甲型H1N1流感病毒HA基因在昆虫细胞中的截短表达

中国生物工程杂志

2011, Vol. 31

Issue (10): 18-22

研究报告

甲型H1N1流感病毒HA基因在昆虫细胞中的截短表达

贾园^1,2, 沈阳¹, 邱亚峰¹, 史子学¹, 邵东华¹, 王晓杜¹, 邓绪芳¹, 王皓婷¹, 赵福广², 马志永¹

1. 中国农业科学院上海兽医研究所上海 200241;
2. 吉林农业大学长春 130061

Baculovirus Expression of Truncated HA Gene of A/H1N1 Influence Virus

JIA Yuan^1,2, SHEN Yang¹, QIU Ya-feng¹, SHI Zi-xue¹, SHAO Dong-hua¹, WANG Xiao-du¹, DENG Xu-Fang¹, WANG Hao-ting¹, ZHAO Fu-guang², MA Zhi-yong¹

1. Shanghai Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, Shanghai 200237, China;
2. Jilin Agricultural University, Changchun 130118, China

全文: PDF(892 KB) HTML

摘要：

目的:利用Bac-to-Bac Baculovirus Expression System表达重组HA蛋白,Western blot及IFA方法鉴定其表达。方法:采用PCR方法扩增A/California/04/2009(H1N1)HA基因,将其克隆到pFastBacHT A载体上,重组质粒pFastBacHT-HA经双酶切及测序鉴定正确后,转化阳性重组载体进入E.coli DH10Bac感受态细胞中,通过Bluo-gal蓝白斑筛选、PCR鉴定获得重组转座子rBacmid-HA。从重组转座子中提取rBacmid-HA质粒DNA转染sf 9昆虫细胞,制备重组杆状病毒。重组杆状病毒感染sf 9细胞表达重组蛋白,Western blot及IFA鉴定重组蛋白表达情况。结论:成功构建了甲型H1N1流感病毒HA基因的昆虫杆状病毒表达载体,该表达载体转染昆虫细胞后制备的重组杆状病毒病毒滴度较高,重组杆状病毒表达的重组蛋白经Western blot 及IFA 鉴定后具有良好的免疫反应原性。

关键词： 甲型H1N1; Bac-to-Bac; Baculovirus; Expression; System; HA

Abstract:

Object: In order to express recombinant HA protein using the Bac-to-Bac Baculovirus Expression System. The expression of the recombinant HA protein was confirmed by Western blot and IFA. Method: A/California/04/2009(H1N1)HA gene was amplified by PCR, and the PCR product was cloned into the pFastBacHT A vector. The recombinant plasmid pFastBacHT-HA was identified by restriction enzyme digestion and gene sequencing. The recombinant plasmid pFastBacHT-HA was subsequently transformed into E. coli DH10Bac component cells. The recombinant rbacmid-HA identified by Bluo-gal blue/white selection and PCR was purified and transfected into sf 9 cells. The P1 virus obtained from sf 9 cells was amplified and stocked. The sf 9 cells infected with the baculovirus was harvested and analyzed for detection of the expression of recombinant protein by Western blot and IFA. Conclusion: The expression vector engineered for expressing A/H1N1 influence virus HA gene was constructed, which was transfected into insect cells, The recombinant baculovirus with higher viral titer was obtained. The recombinant protein was expressed by recombinant baculovirus in the infected sf 9 cell and identified by Western blot and IFA, demonstrating that the truncated HA protein can be recognized by the antibody specific to HA of 2009 H1N1 influenza virus.

Key words: A/H1N1 influenza virus Bac-to-Bac Baculovirus Expression System HA

收稿日期: 2011-03-22 出版日期: 2011-10-25

ZTFLH:

Q786

基金资助:

转基因生物新品种培育科技重大专项(20092X08010-022B);上海市科技兴农重点攻关项目(沪农科攻文2009第5-2号)资助项目

通讯作者: 马志永 E-mail: zhiyongma@shvri.ac.cn

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引用本文:

贾园, 沈阳, 邱亚峰, 史子学, 邵东华, 王晓杜, 邓绪芳, 王皓婷, 赵福广, 马志永. 甲型H1N1流感病毒HA基因在昆虫细胞中的截短表达[J]. 中国生物工程杂志, 2011, 31(10): 18-22.

JIA Yuan, SHEN Yang, QIU Ya-feng, SHI Zi-xue, SHAO Dong-hua, WANG Xiao-du, DENG Xu-Fang, WANG Hao-ting, ZHAO Fu-guang, MA Zhi-yong. Baculovirus Expression of Truncated HA Gene of A/H1N1 Influence Virus. China Biotechnology, 2011, 31(10): 18-22.

链接本文:

https://manu60.magtech.com.cn/biotech/CN/ 或 https://manu60.magtech.com.cn/biotech/CN/Y2011/V31/I10/18

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