The role of viral protein Ac34 in nuclear relocation of subunits of the actin-related protein 2/3 complex
The role of viral protein Ac34 in nuclear relocation of subunits of the actin-related protein 2/3 complex
复制标题
病毒蛋白 Ac34 在肌动蛋白相关蛋白 2/3 复合体亚基核重定位中的作用
DOI:
10.1007/s12250-016-3912-4
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发表时间:
2016-12
影响因子:
5.5
通讯作者:
Wang Yun
中科院分区:
文献类型:
--
作者:
Mu Jingfang;Zhang Yongli;Hu Yangyang;Hu Xue;Zhou Yuan;Chen Xinwen;Wang Yun
The actin nucleator actin-related protein complex (Arp2/3) is composed of seven subunits: Arp2, Arp3, p40/ARPC1 (P40), p34/ARPC2 (P34), p21/ARPC3 (P21), p20/ARPC4 (P20), and p16/ARPC5 (P16). Arp2/3 plays crucial roles in a variety of cellular activities through regulation of actin polymerization.Autographa californicamultiple nucleopolyhedrovirus (AcMNPV), one of the beststudied alphabaculoviruses, induces Arp2/3 nuclear relocation and mediates nuclear actin polymerization to assist in virus replication. We have demonstrated that Ac34, a viral late-gene product, induces translocation of the P40 subunit of Arp2/3 to the nucleus during AcMNPV infection. However, it remains unknown whether Ac34 could relocate other Arp2/3 subunits to the nucleus. In this study, the effects of the viral protein Ac34 on the distribution of these subunits were studied by an immunofluorescence assay. Arp2, P34, P21, and P20 cloned fromSpodoptera frugiperda(Sf9) cells showed mainly cytoplasmic localization and were relocated to the nucleus in the presence of Ac34. In addition, Arp3 was localized in the cytoplasm in both the presence and absence of Ac34, and P16 showed whole-cell localization. In contrast to Sf9 cells, all subunits of mammalian Arp2/3 showed no nuclear relocation in the presence of Ac34. Co-immunoprecipitation analysis of the interaction between Ac34 and Arp2/3 subunits revealed that Ac34 bound to P40, P34, and P20 of Sf9 cells. However, none of the subunits of mammalian Arp2/3 interacted with Ac34, indicating that protein-protein interaction is essential for Ac34 to relocate Arp2/3 subunits to the nucleus.
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DOI:
10.1083/jcb.146.2.267
发表时间:
1999-07-26
期刊:
The Journal of cell biology
影响因子:
--
作者:
Machesky LM;Insall RH
通讯作者:
Insall RH
DOI:
10.1083/jcb.201001162
发表时间:
2010-07-26
期刊:
The Journal of cell biology
影响因子:
--
作者:
Ohkawa T;Volkman LE;Welch MD
通讯作者:
Welch MD
DOI:
10.1073/pnas.1131933100
发表时间:
2003-05-27
影响因子:
11.1
作者:
Percipalle, P;Fomproix, N;Visa, N
通讯作者:
Visa, N
影响因子:
3.7
作者:
Salem TZ;Zhang F;Thiem SM
通讯作者:
Thiem SM
影响因子:
6.7
作者:
Mu J;Zhang Y;Hu Y;Hu X;Zhou Y;Zhao H;Pei R;Wu C;Chen J;Zhao H;Yang K;Oers MM;Chen X;Wang Y
通讯作者:
Wang Y