Stability of HIV-1 subtype B and C Tat is associated with variation in the carboxyl-terminal region
Stability of HIV-1 subtype B and C Tat is associated with variation in the carboxyl-terminal region
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HIV-1 B 和 C 亚型 Tat 的稳定性与羧基末端区域的变异相关
DOI:
10.1007/s12250-016-3681-0
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发表时间:
2016-03
影响因子:
5.5
通讯作者:
Kong Xiaohong
中科院分区:
文献类型:
--
作者:
Zhao Xuechao;Qian Lingyu;Zhou Deyu;Qi Di;Liu Chang;Kong Xiaohong
The multifunctional trans-activator Tat is an essential regulatory protein for HIV-1 replication and is characterized by high sequence diversity. Numerous experimental studies have examined Tat in HIV-1 subtype B, but research on subtype C Tat is lacking, despite the high prevalence of infections caused by subtype C worldwide. We hypothesized that amino acid differences contribute to functional differences among Tat proteins. In the present study, we found that subtype B NL4-3 Tat and subtype C isolate HIV1084i Tat exhibited differences in stability by overexpressing the fusion protein Tat-Flag. In addition, 1084i Tat can activate LTR and NF-κB more efficiently than NL4-3 Tat. In analyses of the activities of the truncated forms of Tat, we found that the carboxyl-terminal region of Tat regulates its stability and transactivity. According to our results, we speculated that the differences in stability between B-Tat and C-Tat result in differences in transactivation ability.
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影响因子:
14.9
作者:
López-Huertas MR;Callejas S;Abia D;Mateos E;Dopazo A;Alcamí J;Coiras M
通讯作者:
Coiras M
影响因子:
--
作者:
A. Gatignol;A. Gatignol;K. Jeang
通讯作者:
A. Gatignol;A. Gatignol;K. Jeang
DOI:
10.1073/pnas.89.20.9734
发表时间:
1992-10-15
影响因子:
11.1
作者:
LORET, EP;GEORGEL, P;HO, PS
通讯作者:
HO, PS
影响因子:
3.7
作者:
Philippe Roof;M. Ricci;P. Génin;M. Montano;M. Essex;M. Wainberg;A. Gatignol;J. Hiscott
通讯作者:
Philippe Roof;M. Ricci;P. Génin;M. Montano;M. Essex;M. Wainberg;A. Gatignol;J. Hiscott
影响因子:
14.9
作者:
Fiume G;Vecchio E;De Laurentiis A;Trimboli F;Palmieri C;Pisano A;Falcone C;Pontoriero M;Rossi A;Scialdone A;Fasanella Masci F;Scala G;Quinto I
通讯作者:
Quinto I