Rab3a, a small GTP-binding protein, is required for the stabilization of the murine leukaemia virus Gag protein
Rab3a, a small GTP-binding protein, is required for the stabilization of the murine leukaemia virus Gag protein
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Rab3a 是一种小型 GTP 结合蛋白,是稳定鼠白血病病毒 Gag 蛋白所必需的
DOI:
10.1080/21541248.2021.1939631
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Kubo Yoshinao
中科院分区:
文献类型:
--
作者:
Izumida Mai;Kakoki Katsura;Hayashi Hideki;Matsuyama Toshifumi;Kubo Yoshinao
We recently identified a CD63-interacting protein to understand the role of CD63 in virion production of the human immunodeficiency virus type 1, and we have found that Rab3a forms a complex with CD63. In this study, we analysed the effect of Rab3a on virion production of the murine leukaemia virus (MLV), which is another member of the retrovirus family. We found that Rab3a silencing induced lysosomal degradation of the MLV Gag protein, and recovery of the Rab3a expression restored the level of the Gag protein through a complex formation of MLV Gag and Rab3a, indicating that Rab3a is required for MLV Gag protein expression. In contrast, CD63 silencing decreased the infectivity of released virions but had no effect on virion production, indicating that CD63 facilitates the infectivity of released MLV particles. Although Rab3a induced CD63 degradation in uninfected cells, the complex of MLV Gag and Rab3a suppressed the Rab3a-mediated CD63 degradation in MLV-infected cells. Finally, we found that the MLV Gag protein interacts with Rab3a to stabilize its own protein and CD63 that facilitates the infectivity of released MLV particles. Considering the involvement of Rab3a in lysosome trafficking to the plasma membrane, it may also induce cell surface transport of the MLV Gag protein.
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影响因子:
1.4
作者:
Enqing Fu;L. Pan;Yonghong Xie;D. Mu;W. Liu;F. Jin;X. Bai
通讯作者:
X. Bai
影响因子:
7.8
作者:
C. Raiborg;H. Stenmark
通讯作者:
H. Stenmark
影响因子:
4.8
作者:
Li G;Endsley MA;Somasunderam A;Gbota SL;Mbaka MI;Murray JL;Ferguson MR
通讯作者:
Ferguson MR
影响因子:
5.4
作者:
Haller, Claudia;Mueller, Birthe;Fackler, Oliver T.
通讯作者:
Fackler, Oliver T.
DOI:
--
发表时间:
1996
期刊:
Experimental hematology.
影响因子:
--
作者:
Onishi,M;Kinoshita,S;Morikawa,Y;Shibuya,A;Phillips,J;Lanier,LL;Gorman,DM;Nolan,GP;Miyajima,A;Kitamura,T
通讯作者:
Kitamura,T