[{"from": "human", "value": "Describe this molecule. [C][C][Branch1][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C@H1][Branch1][#C][C][C][=C][N][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][=Branch2][N][C][=Branch1][C][=O][C@H1][Branch1][#C][C][C][=C][N][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][=Branch2][N][C][=Branch1][C][=O][C@H1][Branch1][#Branch1][C][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is a tetrapeptide composed of L-aspartic acid, two L-tryptophan units and L-valine joined in sequence by peptide linkages. It has a role as a metabolite. It is functionally related to a L-aspartic acid, a L-tryptophan and a L-valine."}]