NUP98通过与vRNA的相互作用来调节orthoflavivirus的复制,并且可以用于抗病毒目的
Marie B A Peters1,2,3, Richard Lindqvist1,2,3, Priyanka Madhu4
1Department of Clinical Microbiology, Umeå University, 90185 Umeå, Sweden.
Nucleic acids research
|January 27, 2026
概括
核孔复合蛋白NUP98通过结合病毒RNA并促进复制,在正方形病毒感染中起到前病毒性因素的作用. 破坏这种相互作用的体显示出抗病毒活性,突出显示NUP98是潜在的治疗标.
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:
- 核孔复合体 (NPC) 调节核细胞质运输.
- NUP98是一种NPC成分,已知在RNA出口中的作用,并建议在病毒感染中的作用.
- 对于NUP98在 ортофлавивирусной感染中的功能仍然在很大程度上未被探索.
研究的目的:
- 为了调查NUP98在 ортофлавивирусной感染中的作用.
- 为了确定NUP98是否与病毒成分相互作用并影响病毒复制.
主要方法:
- 在 ортофлавививирус感染期间进行细胞局部化研究.
- 表面等离子体共振 (SPR) 来评估直接结合.
- 交叉链接免疫沉 (CLIP) 和CLIP测序 (CLIP-seq) 以确定NUP98-RNA相互作用.
主要成果:
- NUP98被招募到细胞质中,并在感染传播脑炎病毒,日本脑炎病毒和黄热病病毒时在复制囊泡附近定位.
- NUP98的C终端域直接与E编码区域内的病毒RNA (vRNA) 上的保留位点结合.
- 这种NUP98和vRNA之间的相互作用促进了orthoflavivirus的复制.
- 鉴定出一种可以抑制NUP98-vRNA结合并表现出抗病毒活性的.
结论:
- NUP98 功能作为一个前病毒因子在orthoflavivirus感染.
- NUP98与病毒RNA的相互作用对于病毒复制至关重要.
- NUP98代表了开发针对orthoflaviviruses的新型抗病毒疗法的有希望的目标.
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