[{"from": "human", "value": "Please give me some details about this molecule. [C][C][C@H1][Branch2][Ring1][#Branch1][N][Branch1][Ring2][C][Ring1][Branch1][C][=Branch1][C][=O][C@H1][Branch1][=Branch2][C][C][=C][N][=C][N][Ring1][Branch1][N][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a dipeptide formed from L-histidine and L-proline residues. It has a role as a metabolite. It is a tautomer of a His-Pro zwitterion."}]