Structural basis for HIV-1 antagonism of host APOBEC3G via Cullin E3 ligase.
Structural basis for HIV-1 antagonism of host APOBEC3G via Cullin E3 ligase.
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宿主APOBEC3G通过Cullin E3连接酶拮抗HIV-1的结构基础
DOI:
10.1126/sciadv.ade3168
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发表时间:
2023-01-04
期刊:
影响因子:
13.6
通讯作者:
中科院分区:
文献类型:
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作者:
Human APOBEC3G (A3G) is a virus restriction factor that inhibits HIV-1 replication and triggers lethal hypermutation on viral reverse transcripts. HIV-1 viral infectivity factor (Vif) breaches this host A3G immunity by hijacking a cellular E3 ubiquitin ligase complex to target A3G for ubiquitination and degradation. The molecular mechanism of A3G targeting by Vif-E3 ligase is unknown, limiting the antiviral efforts targeting this host-pathogen interaction crucial for HIV-1 infection. Here, we report the cryo–electron microscopy structures of A3G bound to HIV-1 Vif in complex with T cell transcription cofactor CBF-β and multiple components of the Cullin-5 RING E3 ubiquitin ligase. The structures reveal unexpected RNA-mediated interactions of Vif with A3G primarily through A3G’s noncatalytic domain, while A3G’s catalytic domain is poised for ubiquitin transfer. These structures elucidate the molecular mechanism by which HIV-1 Vif hijacks the host ubiquitin ligase to specifically target A3G to establish infection and offer structural information for the rational development of antiretroviral therapeutics. Structure of HIV-1 Vif and E3 ligase in complex with host APOBEC3G illuminates a basis for immune evasion by HIV.
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DOI:
10.1107/s2059798318009324
发表时间:
2018-09-01
期刊:
Acta crystallographica. Section D, Structural biology
影响因子:
--
作者:
Afonine PV;Klaholz BP;Moriarty NW;Poon BK;Sobolev OV;Terwilliger TC;Adams PD;Urzhumtsev A
通讯作者:
Urzhumtsev A
影响因子:
16.6
作者:
Bohn JA;Thummar K;York A;Raymond A;Brown WC;Bieniasz PD;Hatziioannou T;Smith JL
通讯作者:
Smith JL
影响因子:
64.8
作者:
Jaeger, Stefanie;Kim, Dong Young;Hultquist, Judd F.;Shindo, Keisuke;LaRue, Rebecca S.;Kwon, Eunju;Li, Ming;Anderson, Brett D.;Yen, Linda;Stanley, David;Mahon, Cathal;Kane, Joshua;Franks-Skiba, Kathy;Cimermancic, Peter;Burlingame, Alma;Sali, Andrej;Craik, Charles S.;Harris, Reuben S.;Gross, John D.;Krogan, Nevan J.
通讯作者:
Krogan, Nevan J.
影响因子:
64.5
作者:
Harris, RS;Bishop, KN;Malim, MH
通讯作者:
Malim, MH
影响因子:
14.9
作者:
Bélanger K;Savoie M;Rosales Gerpe MC;Couture JF;Langlois MA
通讯作者:
Langlois MA