JIN Zhi-dong, HE Yong-lin, XU Lei, et al. Construction and identification of eukaryotic expression plasmid pBudCE4.1-PPE68 of Mycobacterium tuberculosis[J]. Journal of Chongqing Medical University, 2011,36(8):907-910.
JIN Zhi-dong, HE Yong-lin, XU Lei, et al. Construction and identification of eukaryotic expression plasmid pBudCE4.1-PPE68 of Mycobacterium tuberculosis[J]. Journal of Chongqing Medical University, 2011,36(8):907-910. DOI: 10.13406/j.cnki.cyxb.2011.08.001.
Objective:To construct and identify eukaryotic expression plasmid pBudCE4.1-PPE68 and observe its expression in murine macrophage RAW264.7 cells.Methods:MTB PPE68 gene was subcloned into pBudCE4.1 to construct recombinant plasmid pBudCE4.1-PPE68.The recombinant plasmid was transiently transfected into RAW264.7 cells
and the expression of PPE68 gene was detected by RT-PCR and Western blot.Results:The accurate eukaryotic recombinant plasmid pBudCE4.1-PPE68 was identified by restrict endonuclease.The PPE68 gene expression product in RAW264.7 cells was detected by RT-PCR、Western blotting.Conclusion:The recombinant plasmid pBudCE4.1-PPE68 was successfully constructed.The protein can be expressed in murine macrophage RAW264.7.The present study provides an experimental basis for further study of the PPE68 protein of Mycobacterium tuberculosis.