[{"from": "human", "value": "Please give me some details about this molecule. [C][C][C@H1][Branch1][Branch1][NH2+1][C][Ring1][Branch1][C][=Branch1][C][=O][N][C][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is the zwitterion of L-prolinylglycine resulting from the transfer of a proton from the hydroxy group of glycine to the amino group of proline. Major microspecies at pH 7.3. It is a tautomer of a L-prolylglycine."}]