[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][C][C@@H1][Branch1][C][C][/C][=C][/C][C@][Branch1][O][C@@H1][C][C][C][N][Ring1][Branch1][C][\\-Ring1][=Branch2][Branch1][C][C][O]"}, {"from": "gpt", "value": "The molecule is a toxin found in poison dart frogs (genus Dendrobates and Phyllobates). It affects the calcium channels, interfering with muscle contraction in the heart and skeletal muscle. (L1073)"}]