SMILES: C([C@@H](C(=O)O)N)SC(CC(=O)O)C(=O)O
Description: The molecule is an L-cysteine thioether that is L-cysteine in which the hydrogen of the thiol group has been replaced by a 1,2-dicarboxyethyl group. It is a chemical modification which occurs in tissue proteins and formed by a Michael addition of cysteine to fumaric acid. It has a role as a Maillard reaction product and a human metabolite. It is a L-cysteine thioether and a tricarboxylic acid.