EPISODE · Sep 5, 2026 · 24 MIN
1545-病毒泛素连接酶的系统发现与机制剖析
from 聊聊Sci
这篇研究论文介绍了一种高通量遗传筛选平台，旨在系统性地识别病毒如何利用泛素-蛋白酶体系统来逃避人体免疫攻击。研究人员通过分析约一万个病毒基因，发现了多种能诱导宿主蛋白降解的病毒“降解子”，并将其分为模仿、劫持或改写宿主机械的三类不同机制。这些病毒效应因子专门针对关键免疫蛋白（如JAK1和IRF3）进行破坏，从而阻断抗病毒信号的传递。通过冷冻电镜等技术，研究揭示了如轮状病毒NSP1等蛋白如何通过非典型方式重组宿主酶复合物。该成果不仅阐明了病毒进化的免疫逃逸策略，也为开发新型抗病毒疗法提供了分子基础。References:Glassman C R, Baek K, Hou G, et al. Virome-wide ubiquitin ligase discovery reveals diverse mechanisms of immune evasion[J]. Science, 2026.前往小宇宙评论区与主播互动
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1545-病毒泛素连接酶的系统发现与机制剖析
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