遗传 ›› 2009, Vol. 31 ›› Issue (2): 123-130.doi: 10.3724/SP.J.1005.2009.00123

• 综述 • 上一篇    下一篇

植物GT元件和GT因子的研究进展

关秋玲1,陈焕新1,张毅2,李秋莉1   

  1. 1. 辽宁师范大学生命科学学院, 大连 116029;
    2. 辽宁省大连市育明高级中学, 大连 116023
  • 收稿日期:2008-07-14 修回日期:2008-10-13 出版日期:2009-02-10 发布日期:2009-02-10
  • 通讯作者: 李秋莉

Progresses on GT elements and GT factors in plants

GUAN Qiu-Ling1,CHEN Huan-Xin1,ZHANG Yi2,LI Qiu-Li1
  

  1. 1. College of Life Sciences, Liaoning Normal University, Dalian 116029, China;
    2. Dalian Yuming Senior High School, Dalian 116023, China
  • Received:2008-07-14 Revised:2008-10-13 Online:2009-02-10 Published:2009-02-10
  • Contact: GUAN Qiu-Ling Ling

摘要: GT元件是位于植物基因启动子区域中的串联重复DNA序列, 是启动子中富含T和A的顺式作用元件。迄今已经在不同植物中鉴定了一些GT元件并分析了其功能。GT因子是以三螺旋基序为DNA结合域, 与GT元件特异结合的一类转录因子。到目前为止, 仅在植物中发现有GT因子。GT因子与GT元件相互作用调节相关基因的转录, 进而提高植物的抗性或影响植物形态建成。文章就植物中不同的GT元件及GT因子的发现、结构及二者相互作用等方面进行了综述。

关键词: 转录调节, 三螺旋DNA结合域, GT元件, GT因子

Abstract: GT elements are DNA sequences occurred in tandem repeats in the promoter region of plant genes, which are rich in nucleotides T and A in promoters. A few GT elements and their functions have been characterized in different plants. Factors GT are transcription factors with trihelix motifs for DNA-binding domains and specific binding to GT elements. Presently, GT factors are only observed in plants. The interaction of GT factors and GT elements can regulate the transcrip-tion of related genes and improve resistance of plants or involve in plant morphogenesis. In this article, we summarized the discover, structure, and interaction of GT factors and GT elements.