[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is conjugate acid of 2,4-diaminopentanoic acid having both nitrogens protonated and an anionic carboxy group. It is a conjugate acid of a 2,4-diaminopentanoic acid."}, {"from": "gpt", "value": "[C][C][Branch1][O][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1][NH3+1]"}]