首页 | 本学科首页   官方微博 | 高级检索  
     

新型人白细胞介素—2(125—Ser)表达载体的构建和大肠杆菌中的表达
引用本文:杨欣,胡晓方,严君喜,曾献武. 新型人白细胞介素—2(125—Ser)表达载体的构建和大肠杆菌中的表达[J]. 预防医学情报杂志, 2001, 17(4): 227-228
作者姓名:杨欣  胡晓方  严君喜  曾献武
作者单位:四川省成都生物制品研究所,成都,610063
摘    要:目的:构建新型人白细胞介素-2(125-Ser)的表达载体,并在大肠杆菌中进行表达。方法:用PCR技术对天然人IL-2基因进行突变,并与表达载体pET-11b连接,转化入大肠杆菌BL21中,用IPTG诱导表达。结果:将编码天然人IL-2的125-Cys的密码子(TGT)变成了编码125-Ser的密码子(TCT),在大肠杆菌中表达量达27%。结论构建了表达新型人IL-2(125-Ser)的表达载体,并在大肠杆菌中获得高效表达,为后续的复性和纯化工作奠定了良好的基础。

关 键 词:人白细胞介素-2 表达载体 大肠杆菌 基因表达 聚合酶链反应
文章编号:1006-4028(2001)04-0227-02
修稿时间:2001-04-03

Construction Expression Vector of New-type Human Interleukin-2 (125-Ser) and Expression in E.coli
Yang Xin,Hu Xiao-Fang,Yan Jun-Xi,et al Cheugdu Institute of Biological Products,Chengdu ,China. Construction Expression Vector of New-type Human Interleukin-2 (125-Ser) and Expression in E.coli[J]. Journal of Preventive Medicine Information, 2001, 17(4): 227-228
Authors:Yang Xin  Hu Xiao-Fang  Yan Jun-Xi  et al Cheugdu Institute of Biological Products  Chengdu   China
Affiliation:Yang Xin,Hu Xiao-Fang,Yan Jun-Xi,et al Cheugdu Institute of Biological Products,Chengdu 610063,China
Abstract:Objective To construct a vector expressing new-type interleukin-2(125-Ser)and expression in E coli.Methods The natural IL-2 gene was mutagenized by PCR.The mutated IL-2 gene was inserted into expression vector pET-11b,then transformed to E.coli BL 21 strain.Results 125-Cys codon(TGT)of natural IL-2 was changed to 125-Ser codon(TCT).The expressing level of new-type IL-2 reached 27% of total bacterial protein.Conclusions An expression vector of new-type IL-2 was established.And high level expression of IL-2 was obtained in E.coli.The work laid good foundation for the following renaturation and purification.
Keywords:Human Interleukin-2  PCR  Mutation  Expression
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号