[{"from": "human", "value": "Describe this molecule. [C][Branch1][N][C][C][N][C][C@@H1][Branch1][Ring2][C][C][N][O][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][N]"}, {"from": "gpt", "value": "The molecule is a L-alpha-amino acid anion obtained by the deprotonation of the carboxy group of hypusine. It is a conjugate base of a hypusine."}]