SMILES: C[C@H]([C@@H](C(=O)N[C@@H](CO)C(=O)O)NC(=O)[C@H](CC1=CC=CC=C1)NC(=O)[C@H](C)N)O
Description: The molecule is a tetrapeptide composed of L-alanine, L-phenylalanine, L-threonine, and L-serine joined in sequence by peptide linkages. It has a role as a metabolite. It derives from a L-alanine, a L-phenylalanine, a L-threonine and a L-serine.