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克里米亚 - 刚果出血性发烧病毒糖蛋白的交互原子分析

Shiyu Dai^1,2, Yuan-Qin Min^1,3, Qi Li^1,4

¹Key Laboratory of Virology and Biosafety and National Virus Resource Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071/430207, China.

Nature communications

|November 14, 2023

概括

克里米亚-刚果出血热病毒 (CCHFV) 糖蛋白与宿主蛋白相互作用,包括HAX1. HAX1将病毒葡萄糖蛋白隔离到线粒体,抑制CCHFV的传播,并揭示宿主抗病毒防御机制.

科学领域:

病毒学病毒学
分子生物学分子生物学
细胞生物学细胞生物学

背景情况:

克里米亚-刚果出血热病毒 (CCHFV) 是一种危险的生物安全级别-4病原体.
在病毒生命周期和宿主细胞相互作用中,CCHFV糖蛋白 (Gn和Gc) 的作用尚未完全理解.

研究的目的:

系统地绘制与CCHFV Gn和Gc糖蛋白相互作用的宿主蛋白.
阐明关键宿主相互作用体HAX1在CCHFV生命周期中的特定功能.

主要方法:

蛋白质组学用于识别CCHFV糖蛋白的宿主相互作用体.
共同免疫沉和西部涂抹以确认蛋白质相互作用.
细胞和动物模型评估HAX1对病毒传播的影响.

主要成果:

确定了45种高可靠性宿主蛋白与CCHFV Gn/Gc相互作用.
证明HAX1与Gn结合,将其引导到线粒体并远离高尔基细胞.
表明HAX1在细胞和动物模型中抑制病毒包装和传播.

结论:

建立了一个全面的蛋白质-蛋白质相互作用地图,用于CCHFV糖蛋白.
发现了一种新的宿主抗病毒机制,涉及HAX1和线粒体对抗CCHFV.
为开发针对CCHFV的新治疗策略提供了见解.

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