SMILES: C[C@@H](C(=O)O)NC(=O)[C@H](CCCCNC(=O)[C@H](CCS)N)N
Description: The molecule is a tripeptide formed between L-Hcy, L-Lys and L-Ala in a linear sequence, with the peptide bond between Hcy and Lys being from the carboxy group of the Hcy to the epsilon-nitrogen of the lysine.