[{"from": "human", "value": "Please give me some details about this molecule. [C][C@][Branch1][O][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O]"}, {"from": "gpt", "value": "The molecule is a dicarboxylic acid dianion. It is a conjugate base of a (4S)-4-hydroxy-4-methyl-L-glutamic acid. It is an enantiomer of a (2S,4R)-4-hydroxy-4-methylglutamate(1-)."}]