SMILES: C[C@@H](C(=O)N[C@@H](CC(=O)N)C(=O)N[C@@H](CC(=O)O)C(=O)N1CCC[C@H]1C(=O)O)N
Description: The molecule is a tetrapeptide composed of L-alanyl, L-asparagyl, L-aspartyl, and L-proline residues joined in sequence. It has a role as a metabolite. It derives from a L-alanine, a L-asparagine, a L-aspartic acid and a L-proline.