[{"from": "human", "value": "Provide a description of this molecule. [C][C][Branch1][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][N][C][=Branch1][C][=O][C@@H1][C][C][C][=Branch1][C][=O][N][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a peptide anion that is the conjugate acid of pyroglutamylvaline, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate acid of a pyroglutamylvaline."}]