[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][C@H1][Branch1][C][C][C@@H1][C@H1][Branch2][#Branch2][Branch2][C][C][=Branch1][C][=O][O][C@H1][Branch2][=Branch2][=Branch2][C][=Branch1][C][=O][C@@H1][Branch2][Branch2][S][C][=Branch1][C][=O][N][C@H1][Branch2][#Branch1][P][C][=Branch1][C][=O][N][C][C][C][C@H1][Ring1][Branch1][C][=Branch1][C][=O][N][Branch2][=Branch1][=N][C@H1][Branch2][Branch1][N][C][=Branch1][C][=O][O][C@@H1][Branch2][Branch1][C][C@@H1][Branch1][=Branch2][C][=Branch1][C][=O][N][Ring2][Ring1][P][N][C][=Branch1][C][=O][C@@H1][Branch1][#Branch1][C][C][Branch1][C][C][C][N][Branch1][C][C][C][=Branch1][C][=O][C@@H1][C][C][C][N][Ring1][Branch1][C][=Branch1][C][=O][C][=Branch1][C][=O][C][C][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][C][C][C][Branch1][C][C][C][C][C][Branch1][C][C][C][O]"}, {"from": "gpt", "value": "The molecule is a cyclic depsipeptide isolated from the marine tunicate Aplidium albicans. Plitidepsin displays a broad spectrum of antitumor activities, inducing apoptosis by triggering mitochondrial cytochrome c release, initiating the Fas/DC95, JNK pathway and activating caspase 3 activation. This agent also inhibits elongation factor 1-a, thereby interfering with protein synthesis, and induces G1 arrest and G2 blockade, thereby inhibiting tumor cell growth."}]