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27 天
科学新发现丨黑寡妇蜘蛛毒液为何如此致命
毒蜘蛛黑寡妇的毒液由七种不同毒素组成,其中α-蛛毒素对脊椎动物有致命杀伤力。德国明斯特大学的研究团队利用低温电子显微镜和分子动力学模拟技术,发现α-蛛毒素能形成细长“茎”穿透细胞膜并制造小孔,使钙离子进入细胞。这一发现揭示了毒素模仿 ...
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