Defining HIV-1 Vif residues that interact with CBFβ by site-directed mutagenesis.
Defining HIV-1 Vif residues that interact with CBFβ by site-directed mutagenesis.
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定义通过位置诱变与CBFβ相互作用的HIV-1 VIF残基。
DOI:
10.1016/j.virol.2013.11.004
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发表时间:
2014-01-20
期刊:
影响因子:
3.7
通讯作者:
Takaori-Kondo, Akifumi
中科院分区:
文献类型:
--
作者:
Matsui, Yusuke;Shindo, Keisuke;Nagata, Kayoko;Lo, Katsuhiro;Tada, Kohei;Iwai, Fumie;Kobayashi, Masayuki;Kadowaki, Norimitsu;Harris, Reuben S.;Takaori-Kondo, Akifumi
Vif is essential for HIV-1 replication in T cells and macrophages. Vif recruits a host ubiquitin ligase complex to promote proteasomal degradation of the APOBEC3 restriction factors by poly-ubiquitination. The cellular transcription cofactor CBFβ is required for Vif function by stabilizing the Vif protein and promoting recruitment of a cellular Cullin5-RING ubiquitin ligase complex. Interaction between Vif and CBFβ is a promising therapeutic target, but little is known about the interfacial residues. We now demonstrate that Vif conserved residues E88/W89 are crucial for CBFβ binding. Substitution of E88/W89 to alanines impaired binding to CBFβ, degradation of APOBEC3, and virus infectivity in the presence of APOBEC3 in single-cycle infection. In spreading infection, NL4-3 with Vif E88A/W89A mutation replicated comparably to wild-type virus in permissive CEM-SS cells, but not in multiple APOBEC3 expressing non-permissive CEM cells. These results support a model in which HIV-1 Vif residues E88/W89 may participate in binding CBFβ.
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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:
16
作者:
Kim, Dong Young;Kwon, Eunju;Hartley, Paul D.;Crosby, David C.;Mann, Sumanjit;Krogan, Nevan J.;Gross, John D.
通讯作者:
Gross, John D.
影响因子:
64.8
作者:
Sheehy, AM;Gaddis, NC;Malim, MH
通讯作者:
Malim, MH
影响因子:
6.7
作者:
Bergeron JR;Huthoff H;Veselkov DA;Beavil RL;Simpson PJ;Matthews SJ;Malim MH;Sanderson MR
通讯作者:
Sanderson MR