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未经修改的策略启用了Catechol衍生物的蛋白质组范围的映射互动组

Zichun Qiao^1,2, Xiaozhe Zhang¹, He Wang^1,2

¹State Key Laboratory of Medical Proteomics, National Chromatographic R. & A. Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.

Analytical chemistry

|January 12, 2026

概括

这项研究引入了一种新的无修改方法 (OABA),用于绘制甲基醇化合物如何与活细胞中的蛋白质直接相互作用. 这种方法通过揭示原生蛋白相互作用而无需改变药物分子,从而促进了对多药理学的理解.

科学领域:

化学生物学化学生物学
药理学药理学是指药理学的学科.
蛋白质组学是指蛋白质组学.

背景情况:

了解甲基醇衍生物的药理学需要分析它们的蛋白相互作用.
目前用于目标识别的方法通常涉及连接物修饰或蛋白质扰动,限制了全面的互动组覆盖范围.

研究的目的:

开发一种无修改的策略,用于在原生细胞环境中绘制catechol-protein相互作用.
为了能够直接分析含有甲基醇的化合物的相互作用体.

主要方法:

开发了氧化添加-酸盐亲和度丰富 (OABA),一种可氧化还原技术.
利用了catechol氧化成ortho-quinones,用于共价蛋白捕获.
使用酸盐亲和力识别用于选择性丰富甲基醇蛋白添加物.

主要成果:

使用异二 (ISO) 证明了概念的证明,实现SOD1-补充的两倍丰富.
在活的HeLa细胞中鉴定出74个高可靠度的Quercetin相互作用体.
使用分子对接和CETSA与FDPS,CCT7和CS进行验证的相互作用.

结论:

OABA提供了一个可靠的,无修改的平台,用于绘制原生甲基醇蛋白相互作用体的地图.
这种方法促进了对多类药理学的理解.
促进生物系统中药物蛋白相互作用的直接映射.

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Protein Networks

Protein Networks

An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
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