[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][=Branch1][C][=O][N][C@@H1][Branch1][P][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N+1][=Branch1][C][=O][O-1][C][=Branch1][C][=O][N][C@@H1][Branch1][Branch2][C][C][C][=Branch1][C][=O][N][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a dipeptide consisting of L-phenylalanine nitro-substituted at C-4 of the phenyl ring and connected to L-glutamine via a peptide bond. It has a role as an epitope."}]