[{"from": "human", "value": "Provide a description of this molecule. [C][Branch1][O][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 a zwitterion that is derived from LL-2,6-diaminopimelic acid by deprotonation of both carboxylic acid groups and protonation of both amino groups. It has a role as an Escherichia coli metabolite. It is a tautomer of a LL-2,6-diaminopimelic acid."}]