[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch1][Ring2][C][C][NH3+1][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O][NH3+1]"}, {"from": "gpt", "value": "The molecule is an alpha-amino-acid cation obtained by protonation of both amino groups of lysine. It is a conjugate acid of a lysinium(1+)."}]