The polymerase of negative-stranded RNA viruses.

The polymerase of negative-stranded RNA viruses.
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负链RNA病毒的聚合酶。

DOI:
10.1016/j.coviro.2013.03.008
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发表时间:
2013-04
影响因子:
5.9
通讯作者:
Whelan, Sean P. J.
Whelan, Sean P. J.
中科院分区:
医学2区
文献类型:
--
作者:
Morin, Benjamin;Kranzusch, Philip J.;Rahmeh, Amal A.;Whelan, Sean P. J.

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负义(NS)RNA病毒将具有转录能力的兆道尔顿RNA-蛋白质复合物递送到细胞中。在这种复合物中,RNA被保护在核衣壳蛋白(NP)鞘中,病毒聚合酶在RNA合成过程中进行谈判。NP-RNA模板是无节段的(NNS)或节段的(SNS),需要不同的策略通过其聚合酶进行转录。对NNS和SNS RNA病毒的NP-RNA的原子水平的理解表明,在RNA合成期间,RNA必须从NP瞬时解离。在这里,我们总结和比较NNS和SNS RNA病毒的聚合酶,和目前的聚合酶的结构数据。这些比较告诉我们相关RNA合成机器的进化,它们使用两种不同的mRNA帽形成机制。
Negative-sense (NS) RNA viruses deliver into cells a mega-dalton RNA-protein complex competent for transcription. Within this complex, the RNA is protected in a nucleocapsid protein (NP) sheath which the viral polymerase negotiates during RNA synthesis. The NP-RNA templates come as nonsegemented (NNS) or segmented (SNS), necessitating distinct strategies for transcription by their polymerases. Atomic-level understanding of the NP-RNA of both NNS and SNS RNA viruses show that the RNA must be transiently dissociated from NP during RNA synthesis. Here we summarize and compare the polymerases of NNS and SNS RNA viruses, and the current structural data on the polymerases. Those comparisons inform us on the evolution of related RNA synthesis machines which use two distinct mechanisms for mRNA cap formation.
DOI: 10.1371/journal.ppat.1001038
发表时间: 2010-09-16
期刊: PLoS pathogens
影响因子: 6.7
作者:
Morin B;Coutard B;Lelke M;Ferron F;Kerber R;Jamal S;Frangeul A;Baronti C;Charrel R;de Lamballerie X;Vonrhein C;Lescar J;Bricogne G;Günther S;Canard B
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