SMILES: C[C@@H](C(=O)N[C@@H](CC1=CNC2=CC=CC=C21)C(=O)N[C@@H](CC(=O)N)C(=O)N[C@@H](CC(=O)O)C(=O)O)N
Description: The molecule is a tetrapeptide composed of L-alanine, L-tryptophan, L-asparagine, and L-aspartic acid joined in sequence by peptide linkages. It has a role as a metabolite. It derives from a L-alanine, a L-tryptophan, a L-asparagine and a L-aspartic acid.