来自baculovirus的蛋白质类蛋白质的酸化会影响其DNA结合和病毒传播
Qian Cheng1, Siqi Zhu2, Yanrong Lv1
1State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou 510275, China.
Nucleic acids research
|June 12, 2025
概括
改变Autographa californica多核多重体病毒中的DNA结合蛋白P6.9酸化会影响后代病毒的产生. P6.9酸化状态的变化会影响病毒DNA结合,核定位和基因表达,这对病毒复制至关重要.
科学领域:
- 分子病毒学分子病毒学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 蛋白质酸化是指蛋白质的酸化.
背景情况:
- 病毒DNA结合蛋白,像蛋白质类蛋白一样,对于基因组包装和病毒基因表达是必不可少的.
- 百科病毒Autographa californica多核聚合病毒 (AcMNPV) 依赖于DNA结合蛋白P6.9来产生后代病毒.
- 以前的研究表明P6.9酸化状态的重要性,但根本机制尚未完全理解.
研究的目的:
- 研究改变P6.9酸化对病毒复制的功能后果.
- 阐明P6.9酸化在病毒DNA结合,核定位和基因表达中的作用.
- 建立一个模型,说明P6.9酸化动态如何调节病毒包装和基因表达.
主要方法:
- 在P6.9.9的低酸化和高酸化条件下分析病毒后代的产生.
- 评估P6.9的DNA结合亲和力和核定位,以应对酸化变化.
- 通过P6.9酸化状态调节的病毒和宿主基因表达水平的量化.
主要成果:
- 永久性低化和高化P6.9的N端显著抑制了后代病毒的扩散.
- 酸化状态直接影响了P6.9的DNA结合亲和力,决定了其核定位模式.
- P6.9酸化状态广泛上调或下调病毒和宿主基因表达.
结论:
- P6.9酸化是控制AcMNPV复制的关键调节机制.
- P6.9的酸化动态控制病毒基因组包装和基因表达时间.
- 这项研究提供了通过蛋白质酸化介导的病毒宿主相互作用的见解.
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