Nef proteins from simian immunodeficiency viruses are tetherin antagonists.
Nef proteins from simian immunodeficiency viruses are tetherin antagonists.
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DOI:
10.1016/j.chom.2009.05.008
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发表时间:
2009-07-23
影响因子:
30.3
通讯作者:
Hatziioannou T
中科院分区:
文献类型:
--
作者:
Zhang F;Wilson SJ;Landford WC;Virgen B;Gregory D;Johnson MC;Munch J;Kirchhoff F;Bieniasz PD;Hatziioannou T
The tetherin/BST2/CD317 protein blocks the release of HIV-1 and other enveloped viruses by inducing tethering of nascent particles to infected cell surfaces. The HIV-1 Vpu protein antagonizes the antiviral activity of human but not monkey tetherins and many simian immunodeficiency viruses (SIVs) do not encode Vpu. Here, we show that the apparently ‘missing’ anti-tetherin activity in SIVs has been acquired by several SIV Nef proteins. Specifically, SIVMAC/SIVSMM, SIVAGM and SIVBLU Nef proteins can suppress tetherin activity. Notably, tetherin antagonism by SIV Nef proteins is species-specific, is genetically separable from other Nef activities and is most evident with simian rather than human tetherin proteins. Accordingly, a critical determinant of sensitivity to SIVMAC Nef in the tetherin cytoplasmic tail is variable in nonhuman primate tetherins and deleted in human tetherin, likely due to selective pressures imposed by viral antagonists, perhaps including Nef proteins.
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影响因子:
5.4
作者:
Alexander, L;Du, ZJ;Desrosiers, RC
通讯作者:
Desrosiers, RC
影响因子:
5.4
作者:
Münch, J;Schindler, M;Kirchhoff, F
通讯作者:
Kirchhoff, F
影响因子:
6.7
作者:
McNatt, Matthew W.;Zang, Trinity;Hatziioannou, Theodora;Bartlett, Mackenzie;Ben Fofana, Ismael;Johnson, Welkin E.;Neil, Stuart J. D.;Bieniasz, Paul D.
通讯作者:
Bieniasz, Paul D.
影响因子:
82.9
作者:
Schwartz, O;Marechal, V;Heard, JM
通讯作者:
Heard, JM
DOI:
10.1073/pnas.221256498
发表时间:
2001-10-09
影响因子:
11.1
作者:
Stumptner-Cuvelette, P;Morchoisne, S;Benaroch, P
通讯作者:
Benaroch, P