carboxy to the amino group of 4-oxo-L-proline; major species at pH 7.3. It is a tautomer of a 4-oxo-L-proline."}]