[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is an alpha-amino-acid cation resulting from the protonation of the amino group of selenocysteine. It is a conjugate acid of a selenocysteine."}, {"from": "gpt", "value": "[C][Branch1][#Branch2][C][Branch1][=Branch1][C][=Branch1][C][=O][O][NH3+1][Se]"}]