在癌细胞中,试烯胺和蛋白质相互作用的多层化学蛋白质地图
Evert Njomen1, Rachel E Hayward2, Kristen E DeMeester2
1Department of Chemistry, Scripps Research, La Jolla, CA, USA. enjomen@scripps.edu.
Nature chemistry
|August 13, 2024
概括
本研究介绍了一种基于蛋白质活动的蛋白质概况 (ABPP) 方法,使用立体探测器绘制人类蛋白质组结合性的地图. 这种方法补充了残留导向的ABPP,揭示了300多个蛋白质点,并破坏了癌细胞的线粒分裂.
科学领域:
- 化学生物学 化学生物学
- 蛋白质组学是指蛋白质组学.
- 分子瘤学分子瘤学
背景情况:
- 共价化学使人类蛋白质组的修改成为可能.
- 基于活动的蛋白质分析 (ABPP) 识别了由电友化合物修饰的残留物.
- 使用细胞中的残留导向ABPP充分评估蛋白质标存在局限性.
研究的目的:
- 用立体选择性电友化合物 (立体探测器) 评估一种辅助蛋白导向的ABPP方法.
- 整合蛋白质和氨酸定向数据,以进行全面的结合性映射.
- 识别立体探针的蛋白质标及其在癌细胞中的功能后果.
主要方法:
- 开发和应用基化,性电友化合物 (立体探测器).
- 整合蛋白导向和氨酸导向的ABPP数据.
- 用三氨酸烯胺立体探针治疗癌细胞.
主要成果:
- 立体导向的ABPP数据与氨酸导向的ABPP数据的相关性很好.
- 蛋白质大小和氨酸蛋白型性解释了ABPP平台中的差距.
- 确定了对300多种不同的蛋白质的立体试验结合,包括破坏MAD2L1BP相互作用.
结论:
- 蛋白导向的ABPP提供了对蛋白质组结合性的补充观点.
- 对MAD2L1BP相互作用的立体选择性干扰延迟了癌细胞中线粒细胞的退出.
- 这种方法促进了对电友化合物与细胞蛋白相互作用的理解.
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