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Intracellular localized heterogeneous protein franking by a transmembrane domain of GP64 is sufficient to be assembled on budded virions of Bombyx mori nucleopolyhedrovirus

文献类型： 外文期刊

作者： Hao, Yufeng 1 ; Liu, Na 1 ; Li, Jingfeng 1 ; Gyawu, Stephen Baffour 1 ; Setshogo, Ogone Emeldah 1 ; Huang, Jinshan 1 ; Hao, Bifang 1 ;

作者机构： 1.Jiangsu Univ Sci & Technol, Sch Biotechnol, Jiangsu Key Lab Sericultural Biol & Biotechnol, Zhenjiang 212100, Jiangsu, Peoples R China

2.Chinese Acad Agr Sci, Sericultural Scient Res Ctr, Key Lab Silkworm & Mulberry Genet Improvement, Minist Agr & Rural Affairs, Zhenjiang 212100, Jiangsu, Peoples R China

关键词： Clonal cell line; Baculovirus; Budded virus; Surface display; Membrane protein

期刊名称：JOURNAL OF VIROLOGICAL METHODS （ 影响因子：3.1； 五年影响因子：2.4 ）

ISSN： 0166-0934

年卷期： 2024 年 327 卷

页码：

收录情况： SCI

摘要： Baculovirus has been widely used for foreign protein expression in biomedical studies, and budded virus (BV) surface display has developed into an important research tool for heterogenous membrane protein studies. The basic strategy of surface display is to construct a recombinant virus where the target gene is fused with a complete or partial gp64 gene. In this study, we further investigate and develop this BV surface displaying strategy. We constructed stable insect cell lines to express the target protein flanking with different regions of signal peptide (SP) and GP64 transmembrane domain (TMD). Subsequently, recombinant BmNPV was used to infect the cell, and the integration of heterogeneous protein into BV was detected. The results indicated that deletion of the n-region of SP (SP Delta n ) decreased the incorporation rate more than that of the full-length SP. However, the incorporation rate of the protein fused with h and c-region deletion of SP (SP Delta h-c ) was significantly enhanced by 35 - 40 times compare to full-length SP. Moreover, the foreign protein without SP and TMD failed to display on the BV, while the integration of foreign proteins with GP64 TMD fusion at the c -terminal was significantly enhanced by 12 - 26 times compared to the control. Thus, these new strategies developed the BV surface display system further.

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