氨酸酸化的奇美拉平台的开发和应用
Rajaiah Pergu1, Veronika M Shoba1, Santosh K Chaudhary1
1Chemical Biology and Therapeutics Science, Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, United States.
ACS central science
|August 28, 2023
概括
研究人员开发了新的化学小分子,称为PHICS,以诱导氨酸酸化,一种关键的蛋白质修饰. 这些分子提供了一种控制蛋白质功能和治疗癌症等疾病的新方法.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 药物发现 药物发现 药物发现
背景情况:
- 化学小分子提供了通过诱导后翻译修饰 (PTM) 来改变蛋白质功能的新方法.
- 现有的方法不能诱导氨酸酸化,这是一个关键的PTM,由于设计化学分子的局限性和非抑制酶结合剂的稀缺性.
- 目前的设计范式限制了大多数PTM诱导酶的招募.
研究的目的:
- 开发用于产生酸化诱导化学小分子 (PHICS) 的新平台,专门用于氨酸酸化.
- 克服现有的化学分子设计的局限性,以诱导氨酸酸化.
- 建立一个药理学PTM编辑的基础.
主要方法:
- 开发了两个平台,使用基于氨酸的组转移化学生成PHICS.
- 第1平台使用稀缺可用的非抑制性结合剂.
- 平台2利用大量可用的激酶抑制剂.
主要成果:
- 在各种蛋白质环境 (例如,膜相关,细胞结合) 中,PHICS成功诱导了对氨酸残留的酸化.
- 证明了生物活性,包括启动生长受体信号,并诱导耐药癌细胞的死亡.
- 验证了由非抑制性结合剂和激酶抑制剂生成的PHICS的疗效.
结论:
- 开发的PHICS平台可以诱导生物相关的氨酸酸化.
- 这项工作为药理学PTM编辑奠定了基础,包括引入和删除修改.
- 使用随时可用的酶抑制剂提供了一种多功能方法来扰乱蛋白质功能.
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