SMILES: C(CCN)C[C@@H](C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCCN)C(=O)O)NC(=O)[C@H](CCCCNC(=O)[C@H](CCS)N)N
Description: The molecule is a pentapeptide in which L-homocysteine is connected to tetralysine via a peptide bond to the epsilon-nitrogen of the N-terminal lysine residue.