›› 2011, Vol. 38 ›› Issue (12): 67-70.

• 生物技术 • 上一篇    下一篇

猪繁殖与呼吸综合征病毒2b基因的克隆和原核表达

何斌1,2,3,4, 李勇1,2,3,4, 赵建增1, 高英杰1, 夏志平2, 王泽岩1, 刘雯1, 张宁1, 屈雪琪1, 白雪1, 梅林1, 马德慧3, 张社民4   

  1. 1. 吉林大学畜牧兽医学院,吉林长春 130062;2. 中国人民解放军军事医学科学院军事兽医研究所,吉林长春 130062;3. 内蒙古民族大学,内蒙古通辽 028042;4. 山西省芮城县家畜家禽疫病防治站,山西芮城 044600
  • 收稿日期:2011-04-19 修回日期:1900-01-01 出版日期:2011-12-20 发布日期:2011-12-20
  • 通讯作者: 高英杰

Cloning and Expression of 2b Protein Gene of Porcine Reproductive and Respiratory Syndrome Virus

HE Bin1,2,3,4, LI Yong1,2,3,4, ZHAO Jian-zeng1, GAO Ying-jie1, XIA Zhi-ping2, WANG Ze-yan1, LIU Wen1, ZHANG Ning1, QU Xue-qi1, BAI Xue1, MEI Lin1, MA De-hui3   

  1. 1. College of Animal Science and Veterinary Medicine,Jilin University,Changchun 130062,China;2. Military Veterinary Institute,Academy of Military Medicine Science of PLA,Changchun 130062,China;3. Inner Mongolia Uneversity for the Nationalities,Tongliao 028042,China;4. Veterinary Prevention and Treatment Station of Ruicheng,Shanxi Province,Ruicheng 044600,China
  • Received:2011-04-19 Revised:1900-01-01 Online:2011-12-20 Published:2011-12-20

摘要: 根据GenBank中猪繁殖与呼吸综合征病毒(PRRSV)美洲株2b基因序列,设计合成了1对特异性引物,经RT-PCR从PRRSV中扩增出222 bp的片段,并克隆至pMD18-T,连接到pGEX-4T-1表达载体,将阳性重组质粒pGEX-4T-2b转化到BL21(DE3),对诱导后的表达产物进行SDS-PAGE电泳和Western blotting分析,所得重组蛋白的分子质量大小为35 ku,与预期结果相同,且具有良好的免疫学活性。

关键词: 猪繁殖与呼吸综合征病毒; 2b蛋白; 克隆; 表达

Abstract: A pair of specific primers of porcine reproductive and respiratory syndrome virus (PRRSV) 2b were designed and synthesized according to the published gene sequence of PRRSV from GenBank,and 2b gene of PRRSV was obtained by RT-PCR method. The RT-PCR product was cloned into pMD18-T vector and sequenced. After the positive gene was cloned into the prokaryotic expression vector and designated pGEX-4T-2b,the recombinant plasmid was transformed into host cell BL21(DE3) and induced by IPTG. SDS-PAGE and Western blotting test confirmed that the expressed fusion protein is about 35 ku,which had immunogenically reactive activity.

Key words: porcine reproductive and respiratory syndrome virus; 2b protein; clone; expression

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