[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][Branch1][C][C][C@@H1][Branch1][O][/C][=C][Branch1][C][\\C][/C][=Branch1][C][=O][O][N][Branch1][C][C][C][=Branch1][C][=O][C@H1][Branch1][=Branch2][C][Branch1][C][C][Branch1][C][C][C][N][C][=Branch1][C][=O][C@H1][C][C][C][C][N][Ring1][=Branch1][C][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule is an analog of the sponge-derived anti-microtubule tripeptide hemiasterlin with antimitotic and potential antineoplastic activities. Hemiasterlin analog E7974 binds to the Vinca domain on tubulin, resulting in inhibition of tubulin polymerization and microtubule assembly; depolymerization of existing microtubules; inhibition of mitosis; and inhibition of cellular proliferation. This agent may have more affinity for the beta-3 tubulin isotype."}]