IFITM proteins inhibit HIV-1 protein synthesis.
IFITM proteins inhibit HIV-1 protein synthesis.
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IFITM蛋白抑制HIV-1蛋白合成。
DOI:
10.1038/s41598-018-32785-5
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发表时间:
2018-09-28
影响因子:
4.6
通讯作者:
Sloan RD
中科院分区:
文献类型:
--
作者:
Lee WJ;Fu RM;Liang C;Sloan RD
Interferon induced transmembrane proteins (IFITMs) inhibit the cellular entry of a broad range of viruses, but it has been suspected that for HIV-1 IFITMs may also inhibit a post-integration replicative step. We show that IFITM expression reduces HIV-1 viral protein synthesis by preferentially excluding viral mRNA transcripts from translation and thereby restricts viral production. Codon-optimization of proviral DNA rescues viral translation, implying that IFITM-mediated restriction requires recognition of viral RNA elements. In addition, we find that expression of the viral accessory protein Nef can help overcome the IFITM-mediated inhibition of virus production. Our studies identify a novel role for IFITMs in inhibiting HIV replication at the level of translation, but show that the effects can be overcome by the lentiviral protein Nef.
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