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重组猪瘟病毒E2基因逆转录病毒载体的构建及其表达活性
引用本文:田宏,刘湘涛,林彤,吴锦艳,龚真莉,郑海学,代兴国,孙世琪,尚佑军,谢庆阁,张彦明.重组猪瘟病毒E2基因逆转录病毒载体的构建及其表达活性[J].中国兽医学报,2007,27(4):460-463.
作者姓名:田宏  刘湘涛  林彤  吴锦艳  龚真莉  郑海学  代兴国  孙世琪  尚佑军  谢庆阁  张彦明
作者单位:1. 中国农业科学院兰州兽医研究所家畜疫病病原生物学国家重点实验室农业部畜禽病毒学重点开放实验室,甘肃,兰州,730046;西北农林科技大学动物科技学院,陕西,杨凌,712100
2. 中国农业科学院兰州兽医研究所家畜疫病病原生物学国家重点实验室农业部畜禽病毒学重点开放实验室,甘肃,兰州,730046
3. 西北农林科技大学动物科技学院,陕西,杨凌,712100
基金项目:国家高技术研究发展计划(863计划)
摘    要:从实验感染兔脾组织中提取总RNA,应用RT—PCR得到了CSFVC-株结构蛋白E2基因,定向克隆于逆转录病毒载体pBABEpuro,经PCR、酶切和序列分析鉴定,获取阳性重组质粒。将该重组质粒与水疱性口炎病毒载pVSV—G共转染GP2—293细胞,收获假型病毒,并在Polybrene的介导下感染PK15细胞,嘌呤霉素筛选表达猪瘟E2基因的细胞株。通过细胞传代并结合PCR、免疫荧光及ELISA检测表明,所筛的细胞细胞系能稳定表达猪瘟E2基因,而且表达产物具有良好的生物学活性。

关 键 词:猪瘟C株E2基因  重组逆转录病毒载体  PK15细胞  基因表达
文章编号:1005-4545(2007)04-0460-04
修稿时间:2006-12-13

Retroviral vector mediated in vitro expression of classical swine fever virus E2 gene and stability analysis
TI AN-Hong,LIU Xiang-tao,LIN Tong,WU Jin-yan,GONG Zhen-li,ZHENG Hai-xue,DAI Xing-guo,SUN Shi-qi,SHANG You-jun,XIE Qing-ge,ZHANG Yan-ming.Retroviral vector mediated in vitro expression of classical swine fever virus E2 gene and stability analysis[J].Chinese Journal of Veterinary Science,2007,27(4):460-463.
Authors:TI AN-Hong  LIU Xiang-tao  LIN Tong  WU Jin-yan  GONG Zhen-li  ZHENG Hai-xue  DAI Xing-guo  SUN Shi-qi  SHANG You-jun  XIE Qing-ge  ZHANG Yan-ming
Institution:1. Key Laboratory of Animal Virology of Ministry of Agriculture, State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute of Chinese Academy of Agricultural Sciences, Lanzhou 730046, China ; 2. North-western Sci-tech University of Agriculture and Forestry, Yangling 712100 ,China
Abstract:CSFV E2 were amplified by RT-PCR using specific primers. The amplified fragment was cloned into pBABE puro vector for sequence analysis,and yield the recombinant plasmid pBABE puro-E2. Then cotransfected pBABE puro-E2 and pVSV-G into GP2-293 packaging cells by liposomes,and harvest the recombinant retrovirus, meanwhile infected PK15 cell by recombinant retroviruses under polybrene. Immunofluorescence,ELISA and PCR analysis showed that the foreign gene were integrated into the chromosome of transfected PK15 cells,and would be stably and highly expressed.
Keywords:CSFV E2 gene  retroviral vector  PK15 cell  gene expression
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