申请人:PROMEGA CORP
公开号:WO2009048611A2
公开(公告)日:2009-04-16
The invention provides surfactant compounds of formulas I-IX, which can be used in methods for aiding the solubilization, digestion, preparation, analysis, and/or characterization of biological material, for example, proteins or cell membranes. The compounds can also aid in the recovery of peptides generated during protein digestion, particularly for in-gel digestion protocol. Additionally, the compounds can improve enzymatic protein deglycosylation without interfering with downstream sample preparation steps and mass spectrometric analysis. The compounds can be specifically useful as digestion aids that can be decomposed by an acid, by heat, or a combination thereof. Decomposition of the surfactants allows for facile separation from isolated samples, and/or allows for analysis of the sample without interfering with the sensitivity of various analytical techniques.
本发明提供了一种由式I-IV表示的化合物组合物,所述的表面活性剂化合物可在用于帮助溶解、消化、制备、分析和/或表征生物材料的方法中使用,例如蛋白质或细胞膜。所述化合物还可在肽恢复过程中提供帮助,所述肽在蛋白质消化过程中生成,特别是用于凝胶内消化方案。此外,所述化合物还能改善酶促蛋白质脱糖基化反应,而不会干扰后续的样品制备步骤和质谱分析。所述化合物作为消化辅助剂,可被酸、热或其组合分解,这特别有用。所述表面活性剂的分解使得很容易从分离的样品中分离出来,和/或允许在不干扰各种分析技术的灵敏度的情况下对样品进行分析。