EPISODE · Feb 1, 2026 · 18 MIN
462-胞外体复合物在囊泡系留中的动态结构建模
from 聊聊Sci
这篇研究文献探讨了外排体（exocyst）在细胞胞吐过程中的核心调控机制及其与SNARE蛋白复合物的相互作用。研究人员利用Saccharomyces cerevisiae作为实验模型，通过冷冻电子断层扫描（cryo-ET）和超分辨率显微成像（SMLM）技术，揭示了囊泡与质膜融合过程中的动态结构变化。文中特别详细介绍了Sec18/NSF蛋白的诱导耗竭方法，以及如何通过PICT技术在体内定量表征蛋白质间的相互作用。此外，该研究结合了AlphaFold 3预测模型，深入分析了SNARE基序在膜变形动力学中的结构基础。这些多维度的实验数据共同揭示了细胞分泌通路中复杂的分子机器运作机制，为生物医学和农业研究提供了重要的基础理论。References: Puig-Tintó M, Ortiz S, Meek S, et al. Continuum architecture dynamics of vesicle tethering in exocytosis[J]. Cell, 2026.前往小宇宙评论区与主播互动
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462-胞外体复合物在囊泡系留中的动态结构建模
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