[{"from": "human", "value": "What can you tell me about this molecule? [C][C][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C][C][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is a lysine derivative found in proteins where the epsilon nitrogen of the amino acid residue is modified by a carboxyethyl group. This advanced glycation end product (AGE) is elevated in certain diseases and may be associated with aging."}]