[{"from": "human", "value": "Provide a description of this molecule. [C][Branch2][Ring1][Ring1][C][C][N][C][=Branch1][C][=O][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1]"}, {"from": "gpt", "value": "The molecule is an L-alpha-amino acid zwitterion that is the dizwitterionic form of epsilon-(gamma-glutamyl)lysine obtained by migration of protons from both carboxy groups to the amino groups; major species at pH 7.3. It is a tautomer of an epsilon-(gamma-glutamyl)lysine."}]