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何玲, 潘泽民, 谭晓华, 袁红琳, 刘仁海, 杨磊. 重组人类抗砷相关基因在大肠埃希菌的表达[J]. 中国公共卫生, 2004, 20(5): 540-541. DOI: 10.11847/zgggws2004-20-05-17
引用本文: 何玲, 潘泽民, 谭晓华, 袁红琳, 刘仁海, 杨磊. 重组人类抗砷相关基因在大肠埃希菌的表达[J]. 中国公共卫生, 2004, 20(5): 540-541. DOI: 10.11847/zgggws2004-20-05-17
HE Ling, PAN Ze-min, TAN Xiao-hua, . Expression of recombinant hARRG cDNA in E.coli and purification of hARRG protein[J]. Chinese Journal of Public Health, 2004, 20(5): 540-541. DOI: 10.11847/zgggws2004-20-05-17
Citation: HE Ling, PAN Ze-min, TAN Xiao-hua, . Expression of recombinant hARRG cDNA in E.coli and purification of hARRG protein[J]. Chinese Journal of Public Health, 2004, 20(5): 540-541. DOI: 10.11847/zgggws2004-20-05-17

重组人类抗砷相关基因在大肠埃希菌的表达

Expression of recombinant hARRG cDNA in E.coli and purification of hARRG protein

  • 摘要:
      目的   构建含重组人类抗砷相关基因(human arsenic resistence related gene, hARRG)的表达载体, 诱导其在转化菌表达, 分离纯化表达蛋白, 研究该蛋白质的理化性质、抗砷功能和免疫活性, 深入研究人类对砷化物的抵抗作用。
      方法   将hARRGcDNA开放阅读框亚克隆到原核表达载体Pet11C中, 用异丙基-β-D-硫代半乳糖苷(IPTG)诱导表达蛋白质, 利用阴离子交换柱Sepharose纯化蛋白质, SDS-PAGE胶电泳观察结果。
      结果   将hARRGcDNA成功亚克隆到原核表达载体Pet11C中, 并成功在大肠杆菌中表达, 表达的hARRG蛋白占菌体蛋白的5%左右, 该蛋白质被分离纯化。
      结论   原核表达载体Pet11C可以在大肠杆菌中表达hARRGcDNA, 可用阴离子交换柱Sepharose纯化抗砷相关蛋白质。

     

    Abstract:
      Objective   To construct expression vector of the recombinanthuman arsenic resistance related gene(hAR-RG), induce its expression in DE3 and isolate and purify expression product, for studying the physiochemistry characteristic, function and immune activity of the protein, and further researching the arsenic resistant effects of human.
      Methods   hARRG cDNA was subcloned into prokaryotic expression vector Pet11C. The recombinant protein expression was induced by IPTG, then, the protein was purified by anions Ion-exchange column Sepharose and examined by SDS-PA GE gel.
      Results   hARRGcDNA was successfully subcloned into prokaryotic expression vector Pet11C and expressed in E. coli and the protein was purified by anions Ion-exchange column successfully.
      Conclusion   Pet11C excpression vector containing hARRG cDNA wassuccessfully constructed, the cell DE3 transformed with expression vector capable of expression the gene and a hARRG protein could be purified by anions Ion-exchange column Sepharose.

     

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