HIV-1 Tat interacts with LIS1 protein.
HIV-1 Tat interacts with LIS1 protein.
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DOI:
10.1186/1742-4690-2-6
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发表时间:
2005-02-07
期刊:
影响因子:
3.3
通讯作者:
Nekhai S
中科院分区:
文献类型:
--
作者:
Epie N;Ammosova T;Sapir T;Voloshin Y;Lane WS;Turner W;Reiner O;Nekhai S
HIV-1 Tat activates transcription of HIV-1 viral genes by inducing phosphorylation of the C-terminal domain (CTD) of RNA polymerase II (RNAPII). Tat can also disturb cellular metabolism by inhibiting proliferation of antigen-specific T lymphocytes and by inducing cellular apoptosis. Tat-induced apoptosis of T-cells is attributed, in part, to the distortion of microtubules polymerization. LIS1 is a microtubule-associated protein that facilitates microtubule polymerization. We identified here LIS1 as a Tat-interacting protein during extensive biochemical fractionation of T-cell extracts. We found several proteins to co-purify with a Tat-associated RNAPII CTD kinase activity including LIS1, CDK7, cyclin H, and MAT1. Tat interacted with LIS1 but not with CDK7, cyclin H or MAT1 in vitro. LIS1 also co-immunoprecipitated with Tat expressed in HeLa cells. Further, LIS1 interacted with Tat in a yeast two-hybrid system. Our results indicate that Tat interacts with LIS1 in vitro and in vivo and that this interaction might contribute to the effect of Tat on microtubule formation.
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影响因子:
3.3
作者:
de Mareuil J;Carre M;Barbier P;Campbell GR;Lancelot S;Opi S;Esquieu D;Watkins JD;Prevot C;Braguer D;Peyrot V;Loret EP
通讯作者:
Loret EP
影响因子:
5.3
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El Kharroubi, A;Piras, G;Martin, MA
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Martin, MA
影响因子:
1.5
作者:
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Camussi, G
影响因子:
5.6
作者:
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通讯作者:
Karn, J
影响因子:
2.9
作者:
GarciaHiguera, I;Fenoglio, J;Neer, EJ
通讯作者:
Neer, EJ