[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][Branch1][=C][N][Ring1][=Branch1][C][Branch2][Ring1][#Branch2][C][Branch1][=C][C][=C][N][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][=Branch2][C][=Branch1][C][=N][C][=Branch1][C][=O][O][C][=Branch1][C][=N][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a zwitterion that is derived from 2,5-diimino-3,4-bis(indol-3-yl)hexanedioic acid by deprotonation of both carboxylic acid groups and protonation of both amino groups; major species at pH 7.3. It has a role as a bacterial metabolite. It is a tautomer of a 2,5-diimino-3,4-bis(indol-3-yl)hexanedioic acid."}]