SMILES: CC(C(=O)O)NCCCC[C@@H](C(=O)O)N
Description: The molecule is a L-lysine derivative formed during the reaction between methylglyoxal and protein. CEL is a homologue of N(epsilon)-(carboxymethyl)lysine (CML), an advanced glycation end-product that is formed on reaction of glyoxal or glycolaldehyde with protein and on oxidative cleavage of fructoselysine, the Amadori adduct formed on glycation of protein by glucose. It is a L-lysine derivative and a non-proteinogenic L-alpha-amino acid.