中国寄生虫学与寄生虫病杂志 ›› 1995, Vol. 13 ›› Issue (2): 94-98.

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人工合成恶性疟原虫复合基因在大肠杆菌中的表达及产物的初步鉴定

李全贞,李英杰,谢毅,任大明   

  1. 第一军医大学疟疾免疫研究室; 复旦大学遗传工程国家重点实验室
  • 出版日期:1995-05-31 发布日期:2017-01-05

EXPRESSION OF CHEMICALLY SYNTHESIZED HYBRID GENES OF PLASMODIUM FALCIPARUM AND PRELIMINARY CHARACTERIZATION OF EXPRESSED PRODUCTS

  • Online:1995-05-31 Published:2017-01-05

摘要: 将人工合成与构建的恶性疟原虫保护性抗原复合基因HGFC和HGFCAC分别与表达载体pWR450-1重组并转化大肠杆菌JM109,工程菌经IPTG诱导后表达出含外源基因产物与β-半乳糖苷酶部分氨基酸的融合蛋白,分子量分别为65kDa和77kDa。免疫印迹分析显示表达产物可与兔抗恶性疟原虫RESA多肽抗原的抗体发生特异性免疫反应,提示融合蛋白中含有恶性疟原虫抗原位点。

关键词: 恶性疟原虫, 复合基因, 融合蛋白, 免疫印迹, 大肠杆菌, 疟疾疫苗

Abstract: The chemically synthesized hybrid genes HGFC and HGFCAC were respectively recombinated with expression vector pWR450 1 and transferred into Escherichia coli .After adding IPTG to the cultural media,the bacteria harboring recombinant plasmid expressed the fusion proteins of exogenous gene products and partial amino acid of β galactosidase.The molecular weights of the two fusion proteins were 65 kDa and 77 kDa,respectively.The expressed fusion proteins could be recognized by antibodies of rabbit anti RESA peptide EENVEHDA by Western blotting,indicating that the fusion proteins harbored the antigenic epitopes of Plasmodium falciparum .

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