详细信息
文献类型:期刊文献
中文题名:凋亡素融合蛋白的基因克隆、表达与体外活性分析
英文题名:Cloning and Expression of TAT-apoptin and Its Activity Study in vitro
作者:赵健[1];高鹏[1];李素霞[1];袁勤生[1];刘建文[1]
机构:[1]华东理工大学生物反应器工程国家重点实验室,上海200237
年份:2009
卷号:35
期号:2
起止页码:202
中文期刊名:华东理工大学学报(自然科学版)
外文期刊名:Journal of East China University of Science and Technology
收录:CSTPCD;;Scopus;北大核心:【北大核心2008】;CSCD:【CSCD2011_2012】;
语种:中文
中文关键词:TAT-凋亡蛋白;高表达;纯化;MTT(四甲基偶氧唑盐)
外文关键词:TAT-apoptin; over-expression; purification; MTT (3-(4, 5-Dimethylthigal-2-yl)-2, 5- diphenyltetragalium bromide)
摘要:来源于HIV-1病毒(47-57位氨基酸)的TAT小肽具有跨膜功能,可以将外源蛋白进行跨膜转运。通过聚合酶链反应(PCR)的方法扩增了TAT-凋亡蛋白序列,与载体pET-28b连接后在大肠杆菌BL21(DE3)中获得了高表达,以包涵体形式表达的TAT-凋亡蛋白在变性条件下进行了Ni-NTA纯化,纯化的蛋白经MTT法证明具有诱导HeLa细胞凋亡的能力。
A basic peptide derived from human immunodeficiency virus HIV-1 TAT peptide (positions 47--57) can translocate through the cell membranes, the characteristics of which are utilized for the delivery of exogenous proteins into cells. The coding sequence for the TAT-apoptin was amplified by polymerase chain reaction(PCR), then inserted into pET28b vector and highly expressed in Escherichia coli BL21 (DE3). The protein expressed in inclusion body was purified by Ni-NTA under denaturing condition. Apoptosis activity of the TAT apoptin was evaluated by MTT. Results indicated that HeLa cells were highly sensitive to the purified TAT apoptin.
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