Nonacid cleavable detergents applied to MALDI mass spectrometry profiling of whole cells
作者:Jeremy L. Norris、Matthew J. Hangauer、Ned A. Porter、Richard M. Caprioli
DOI:10.1002/jms.914
日期:2005.10
Although cleavable detergents were first synthesized a number of years ago, they have only recently been successfully applied to problems involving biological molecules. Recent reports have demonstrated that these compounds are useful for applications involving both 2D PAGE and mass spectrometry. However, most cleavable surfactants have utilized acid-labile functional groups to affect cleavage. In applications where extreme pH is required, acid cleavable detergents have limited usefulness. We report the synthesis of fluoride cleavable silane compounds and photolabile cinnamate esters as cleavable detergents having alternative cleavage chemistries than previously reported cleavable detergents. These compounds were applied to whole cell analysis using MALDI mass spectrometry, and it was demonstrated that their use results in an increase in the number of proteins analyzed by increasing protein solubility. Copyright © 2005 John Wiley & Sons, Ltd.
虽然可裂解洗涤剂数年前就已被首次合成,但它们直到最近才成功应用于涉及生物分子的问题。最近的报告显示,这些化合物在涉及二维聚丙烯酰胺凝胶电泳(2D PAGE)和质谱的应用中非常有用。然而,大多数可裂解表面活性剂都利用了酸敏感的功能团来实现裂解。在需要极端pH值的应用中,酸可裂解洗涤剂的实用性有限。我们报告了合成氟化物可裂解硅烷化合物和光敏肉桂酸酯作为具有不同于先前报告的可裂解洗涤剂裂解化学性质的裂解洗涤剂。这些化合物应用于使用基质辅助激光解吸电离(MALDI)质谱的整个细胞分析,并证明它们的使用通过增加蛋白质的溶解性从而增加了被分析的蛋白质数量。版权所有 © 2005 John Wiley & Sons, Ltd.