Ubiquitin E3 Ligase c-Cbl Is a Host Negative Regulator of Nef Protein of HIV-1.
Ubiquitin E3 Ligase c-Cbl Is a Host Negative Regulator of Nef Protein of HIV-1.
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泛素 E3 连接酶 c-Cbl 是 HIV-1 Nef 蛋白的宿主负调节因子。
DOI:
10.3389/fmicb.2020.597972
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发表时间:
2020
影响因子:
5.2
通讯作者:
Qian F
中科院分区:
文献类型:
--
作者:
Zhang HG;Guo J;Yuan Y;Zuo Y;Liu J;Zhu L;Miao Y;Chen X;Jin L;Huang F;Ren T;He J;Shi W;Wen Z;Zhu C;Zheng H;Dong C;Qian F
Nef is an accessory protein encoded by human immunodeficiency virus type-1 (HIV-1) and plays important roles in regulating HIV-1 infection and viral replication. Interestingly, HIV-1 Nef can promote degradation of numerous host proteins to disrupt cellular antiviral immune response. However, how HIV-1 Nef is degraded by host factors remains largely unexplored. Here, we identified c-Cbl as a host ubiquitin E3 ligase of HIV-1 Nef. We found that c-Cbl interacts with Nef and reduces protein levels of HIV-1 Nef. Further studies demonstrated that c-Cbl promoted Lys48-linked polyubiquitination of HIV-1 Nef, thus attenuating protein stability of HIV-1 Nef. Importantly, cellular c-Cbl ubiquitinated and degraded Nef proteins produced by HIV-1 NL4-3 virions, and ultimately attenuated HIV-1 virulence for infection of THP1 cells. This study reveals a ubiquitination and proteasome-dependent degradation mechanism of HIV-1 Nef protein, and could provide potential strategies for fighting against HIV-1.
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影响因子:
7.7
作者:
Ren X;Park SY;Bonifacino JS;Hurley JH
通讯作者:
Hurley JH
影响因子:
5.7
作者:
Arold, S;Franken, P;Dumas, C
通讯作者:
Dumas, C
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3.7
作者:
Li W;Bengtson MH;Ulbrich A;Matsuda A;Reddy VA;Orth A;Chanda SK;Batalov S;Joazeiro CA
通讯作者:
Joazeiro CA
影响因子:
64.5
作者:
Chen, Weilin;Han, Chaofeng;Cao, Xuetao
通讯作者:
Cao, Xuetao
DOI:
10.1016/j.bbrc.2020.05.188
发表时间:
2020-09-03
影响因子:
3.1
作者:
Ali, Amjad;Farooqui, Sabihur Rahman;Banerjea, Akhil C.
通讯作者:
Banerjea, Akhil C.