Enterovirus Infection Restricts Long Interspersed Element 1 Retrotransposition.

Enterovirus Infection Restricts Long Interspersed Element 1 Retrotransposition.
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肠道病毒感染限制长散布元件 1 逆转座。

DOI:
10.3389/fmicb.2021.706241
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发表时间:
2021
影响因子:
5.2
通讯作者:
Wei W
Wei W
中科院分区:
生物学2区
文献类型:
--
作者:
Li Y;Shen S;Guo H;Zhang Z;Zhang L;Yang Q;Gao Y;Niu J;Wei W

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相似文献

长散布元件1(LINE-1或L1)是人类基因组中唯一的活性自主反转录转座子,其可以充当细胞质核酸传感途径的内源性上游激活剂以引发抗病毒免疫应答。在这项研究中,我们调查了肠道病毒感染对L1迁移率的影响。结果表明,不同的肠道病毒,EV-D 68和EV-A71感染,阻断L1转座。我们筛选了不同的病毒辅助蛋白的L1活性,并确定EV-D 68 2A,3A,3C,和EV-A71 ORF 2 p蛋白作为病毒L1抑制剂。EV-D 68 2A通过抑制L1蛋白的表达而抑制L1迁移率。在分离的L1核糖核蛋白中,病毒蛋白3A和3C限制ORF 2 p介导的L1逆转录。新发现的肠道病毒蛋白ORF 2 p抑制L1 ORF 1 p的表达。总之,我们的研究结果揭示了肠道病毒复制过程中L1逆转录转座子的严格调节。
Long interspersed element 1 (LINE-1 or L1) is the only active autonomous retrotransposon in the human genome that can serve as an endogenous upstream activator of cytoplasmic nucleic acid sensing pathways to elicit an antiviral immune response. In this study, we investigated the influence of enteroviral infection on L1 mobility. The results showed that infection with different enteroviruses, both EV-D68 and EV-A71, blocked L1 transposition. We screened diverse viral accessory proteins for L1 activity and identified EV-D68 2A, 3A, 3C, and EV-A71 ORF2p proteins as viral L1 inhibitors. EV-D68 2A suppressed L1 mobility by expression suppression of L1 proteins. Viral proteins 3A and 3C restricted ORF2p-mediated L1 reverse transcription in isolated L1 ribonucleoproteins. The newly identified enteroviral protein ORF2p inhibited the expression of L1 ORF1p. Altogether, our findings shed light on the strict modulation of L1 retrotransposons during enterovirus replication.
DOI: 10.1146/annurev-genom-082509-141802
发表时间: 2011
影响因子: 8.7
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Beck CR;Garcia-Perez JL;Badge RM;Moran JV
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