通过ATP竞争性抑制剂和ERK2中的Allosteric通讯来选择符合性
Jake W Anderson1, David Vaisar1, David N Jones2
1Department of Biochemistry, University of Colorado, Boulder, CO.
bioRxiv : the preprint server for biology
|September 25, 2023
概括
研究人员确定了14种新的细胞外信号调节激酶 (ERK) 抑制剂,可以稳定活性"R"形状. 这种形状选择影响远程区域,并为调节ERK基底相互作用提供了新的策略.
科学领域:
- 生物化学 生物化学
- 结构生物学 结构生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 细胞外信号调节激酶-2 (ERK2) 激活涉及动态形状变化之间的动态变化.
- 这就是为什么我会这样做.
- 和和和和和和和和.
- 在这个过程中,R是R.
- 美国,与美国的
- 在这个过程中,R是R.
- 与催化有关的状态.
- 像Vertex-11e这样的ATP竞争性抑制剂可以选择用于
- 在这个过程中,R是R.
- - 状态,影响激活循环和全结合的活性部位动态.
研究的目的:
- 为了识别具有R状态构成选择的新型ATP竞争性ERK抑制剂.
- 阐明促进R状态选择的抑制剂的结构和动态特征.
- 了解抑制剂对R状态选择如何影响ERK2.2的远端区域.
主要方法:
- 用-交换质谱 (HDX-MS) 和NMR放松分散测量来评估蛋白质动态和构造状态.
- 一组具有ATP竞争性的ERK抑制剂被选为R状态选择性质.
- 确定ERK2抑制剂复合物的晶体结构,以揭示分子相互作用.
主要成果:
- 确定了14种新的具有R状态选择的ATP竞争性ERK抑制剂.
- 抑制剂结合诱导的全效应传播到远端区域,包括P+1循环,环αF和环αL16.
- 晶体结构显示,R状态选择涉及Gly循环和环αC的变化,由Tyr-Tyr堆叠和Lys-Glu盐桥介导.
结论:
- 提出了R状态的模型,涉及N环运动,增强活性部位的紧性并改变激活循环的动态.
- 抑制剂的形状选择特性可以被利用来调节ERK基质和效应器的蛋白质对接接口.
- 这些发现为 ERK 抑制剂的合理设计提供了洞察力,这些抑制剂具有特定的结构偏好.
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