[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][=Branch1][C][=O][N][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1]"}, {"from": "gpt", "value": "The molecule is zwitterionic form of N(4)-acetyl-L-2,4-diaminobutyric acid having an anionic carboxy group and a protonated nitrogen. It is a tautomer of a N(4)-acetyl-L-2,4-diaminobutyric acid."}]