中国畜牧兽医

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贝氏柯克斯体外膜蛋白H(OmpH)原核表达载体的构建与鉴定

乔海燕12,贾广乐1,林祥梅1,张映2,廖娟红1   

  1. 1.中国检验检疫科学研究院,北京  1001212.山西农业大学,山西太谷  030801)

  • 收稿日期:2013-10-12 出版日期:2014-05-20 发布日期:2014-06-25
  • 通讯作者: 廖娟红(1985—),硕士。E-mail:liaojuanh@126.com
  • 作者简介:乔海燕(1985—),女,河南人,硕士,研究方向:生物化学与分子生物学。
  • 基金资助:

    中国检验检疫科学研究院基本科研业务费专项(2012JK012)。

Construction and Identification of Outer Membrance Protein H (OmpH) of Coxiella burnetii

QIAO Hai-yan1,2,JIA Guang-le1,LIN Xiang-mei1, ZHANG Ying2,LIAO Juan-hong1   

  1. 1.Chinese Academy of Inspection and Quarantine, Beijing 100121China2.Shanxi Agricultural UniversityTaigu 030801China

  • Received:2013-10-12 Online:2014-05-20 Published:2014-06-25

摘要: 本试验旨在构建贝氏柯克斯体外膜蛋白H(outer membrance protein H,OmpH)的重组表达载体并分析该蛋白的免疫原性,以贝氏柯克斯体九里株为模板,通过PCR方法扩增出含798 bp的贝氏柯克斯体的OmpH基因片段,并将其克隆至原核表达载体pQE-30,得到重组表达质粒pQE-30/OmpH。经IPTG诱导后,SDS-PAGE结果发现,该重组蛋白大小约为25 ku。Western blotting试验结果显示,该方法所诱导产生的重组蛋白具有良好反应原性。

关键词:

贝氏柯克斯体; 外膜蛋白HOmpH); 原核表达; 免疫原性

Abstract: This study was amied to construct and identify the prokaryotic expression plasmids of outer membrance protein H (OmpH) of Coxiella burnetii and analysis its immunogenicity. Amplified OmpH gene from the Nine Miles by PCR, the results showed that the OmpH included 798 bp. Cloned OmpH gene into prokaryotic expression vector pQE-30 after identified by PCR,enzyme digestion and sequence. Constructed the recombinant plasmid pQE-30/OmpH,and then the plasmid was transformed into BL21(DE3) competent cells and induced by IPTG. The results showed that pQE-30/OmpH recombinant proteins were 25 ku by SDS-PAGE, and Western blotting assay indicated that the recombinant protein could express OmpH protein with significant antigencity.

Key words:

Coxiella burnetii; outer membrance protein H OmpH); prokaryotic expression; immunogenicity