HIV-1 Tat impairs cell cycle control by targeting the Tip60, Plk1 and cyclin B1 ternary complex
HIV-1 Tat impairs cell cycle control by targeting the Tip60, Plk1 and cyclin B1 ternary complex
复制标题
HIV-1 Tat 通过靶向 Tip60、Plk1 和细胞周期蛋白 B1 三元复合物损害细胞周期控制
DOI:
10.4161/cc.11.6.19664
复制
发表时间:
2012-03
期刊:
影响因子:
4.3
通讯作者:
Zhou Ping-Kun
中科院分区:
文献类型:
--
作者:
Shi-Meng Zhang;Maoyong Song;Tian-Yi Yang;Rong Fan;Xiao-Dan Liu;Zhou Ping-Kun
HIV-1 Tat triggers intrinsic and extrinsic apoptosis pathways in both infected and uninfected cells and plays an important role in the pathogenesis of AIDS. Knocking down Tip60, an interactive protein of Tat, leads to the impairment of cell cycle progression, indicating a key role of Tip60 in cell cycle control. We found that Tip60 interacts with Plk1 through its ZnFMYST domain, and that this interaction is enhanced in the G2/M phase. In addition, cyclin B1 was confirmed to interact with the ZnF domain of Tip60. Immunofluorescence imaging showed that Tip60 co-localizes with both Plk1 and cyclin B1 at the centrosome during the mitotic phase and to the mid-body during cytokinesis. Further experiments revealed that Tip60 forms a ternary complex with Plk1 and cyclin B1 and acetylates Plk1 but not cyclin B1. HIV-1 Tat likely forms a quaternary complex with Tip60, cyclin B1 and Plk1. Fluorescent microscopy showed that Tat causes an unscheduled nuclear translocation of both cyclin B1 and Plk1, causing their co-localization with Tip60 in the nucleus. Tat, Tip60, cyclin B1 and Plk1 interactions provide new a mechanistic explanation for Tat-mediated cell cycle dysregulation and apoptosis.
登录
查看更多内容
DOI:
10.1073/pnas.94.2.502
发表时间:
1997-01-21
影响因子:
11.1
作者:
Li, J;Meyer, AN;Donoghue, DJ
通讯作者:
Donoghue, DJ
影响因子:
16
作者:
Charvet C;Wissler M;Brauns-Schubert P;Wang SJ;Tang Y;Sigloch FC;Mellert H;Brandenburg M;Lindner SE;Breit B;Green DR;McMahon SB;Borner C;Gu W;Maurer U
通讯作者:
Maurer U
影响因子:
56.9
作者:
Xiaoxi Megan Cao;T. Südhof
通讯作者:
Xiaoxi Megan Cao;T. Südhof
影响因子:
4.3
作者:
G. Visalli;M. Paiardini;C. Chirico;B. Cervasi;M. Currò;N. Ferlazzo;M. Bertuccio;A. Favaloro;G. Pellicanò;P. Spataro;R. Ientile;I. Picerno;G. Piedimonte
通讯作者:
G. Visalli;M. Paiardini;C. Chirico;B. Cervasi;M. Currò;N. Ferlazzo;M. Bertuccio;A. Favaloro;G. Pellicanò;P. Spataro;R. Ientile;I. Picerno;G. Piedimonte
影响因子:
2.9
作者:
Creaven, M;Hans, F;Khochbin, S
通讯作者:
Khochbin, S