癌变·畸变·突变 ›› 2007, Vol. 19 ›› Issue (1): 8-010.doi: 10.3969/j.issn.1004-616x.2007.01.003

• 论著 • 上一篇    下一篇

重叠延伸PCR法构建UGRP1基因启动子的点突变表达载体

程 烽1,2;盛 燕2;施静艺2;陈 漪2;徐 潮2;刘 智2;梁 军2;潘春明2;朱忠勇1;宋怀东2   

  1. 1.南京军区福州总医院全军医学检验中心实验科,福州,350025;2.上海交通大学附属瑞金医院 人类基因组国家重点实验室上海血液学研究所,上海,200025
  • 收稿日期:2006-06-30 修回日期:2006-09-22 出版日期:2007-01-30 发布日期:2007-01-30

Overlap-extension PCR Based Site-directed Mutants of UGRP1 Gene Promoter

CHENG Feng1,2,SHENG Yan2, SHI Jing-yi2, CHEN yi2, XU Chao2, LIU Zhi2,LIANG Jun2, ZHU Zhong-yong1, SONG Huai-dong2   

  1. 1. PLA Center for Laboratory Medicine, Fuzhou General Hospital,Nanjin Military Command, Fuzhou 350025,Fujian China;2. State Key Lab for Medical Genomics,Shanghai Institute of Hematology, Ruijin Hospital, Shanghai Jiaotong University, Shanghai 200025
  • Received:2006-06-30 Revised:2006-09-22 Online:2007-01-30 Published:2007-01-30

摘要: 背景与目的: 构建UGRP1基因启动子的定点突变表达载体。材料与方法: 以插入UGRP1基因正常启动子的质粒pGL3-UGRP1(-112G) 为模板,用重叠延伸PCR定点诱变技术,对-112位点的碱基进行定点突变,并构建定点突变表达载体。 结果: DNA测序表明,UGRP1基因启动子-112处的碱基已由G突变为A,成功实现定点诱变。 结论: 重叠延伸PCR定点诱变技术高效、简便。pGL3-UGRP(-112A)的成功构建,为进一步研究-112G/A多态性对该基因转录活性的影响奠定了基础。

关键词: 子宫球蛋白相关蛋白1基因(UGRP1), 启动子, 重叠延伸PCR, 定点诱变

Abstract: BACKGROUND & AIM: To construct sited-directed mutants of human UGRP1 gene promoter. MATERIALS AND METHODS: Mutants were constructed by overlap extention method. The plasmid pGL3-UGRP1(-112G) was used as the template, site-directed mutagenesis was performed by overlap- extention PCR method at -112 in UGRP1 gene promoter,and the expression vector of mutant at -112 was then constructed. RESULTS: By DNA sequencing, human UGRP1 gene promoter was successfully changed from G to A at -112 bp and the expression vector with the site-directed mutants were constructed. CONCLUSION: Overlap-extension PCR method was convenient and efficient for site-directed mutagenesis. Contruction of desired mutant pGL3-UGRP1(-112A) may provide a basis for the research on regulating transcriptional activity of G/A polymorphism at -112 bp of human UGRP1 gene promoter.

Key words: human UGRP1 gene, promoter, overlap extention PCR, site-directed mutagenesis

中图分类号: