猕猴B病毒囊膜蛋白gD基因真核细胞表达载体的构建及表达
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国家自然科学基金项目(31272387);十二五重大传染病专项(2011zx09201-031)。


Construction of eukaryotic vector of monkey B virus glycoprotein D gene and the gD gene expression
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    目的 构建猕猴B病毒囊膜蛋白gD的真核表达载体, 并且检测其在293T细胞内的表达情况。 方法 首先通过基因合成手段获得含B病毒gD蛋白的基因片段, 在经由PstⅠ和NotⅠ双酶切后连接到pEGFP-N3载体, 随后将构建的pEGFP-N3-GD重组质粒转染到人胚胎肾上皮细胞系293T细胞。再用Western blot检测所提蛋白其在细胞内的表达情况, 并用激光共聚焦分析其在细胞内的表达定位情况。 结果 成功获得携带gD基因的阳性重组质粒pEGFP-N3-GD, 且pEGFP-N3-GD重组质粒能在293T细胞的表面正常表达。 结论 利用真核表达系统, 既能够在细胞表面产生B病毒gD蛋白的特异性重组抗原, 而且可用于B检测抗原的制备。

    Abstract:

    Objective To establish an eukaryotic vector of monkey B virus glycoprotein D gene and analyze the expression of gD gene in human embryonic kidney 293T cells. Method First, the protein of monkey B virus glycoprotein D was obtained by gene synthesis. The gene fragments were digested with Pst I and Not I, and ligated to pEGPF-N3. Then, the recombinant plasmid pEGPF-N3-GD was transfected into 293T cells. The expression of gD protein in the cells was detected by Western blot, and the expression localization was investigated using laser scanning confocal microscopy. Results The recombinant plasmid pEGPF-N3 carrying gD gene was successfully constructed, and normally expressed in the 293T cells. Conclusions Glycoprotein D of monkey B virus is expressed successfully in the 293T cells and the protein is located on the cell surface. It may be useful for the preparation of specific recombinant antigen to the glycoprotein D of monkey B virus on cell surface, and can be also used for preparation of antigen slide for detection of monkey B virus.

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王新,易思萌,刘慧芳,马凯,范君文,马雨楠,游颖,孙兆增.猕猴B病毒囊膜蛋白gD基因真核细胞表达载体的构建及表达[J].中国比较医学杂志,2015,25(6):28~31.

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  • 最后修改日期:2015-05-07
  • 在线发布日期: 2015-06-30
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