Facile Cu(<scp>ii</scp>)-mediated conjugation of thioesters and thioacids to peptides and proteins under mild conditions
作者:Yao Sun、Zhenbin Lyu、Zhiqiang Wang、Xiaodong Zeng、Hui Zhou、Fuchun Xu、Ziyang Chen、Yuling Xu、Ping Xu、Xuechuan Hong
DOI:10.1039/c8ob00536b
日期:——
such as polypeptides, peptide-based probes and proteins is a vibrant area in many scientific fields. However, reports on metal-mediated chemical methods towards native peptides especially non-engineering protein modification under mild conditions are still limited. Herein, we describe a novel Cu(II)-mediated strategy for the conjugation of thioesters/thioacids to peptides under mild conditions with high
肽衍生物(如多肽,基于肽的探针和蛋白质)的生物缀合是许多科学领域中一个生机勃勃的领域。然而,关于在天然条件下对天然肽尤其是非工程蛋白修饰的金属介导化学方法的报道仍然有限。在这里,我们描述了一种新型的铜(II)介导的策略,在温和的条件下具有高官能团耐受性的硫酯/硫代酸与肽的结合。基于这种策略,可以有效地构建多肽,甚至是基于肽的荧光探针。最后,可以实现用硫代酯选择性修饰天然Ub的赖氨酸残基,即使在等价的Cu(II)下也可以实现Ub的完全缀合。)。这些有希望的结果可以大大扩展Cu(II)介导的化学生物学和分子成像的反应策略。