设为首页| 加入收藏
网站首页 本刊简介 编委会 投稿指南 过刊浏览 联系我们 下载专区
最新消息:
位置:首页 >> 期刊文章
C7orf69基因的克隆表达及生物信息学分析
作者:顾红岩 孟雪 李辉 郝晓花 李兴旺 魏红山 
单位:1.北京大学地坛医院教学医院 北京 100015 2.首都医科大学附属北京地坛医院 感染中心 北京 100015 3.首都医科大学附属北京地坛医院 传染病研究所 北京 100015 4.新发突发传染病研究北京市重点实验室 北京 100015 
关键词:C7orf69 基因 分泌蛋白 
分类号:
出版年,卷(期):页码:2013,5(4):16-21
摘要:

摘要:目的 体外克隆表达并纯化C7orf69重组蛋白,对C7orf69蛋白进行生物信息学分析。方法 PCR扩增C7orf69目的基因片段,构建原核表达载体,转化BL21,IPTG诱导目的蛋白表达,SDS-PAGE和Western blot鉴定,Ni-NTA纯化目的蛋白。结果 扩增获得序列完全正确的C7orf69基因片段(自然变异体),重组蛋白以包涵体的形式高效表达,在非变性条件下获得较高纯度的重组蛋白。生物信息学软件预测C7orf69蛋白(含信号肽)含有PKC、CK2磷酸化位点和N-十四烷基化位点。结论 成功的对分泌蛋白C7orf69进行了基因克隆、表达与初步纯化,为其进一步的功能研究奠定了坚实的基础。

Abstract: Objective To clone, express and purify recombinant protein C7orf69 in vitro, and to analyze its bioinformatics by prediction software. Methods Gene C7orf69 was amplified by polymerase chain reaction (PCR) and inserted into prokaryotic expression plasmid. Then the plasmid was transformed into E. coli BL21, induced by IPTG, identified by SDS-PAGE and Western blot, and purified under native or denaturing conditions by Ni-NTA resin. Results The right sequenced gene C7orf69 cotaining a natural variation was obtained, and the recombinant protein was highly expressed in the form of inclusion body. Purified recombinat protein was obtained under native conditions by Ni-NTA resin. The bioinformatics analysis by prediction software indicates that there are PKC and CK2 phosphorylation sites and a myristylation site in the protein C7orf69 including the signal peptide. Conclusions C7orf69 was successfully cloned, expressed and purified. These jobs lay solid foundation for the further study of its functions.

基金项目:
国家自然科学基金(No. 81071411;81271901);国家重大专项艾滋病和病毒性肝炎2012~2015年(2012ZX10005010)
作者简介:
参考文献:
服务与反馈:
文章下载】【加入收藏
 

地址:北京市朝阳区京顺东街8号
邮政编码:100015  电话:010-84322058  传真:010-84322059 Email:editordt@163.com