[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a tetrapeptide composed of L-alanine, L-leucine, L-threonine, and L-glutamine joined in sequence by peptide linkages. It has a role as a metabolite. It is functionally related to a L-alanine, a L-leucine, a L-threonine and a L-glutamine."}, {"from": "gpt", "value": "[C][C@H1][Branch2][Ring2][P][C@@H1][Branch2][Ring1][Branch1][C][=Branch1][C][=O][N][C@@H1][Branch1][Branch2][C][C][C][=Branch1][C][=O][N][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C@H1][Branch1][#Branch1][C][C][Branch1][C][C][C][N][C][=Branch1][C][=O][C@H1][Branch1][C][C][N][O]"}]