基础医学与临床 ›› 2014, Vol. 34 ›› Issue (11): 1477-1481.

• 研究论文 • 上一篇    下一篇

Ano2是钙激活氯离子通道的分子基础

藏雨轩,方芳,朱杭飞,向国艳,张雲乔,李瑷彤,郝峰   

  1. 吉林医药学院
  • 收稿日期:2014-02-12 修回日期:2014-07-19 出版日期:2014-11-05 发布日期:2014-11-03
  • 通讯作者: 郝峰 E-mail:haof863@126.com
  • 基金资助:
    家族性高胆固醇血症相关功能突变的组学筛查及基因敲除小鼠模型的建立;吉林省教育厅“十二五”科学技术研究项目;吉林省大学生创新创业训练计划;吉林医药学院大学生科研项目

Ano2 is the molecular identity of calcium-activated chloride channel

  • Received:2014-02-12 Revised:2014-07-19 Online:2014-11-05 Published:2014-11-03

摘要: 目的 探讨Ano2是钙激活氯离子通道的分子基础。方法 用RT-PCR技术扩增Ano2编码基因,将Ano2连接到真核表达载体pEGFP-N3;通过脂质体介导将Ano2转染至FRT细胞,抗生素筛选获得稳定表达Ano2的细胞株;倒置荧光显微镜下观察Ano2在FRT细胞中的表达和分布,Western blot检测Ano2的表达;全细胞膜片钳技术研究Ano2的电生理学特性。结果 成功构建pEGFP-Ano2真核表达载体;Ano2表达在FRT细胞膜上;Ano2电流呈Ca2+、时间和电压依赖性,电流和电压关系呈外向整流。结论 Ano2是钙激活氯离子通道的分子基础。

关键词: 关键词:Ano2, FRT细胞, 转染, 钙激活氯离子通道

Abstract: Objective To investigate that Ano2 is the molecular identity of calcium-activated chloride channels. Methods The full length coding sequence of Ano2 was amplified by RT-PCR,Ano2 and eukaryotic expression vector pEGFP-N3 were ligated;Then recombinant plasmids were transfected into FRT cells using liposome,and the stable transfection FRT cells were selected with antibiotic; the expression and location of Ano2 was observed by the inverted fluorescence microscope and its expression was detected by western blot;the electrophysiological properties of Ano2 were researched by whole-cell patch-clamp technique. Results pEGFP-Ano2 was constructed successfully,FRT cell membrane expressed Ano2;The electrophysiological properties of Ano2 was Ca2+-、time- and voltage-dependent,and an outward-rectifying I/V relationship was observed. Conclusion Ano2 is the molecular identity of calcium-activated chloride channels.

Key words: Key words:Ano2, FRT cells, transfection, calcium-activated chloride channels

中图分类号: