A Perfluoroaryl-Cysteine S<sub>N</sub>Ar Chemistry Approach to Unprotected Peptide Stapling
作者:Alexander M. Spokoyny、Yekui Zou、Jingjing J. Ling、Hongtao Yu、Yu-Shan Lin、Bradley L. Pentelute
DOI:10.1021/ja400119t
日期:2013.4.24
facile transformation between perfluoroaromatic molecules and a cysteine thiolate, which is arylated at room temperature. This new approach enabled us to selectively modify cysteineresidues in unprotected peptides, providing access to variants containing rigid perfluoroaromatic staples. This stapling modification performed on a peptide sequence designed to bind the C-terminal domain of an HIV-1 capsid
我们报告发现全氟芳香族分子和半胱氨酸硫醇盐之间容易发生转化,半胱氨酸硫醇盐在室温下芳基化。这种新方法使我们能够选择性地修饰未受保护的肽中的半胱氨酸残基,从而获得含有刚性全氟芳香族主链的变体。与未钉合的类似物相比,对设计用于结合 HIV-1 衣壳组装多蛋白 (C-CA) C 端结构域的肽序列进行的钉合修饰显示出结合、细胞通透性和蛋白水解稳定性特性的增强。重要的是,形成的订书钉的化学稳定性使我们能够在天然化学连接介导的能够结合人表皮生长因子2受体的小蛋白质亲和体的合成中使用该基序。