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一个结构重新设计的内在无序,可以选择性地抑制植物转录因子在莉花酸信号传递中的作用

Yousuke Takaoka¹, Ruiqi Liu¹, Minoru Ueda^1,2

¹Department of Chemistry, Graduate School of Science, Tohoku University, 6-3, Aramaki-Aza Aoba, Aoba-ku, Sendai 980-8578, Japan.

|August 14, 2024

概括

研究人员开发了一种类抑制剂,可以选择性地向植物激素转录因子 (TFs),成功地解开了阿拉比多普西斯中的和乙烯信号通路,并证明了跨物种的潜力.

科学领域:

植物分子生物学植物分子生物学
植物激素信号传递器
化学生物学是化学生物学.

背景情况:

植物激素相关的转录因子 (TFs) 调节发育和应激反应.
TF家族表现出基因冗余性和激素通路之间的复杂交叉 (例如,莉花 (JA) 和乙烯 (ET)).
由于冗余和交叉通话,分析和控制这些TF具有挑战性.

研究的目的:

开发一种化学抑制剂来操纵与植物激素相关的TFs,特别针对JA和ET通路.
为了研究JAZ10^CMID的相互作用领域,这是参与TF脱敏的抑制剂.
创建用于剖析激素交叉通话机制的工具,而不需要基因操纵.

主要方法:

确定JAZ10^CMID作为一个本质上是无序的区域.
基于JAZ10^CMID相互作用域的设计抑制剂.
在*Arabidopsis thaliana*和*Marchantia polymorpha*中测试了抑制剂的选择性和有效性.

主要成果:

一种抑制剂选择性地抑制了MYC TFs,而EIN3/EIL1没有受到影响.
抑制剂破坏了MYC介导的反应,并激活了EIN3介导的反应,解了JA和ET信号.
该抑制剂选择性地向Marchantia polymorpha*中的MpMYC,显示了跨物种的适用性.

结论:

针对内在无序区域的抑制剂为操纵特定TF提供了一种新的策略.
这种方法有效地解开了JA和ET在植物中的交叉通话信号.
基于无序结构固定的化学工具为研究不同植物物种中的激素交叉提供了有价值的手段.

关键词:

化学生物学化学生物学本质上是无序的区域.莉花石路径的路径转录因子是一种转录因子.

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