摘要
从携带有双拷贝乙肝病毒adw亚型全基因组的质粒pecob6获得X基因片段,将其亚克隆到AdEasy腺病毒系统的穿梭质粒pAdTrack-CMV上,和骨架质粒pAdEasy-1在BJ5183细菌内同源重组,获得重组腺病毒质粒pAd-X,PacI酶切线性化后脂质体法转染293细胞进行包装、扩增,获得重组腺病毒Ad-X,Ad-X可感染HepG2细胞,Western-blot法检测到X蛋白的表达,重组腺病毒Ad-X构建成功,为进一步研究X蛋白的生物学功能奠定了基础。
The HBV X gene was amplified by PCR according to the pecob6 containing the whole fragment of adw subtype of HBV, then the fragment was inserted into the multiple clone site of pAdTrack-CMV. The linearized shuttle plasmid was homogenously recombined with AdEasy-1 in BJ5183 and the recombinant adenoviral plasmid pAd-X was generated. Then plasmid pAd-X was digested with Pac I and transfected into 293 cells for packaging and amplifying. Infection titer and rate were monitored by green fluorescent protein （GFP） expression. With restriction endonuclease analysis and PCR methods, it has been confirmed that HBV X gene was cloned into the adenovirus vector successfully. The expression of X protein in HepG2 cells was detected by Western-blot. The recombined adenovirus Ad-X was constructed successfully, which would contribute to the advanced functional study of HBV X protein.
出处
《生物医学工程学杂志》
EI
CAS
CSCD
北大核心
2007年第6期1338-1342,共5页
Journal of Biomedical Engineering
基金
国家自然科学基金资助项目(30371273)
作者简介
通讯作者。E—mail：Chenguomin-2002@163．com
