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