SMILES: C(CCN)C[C@@H](C(=O)N[C@@H](CS)C(=O)NCC(=O)O)NC(=O)[C@H](CCCN=C(N)N)N
Description: The molecule is a tetrapeptide composed of L-arginine, L-lysine, L-cysteine, and glycine joined in sequence by peptide linkages. It has a role as a metabolite. It derives from a L-arginine, a L-lysine, a L-cysteine and a glycine.