Regulation of stress granules and P-bodies during RNA virus infection.

Regulation of stress granules and P-bodies during RNA virus infection.
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DOI:
10.1002/wrna.1162
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发表时间:
2013-05
影响因子:
7.3
通讯作者:
Lloyd, Richard E.
Lloyd, Richard E.
中科院分区:
生物学2区
文献类型:
--
作者:
Lloyd, Richard E.

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RNA颗粒是细胞内的一种结构,在基因表达和体内平衡中起着重要作用。从酵母到哺乳动物,有两种主要的RNA颗粒被保存下来:应激颗粒(SGs),其中含有停滞的翻译起始复合物,以及加工体(P -体,PBs),其中富含RNA转换相关因子。由于RNA颗粒与沉默转录物相关,病毒破坏RNA颗粒功能以获得复制优势。本文以RNA病毒为重点,讨论了操纵应激颗粒和P -小体促进病毒蛋白合成的机制。关于病毒如何操纵RNA颗粒,出现了三个主要主题;(1)切割关键宿主因子,(2)控制蛋白激酶R (PKR)的激活,(3)重定向RNA颗粒成分,使其在病毒繁殖中发挥新的或平行的作用,同时破坏RNA颗粒。病毒利用这些途径中的一种或多种途径来实现强大和高效的感染。中国生物医学工程学报,2013,4:317-331。doi: 10.1002 / wrna.1162疾病中的RNA与发展>疾病中的RNA本文分类如下:
RNA granules are structures within cells that play major roles in gene expression and homeostasis. Two principle kinds of RNA granules are conserved from yeast to mammals: stress granules (SGs), which contain stalled translation initiation complexes, and processing bodies (P‐bodies, PBs), which are enriched with factors involved in RNA turnover. Since RNA granules are associated with silenced transcripts, viruses subvert RNA granule function for replicative advantages. This review, focusing on RNA viruses, discusses mechanisms that manipulate stress granules and P‐bodies to promote synthesis of viral proteins. Three main themes have emerged for how viruses manipulate RNA granules; (1) cleavage of key host factors, (2) control of protein kinase R (PKR) activation, and (3) redirecting RNA granule components for new or parallel roles in viral reproduction, at the same time disrupting RNA granules. Viruses utilize one or more of these routes to achieve robust and productive infection. WIREs RNA 2013, 4:317–331. doi: 10.1002/wrna.1162 RNA in Disease and Development > RNA in Disease This article is categorized under:
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