The invention relates to compositions and methods useful in the labeling and identification of proteins. The invention provides for highly soluble zwitterionic dye molecules where the dyes and associated side groups are non-titratable and maintain their net zwitterionic character over a broad pH range, e.g. between pH 3 and 12. These dye molecules find utility in a variety of applications, including use in the field of proteomics.
本发明涉及用于蛋白质标记和鉴定的有用的组合物和方法。本发明提供了一种高度可溶的两性离子
染料分子,其中
染料和相关侧链不具可滴定性,在广泛的pH范围内保持其净两性离子特性,例如在pH 3到12之间。这些
染料分子在多种应用中具有实用价值,包括在蛋白质组学领域的使用。