形成阿斯巴提尔化物残留的KAHA结合物作为合成手柄用于蛋白质修饰和净化
Claudia E Murar1, Frédéric Thuaud, Jeffrey W Bode
1Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH-Zürich , 8093 Zürich, Switzerland.
Journal of the American Chemical Society
|December 5, 2014
概括
化学选择性结合产生具有亚斯巴拉丁酸半化物 (Asa) 侧链的. 这使得精确的蛋白质修饰和净化能够使用生物对等反应进行先进的生物结合.
科学领域:
- 生物化学 生物化学
- 有机化学 有机化学
- 化学生物学 化学生物学
背景情况:
- 化物对于选择性和蛋白质修饰至关重要.
- 现有的引入阿尔代功能的方法可能很复杂.
研究的目的:
- 开发一种用于制备和蛋白质的新方法,使用酸半化 (Asa) 侧链.
- 为了使改造的和蛋白质能够高效地进行特定站点的功能化和净化.
主要方法:
- 利用阿尔法-基酸-氧胺 (KAHA) 与一个新的异佐利丁单体的结合.
- 通过固相合成将单体引入N端.
- 采用生物对等反应进行功能化和氧胺功能化树脂进行净化.
主要成果:
- 成功合成了和小蛋白质,在结合部位含有Asa残留物.
- 用各种标签 (生物素,染料,氧化物) 证明了葡萄糖甲基的特定位点修饰.
- 使用新型树脂系统实现了高回收性,单步净化改性和蛋白质.
结论:
- 开发的KAHA结合策略为含有ASA的和蛋白质提供了一个简单的途径.
- 这种方法可以实现多功能生物对角修饰和简化净化.
- 这种方法对生物结合和蛋白质工程应用具有重大潜力.
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