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Plant Diversity ›› 2006, Vol. 01 ›› Issue (01): 69-77.

• 研究论文 • 上一篇    下一篇

转录调控因子WRKY 超级家族: 起源、结构和功能*

  

  1. 1 中国科学院西双版纳热带植物园昆明分部生物技术实验室, 云南昆明 650223; 2 中国科学院研究生院, 北京 100039
  • 出版日期:2006-02-25 发布日期:2014-01-14

Transcription Factor WRKY Superfamily: Origin, Structure and Function

  1. 1 Laboratory of Biotechnology , Kunming Secti on, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sci ences ,
    Kunming 650223, China; 2 Graduat e School of the Chinese Academy of Sciences, Beijing 100039, China
  • Online:2006-02-25 Published:2014-01-14

摘要:

WRKY 蛋白质是一个植物特有的超级转录调控因子家族, 在拟南芥和水稻基因组中分别拥有至少74 个和97 个成员。最古老的WRKY 转录调控因子拥有2 个高度保守的WRKY 结构域, 可能起源于15~ 20 亿年前的真核生物。虽然所有WRKY 蛋白质主要通过特异地结合靶基因启动子区域的W 盒序列而调控其表达, 但各家族成员基因的生物学功能存在着各自的特异性。本文详细总结了WRKY 蛋白质在调控植物发育和逆境诱导反应的信号转导途径建立等方面的分子生物学功能。

关键词: 转录调控因子, WRK Y 基因的起源, 信号转导, 分子生物学功能

Abstract:

The transcription factor WRKY protein superfamily so far is found exclusively in plants. There exist at least 74 and 97 members in Arabidopsis and rice, respectively. The most archaic WRKY transcription factors, which may originate some
115- 2 billion years ago in eukaryotes, contain two highly conserved WRKY domains. Although all WRKY proteins regulate mainly the expression of target genes by specifically binding to the ( T) TGACC ( APT) (W box) sequences of their promoter, the biological function of each member is specific. In this review, we summarize in detail the molecular biological function of WRKY proteins in regulating specific signaling pathways during development or in response to stress factors.

Key words: Transcription factor, Orig in of the WRK Y genes, Signal transduction, Molecular biological function

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