Regulation of innate immunity through RNA structure and the protein kinase PKR.

Regulation of innate immunity through RNA structure and the protein kinase PKR.
复制标题

DOI:
10.1016/j.sbi.2010.11.003
复制
发表时间:
2011-02
影响因子:
6.8
通讯作者:
Bevilacqua, Philip C.
Bevilacqua, Philip C.
中科院分区:
生物学2区
文献类型:
--
作者:
Nallagatla, Subba Rao;Toroney, Rebecca;Bevilacqua, Philip C.

文献摘要

参考文献

被引文献

相似文献

RNA结构的分子识别是先天免疫的关键。蛋白激酶PKR通过识别RNA中的分子模式来区分自我和非我。某些生物RNA诱导PKR的自动磷酸化,激活它使真核细胞起始因子2α(eIF2α)磷酸化,从而抑制翻译。额外的生物RNA抑制PKR,而其他生物RNA则没有作用。本文的目的是建立一个连贯的框架,以便在不同的RNA结构背景下理解和预测PKR的功能。我们介绍了最近表征的病毒和细胞RNA对PKR和siRNAs的调节作用。一个核心结论是,在生物RNA的背景下,可访问的长双链RNA(DsRNA)元件的组装在调节PKR激酶方面发挥着关键作用。在生物学中形成这些元件的策略包括RNA二聚化、对称螺旋缺陷的形成、A型dsRNA模仿和螺旋的同轴堆积。
Molecular recognition of RNA structure is key to innate immunity. The protein kinase PKR differentiates self from non-self by recognition of molecular patterns in RNA. Certain biological RNAs induce autophosphorylation of PKR, activating it to phosphorylate eukaryotic initiation factor 2α (eIF2α), which leads to inhibition of translation. Additional biological RNAs inhibit PKR, while still others have no effect. The aim of this article is to develop a cohesive framework for understanding and predicting PKR function in the context of diverse RNA structure. We present effects of recently characterized viral and cellular RNAs on regulation of PKR, as well as siRNAs. A central conclusion is that assembly of accessible long double-stranded RNA (dsRNA) elements within the context of biological RNAs plays a key role in regulation of PKR kinase. Strategies for forming such elements in biology include RNA dimerization, formation of symmetrical helical defects, A-form dsRNA mimicry, and coaxial stacking of helices.
DOI: 10.1371/journal.ppat.1000473
发表时间: 2009-06
期刊: PLoS pathogens
影响因子: 6.7
作者:
Dauber B;Martínez-Sobrido L;Schneider J;Hai R;Waibler Z;Kalinke U;García-Sastre A;Wolff T
通讯作者: Wolff T
DOI: 10.1038/nsb1004
发表时间: 2003-12-01
期刊: NATURE STRUCTURAL BIOLOGY
影响因子: --
作者:
Lukavsky, PJ;Kim, I;Puglisi, JD
通讯作者: Puglisi, JD
DOI: 10.4049/jimmunol.180.11.7125
发表时间: 2008-06-01
影响因子: 4.4
作者:
Armstrong, Michelle E.;Gantier, Michael;Donnelly, Seamas C.
通讯作者: Donnelly, Seamas C.
DOI: 10.1016/j.cell.2010.01.001
发表时间: 2010-02-05
期刊: Cell
影响因子: 64.5
作者:
Nakamura T;Furuhashi M;Li P;Cao H;Tuncman G;Sonenberg N;Gorgun CZ;Hotamisligil GS
通讯作者: Hotamisligil GS
DOI: 10.1038/nbt1051
发表时间: 2005-02-01
影响因子: 46.9
作者:
Kim, DH;Behlke, MA;Rossi, JJ
通讯作者: Rossi, JJ