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Expression of EBV LMP1 C-terminal protein and preparation of its polyclonal antibody |
MAO Shanshan, WANG Lude, ZHOU Meng, LYU Kaiji, ZHU Jinshun, Kamara Saidu, YE Xiaoxian, ZHANG Lifang. |
Institute of Molecular and Immunology, Department of Medical Microbiology and Immunology, Wenzhou Medical University, Wenzhou, 325035 |
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Cite this article: |
MAO Shanshan,WANG Lude,ZHOU Meng, et al. Expression of EBV LMP1 C-terminal protein and preparation of its polyclonal antibody[J]. JOURNAL OF WEZHOU MEDICAL UNIVERSITY, 2018, 48(7): 469-473.
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Abstract Objective: To prepare EBV LMP1 C-terminal (187-386 aa) protein by prokaryotic expression system and polyclonal antibody against it and verify its biological character. Methods: A prokaryotic vector pET21a(+)/EBV LMP1 C-terminal (187-386 aa) was constructed and transformed into E.coli BL21 (DE3), and then the recombinant protein was induced by IPTG and purified by Ni-NTA affinity chromatography. SDS-PAGE and Western blot analysis demonstrated the purified LMP1 C-terminal protein was expressed correctly. To obtain the polyclonal antibody, the rabbit was immunized with the purified LMP1 C-terminal recombinant protein. An analysis of polyclonal antibody was made by ELISA, Western blot and immunofluorescence technique. Results: The recombinant protein of LMP1 C-terminal was successfully expressed and purified by the prokaryotic expression system. The polyclonal antibody was obtained by immunizing the rabbits with the recombinant protein. Conclusion: The recombinant protein of LMP1 C-terminal has strong immunogenicity and the polyclonal antibody of LMP1 C-terminal has high titer and specificity.
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Received: 14 December 2017
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