[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a 13-amino acid alpha-conotoxin that is isolated from the venom of the cone snail Conus geographus. It is a competitive antagonist of the muscle-type nicotinic acetylcholine receptors, blocking synaptic transmission at the neuromuscular junction. Alpha-conotoxins are identified by a characteristic arrangement of four-cysteine residues (-CC-C-C-) and disulfide bonding of Cys1-Cys3 and Cys2-Cys4."}, {"from": "gpt", "value": "[C][C@H1][C][=Branch1][C][=O][N][C@H1][C][S][S][C][C@@H1][Branch2][#Branch2][#Branch1][C][=Branch1][C][=O][N][C@@H1][Branch2][#Branch1][N][C][S][S][C][C@H1][Branch2][=Branch1][#C][N][C][=Branch1][C][=O][C@@H1][Branch2][=Branch1][Ring2][N][C][=Branch1][C][=O][C@@H1][Branch2][Ring2][#C][N][C][=Branch1][C][=O][C@@H1][Branch2][Ring1][=C][N][C][=Branch1][C][=O][C@@H1][Branch1][=N][N][C][=Branch1][C][=O][C][N][C][Ring2][Ring2][Branch1][=O][C][C][C][N][=C][Branch1][C][N][N][C][C][=C][N][=C][N][Ring1][Branch1][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][O][C][=Branch1][C][=O][N][C][=Branch1][C][=O][N][C@H1][Branch2][Ring1][Ring2][C][=Branch1][C][=O][N][C][C][C][C@H1][Ring1][Branch1][C][=Branch1][C][=O][N][Ring2][#Branch1][C][C][C][=Branch1][C][=O][N][N][C][=Branch1][C][=O][C@H1][Branch1][Branch2][C][C][C][=Branch1][C][=O][O][N]"}]