A method for producing a site-specifically modified protein based on new carbon-carbon bond formation is disclosed, including the following three steps (marking, activation, and coupling steps): (a) marking of the modification site by incorporating a specific amino acid into a selected position of a target protein; (b) activation of the marked site; and (c) coupling of various post-translational modification (PTM) moieties or other chemical groups onto the activated site to obtain a site-specifically modified protein. The method for producing a site-specifically modified protein can incorporate desired diverse chemical groups including post-translational modification (PTM) moieties into a designated site in a target protein through a new carbon-carbon bond. Furthermore, the modified protein having a site-specific PTM exhibits the same chemical and functional properties as that of a target protein present in cells. Thus, the present invention is useful for studies of cellular proteins, human diseases including cancers and neurodegenerative diseases, and new drug discovery.
本发明公开了一种基于新碳-碳键形成的位点特异性修饰蛋白质的生产方法,包括以下三个步骤(标记、活化和耦合步骤):(a) 通过将特定
氨基酸加入目标蛋白质的选定位置来标记修饰位点;(b) 激活标记位点;(c) 将各种翻译后修饰(
PTM)分子或其他
化学基团偶联到激活位点上,以获得位点特异性修饰蛋白质。生产位点特异性修饰蛋白质的方法可以通过新的碳-碳键将所需的各种
化学基团(包括翻译后修饰(
PTM)分子)结合到目标蛋白质的指定位点上。此外,具有位点特异性
PTM 的修饰蛋白与细胞中的目标蛋白具有相同的
化学和功能特性。因此,本发明可用于研究细胞蛋白质、人类疾病(包括癌症和神经退行性疾病)以及新药研发。