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近距离标签可以在感染后的早期和晚期识别与HSV-2pUL21相关的蛋白质

Safara M Holder¹, Maike Bossert¹, Renée L Finnen¹

¹Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada.

|March 2, 2026

概括

简单疹病毒2型 (HSV-2) 蛋白质pUL2121

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:

pUL21是HSV-2复制中的一个关键的alphaherpesvirus体膜蛋白.
在病毒生命周期中pUL21的确切功能在很大程度上是未知的.
了解pUL21的相互作用是解读HSV-2病变的关键.

研究的目的:

通过识别其相互作用伙伴,阐明pUL21在HSV-2复制中的作用.
在感染的早期和后期阶段绘制pUL21的近距离互动组图.
为了验证已识别的蛋白质与蛋白质相互作用.

主要方法:

构建了一种编码pUL21的新型HSV-2菌株,与miniTurbo生物素合酶 (pUL21mT) 融合.
在受感染细胞中使用靠近生物素识别 (BioID).
使用质谱测量用于蛋白质识别和 afinity 净化用于验证.

主要成果:

在晚期感染阶段识别了许多接近pUL21mT的病毒和细胞蛋白.
检测到与参与细胞粘附,结组织,结体和核外的蛋白质的相互作用.
进入后立即表征pUL21的早期相互作用,提供了全面的概况.

结论:

pUL21与多种细胞机械相互作用,这表明在HSV-2感染中具有多方面的作用.
生物识别是一种强大的技术,可以在整个感染周期内绘制病毒与宿主相互作用的地图.
这些发现为HSV-2 pUL21的功能和病毒病原发生提供了新的见解.

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