摘要
将猪CRYAB基因cDNA连接到原核表达载体pRSET A中,构建重组表达质粒pRSET A-CRYAB,经酶切和测序鉴定后,转入表达宿主大肠杆菌BL21进行诱导表达,SDS-PAGE电泳分析表明,如期获得了重组蛋白的表达,其主要以包涵体的形式存在,且最佳条件为诱导温度25℃,时间15 h,IPTG浓度为0.2 mmol/L。
cDNA of CRYAB gene of swine was inserted into pRSET A prokaryotic expression vector.The recombinant plasmid named pRSET A-CRYAB was constructed,and secendly transformed into E.coli BL21(DE3) cells.SDS-PAGE analysis showed that pRSET A-CRYAB protein was successfully expressed existing in the inclusionbody form,and the optimum condition for the expression was 25℃,15 h,0.2 mmol/L IPTG.
出处
《广东农业科学》
CAS
CSCD
北大核心
2011年第16期127-130,共4页
Guangdong Agricultural Sciences
基金
广东省科技攻关项目(2010A020102003)
广东省生猪产业技术体系建设专项