›› 2011, Vol. 23 ›› Issue (5): 0-893.

• 动物科学 •    

兔支气管败血性波氏杆菌fimN基因的原核表达

章春桃1,2 ,刘燕2,韦强2,肖琛闻2,鲍国连2,*, 季权安2   

  1. 1浙江师范大学 化学与生命科学学院,浙江 金华 321004;2浙江省农业科学院 畜牧兽医研究所 浙江 杭州 310021
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-09-25 发布日期:2011-09-25

Prokaryotica expression of rabbit Bordetella bronchiseptica major fimbrial subunit gene fimN

ZHANG Chun-tao;LIU Yan;WEI Qiang;XIAO Chen-wen;BAO Guo-lian;*;JI Quan-an   

  1. 1College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China; 2Institute of Animal Husbandry and Veterinarian, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-09-25 Published:2011-09-25

摘要: 应用PCR方法扩增兔支气管波氏杆菌(Bb)的菌毛蛋白基因( fimN),将fimN基因克隆到表达载体pET-28a(+)中,获得重组质粒pET28a-fimN。将此重组质粒转化受体菌BL21后,用IPTG进行诱导表达,SDS-PAGE结果显示表达蛋白分子量大小约为27 kD,与理论预期值相符。用Western-blot试验分析纯化的表达产物,结果表明,该重组蛋白能与Bb阳性血清发生特异性反应。

关键词: 波氏杆菌, fimN, 表达, 纯化

Abstract: The full length of fimN from Bordetella bronchiseptica in rabbits was amplified with PCR, and it was cloned into pET-28a(+) vector (named pET28a-fimN). The recombinant plasmid was transformed into E. coli BL-21 cells and induced with IPTG.The results of SDS-PAGE showed that the molecular weight of the recombinant protein was about 27 kD. The result of Western blot showed that the recombination protein could be recognized by the specific antibody against Bb, indicating that the protein could be used as antigen.

Key words: Bordetella bronchiseptica, fimN, expression, purification