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口蹄疫病毒L基因真核表达载体的构建及表达
引用本文:刘萍,丛国正,杨孝朴,常惠芸. 口蹄疫病毒L基因真核表达载体的构建及表达[J]. 甘肃农业大学学报, 2007, 42(5): 1-4
作者姓名:刘萍  丛国正  杨孝朴  常惠芸
作者单位:1. 中国农业科学院兰州兽医研究所,甘肃,兰州,730046;甘肃农业大学动物医学院,甘肃,兰州,730070
2. 中国农业科学院兰州兽医研究所,甘肃,兰州,730046
3. 甘肃农业大学动物医学院,甘肃,兰州,730070
基金项目:国家重点基础研究发展计划(973计划)
摘    要:采用RT-PCR方法,从口蹄疫病毒中扩增出长约600 bp的核苷酸片段.纯化后与载体pMD18-Tsimple连接,重组质粒经PCR鉴定及DNA测序,结果表明克隆的片段为口蹄疫病毒L基因.将质粒pMD18-L与表达载体pEGFP-N1分别用BamHⅠ+XhoLⅠ双酶切,将所获目的基因与带有酶切位点的载体连接,经酶切、PCR鉴定及DNA测序,结果表明重组表达质粒pEGFP-L构建成功.将转染的BHK-21细胞,经荧光鉴定和RT-PCR检测,证实L基因在BHK-21细胞中得到表达.

关 键 词:口蹄疫病毒  L基因  真核表达
文章编号:1003-4315(2007)05-0001-04
修稿时间:2006-10-10

Construction of eukaryotic expressing vectors of L gene of foot-and-mouth disease virus
LIU Ping,CONG Guo-zheng,YANG Xiao-pu,CHANG Hui-yun. Construction of eukaryotic expressing vectors of L gene of foot-and-mouth disease virus[J]. Journal of Gansu Agricultural University, 2007, 42(5): 1-4
Authors:LIU Ping  CONG Guo-zheng  YANG Xiao-pu  CHANG Hui-yun
Affiliation:1. Lanzhou Veterinary Research Institute,Chinese Academy of Agricultural Sciences,Lanzhou 730046,China; 2. College of Veterinary Medicine,Gansu Agricultural University,Lanzhou 730070 ,China
Abstract:The L gene of foot-and-mouth disease virus was amplified by RT-PCR,the purified DNA fragment was inserted into pMD18-T vector,which contains complete L gene.The plasmid pMD18-L and the expression vector pEGFP-N1 was digested by BamH I XhoL I respectively,and the amplicon was cloned into pEGFP-N1 to construct recombinant expression plasmid.The recombinant plasmid was checked by restriction enzyme,PCR analysis and nucleic acid sequencing.Further BHK-21 cells were transfected with pEGFP-L.The expression proteins were analyzed by fluoroscopy and RT-PCR.The results showed that proteins of L was expressed in BHK-21 cells.
Keywords:FMDV  L gene  eukaryotic expression
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