Takeover of host ribosomes by divergent IRES elements.

Takeover of host ribosomes by divergent IRES elements.
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不同的 IRES 元件接管宿主核糖体。

DOI:
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发表时间:
2005
影响因子:
3.9
通讯作者:
E. Jan
E. Jan
中科院分区:
生物学3区
文献类型:
--
作者:
P. Sarnow;Randal C. Cevallos;E. Jan

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核糖体是宿主细胞中的大分子机器,所有病毒都必须为之竞争。在感染的早期,病毒mRNA必须与宿主竞争核糖体和促进核糖体向病毒和细胞mRNA募集所需的真核起始因子的有限库。为了避免这种竞争,某些病毒已经进化到将核糖体募集到IRES(内部核糖体进入位点),IRES是位于病毒基因组5 '端的高度特化的RNA元件。在这里,我们讨论了不同的IRES元件可以招募核糖体和启动蛋白质合成,只有一个最小的真核生物翻译起始因子,以及这种模式的翻译起始艾滋病病毒基因扩增在先天免疫反应的早期发作。
The ribosome is the macromolecular machinery in the host cell for which all viruses have to compete. Early in infection, the viral mRNAs have to compete with the host for both the ribosomes and for the limited pool of eukaryotic initiation factors that are needed to facilitate the recruitment of ribosomes to both viral and cellular mRNAs. To circumvent this competition, certain viruses have evolved to recruit ribosomes to IRESs (internal ribosome entry sites), highly specialized RNA elements that are located at the 5'-end of the viral genomes. Here, we discuss how divergent IRES elements can recruit ribosomes and start protein synthesis with only a minimal set of eukaryotic translation initiation factors, and how this mode of translation initiation aids viral gene amplification during early onset of innate immune responses.
DOI: 10.1002/j.1460-2075.1988.tb03049.x
发表时间: 1988-07-01
期刊: EMBO JOURNAL
影响因子: 11.4
作者:
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通讯作者: TRACHSEL, H
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发表时间: 2002-12-13
影响因子: 5.6
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