[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is an gamma-amino acid anion resulting from the deprotonation of the carboxy group of gamma-aminobutyric acid. It has a role as a human metabolite. It is functionally related to a butyrate. It is a conjugate base of a gamma-aminobutyric acid."}, {"from": "gpt", "value": "[C][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][C][N]"}]