申请人:ELECTROPHORETICS LIMITED
公开号:US11360095B2
公开(公告)日:2022-06-14
The present invention relates to a set of two or more mass labels, wherein each mass label comprises the formula:
X-L-M-Re
wherein X is a reporter moiety having an exact mass, L is a bond cleavable by collision in a mass spectrometer, M is a mass modifier, and Re is a) a reactive functionality for attaching the mass label to an analyte or b) the analyte, wherein each mass label in the set has an integer mass, wherein each mass label in the set has the same integer mass, and wherein the set comprises two or more subsets of mass labels, each subset comprising one, two or more mass labels, and wherein, when the subset comprises two or more mass labels, the exact mass of the reporter moiety X of each mass label in the subset is different from the exact mass of the reporter moiety X of the mass labels in the same subset and in all other subsets, and wherein each mass label is distinguishable by mass spectrometry.
本发明涉及一组两个或两个以上的质量标签,其中每个质量标签都包含以下式子:
X-L-M-Re
其中 X 是具有精确质量的报告分子,L 是可在质谱仪中通过碰撞裂解的键,M 是质量修饰剂,Re 是 a) 用于将质量标签附着到被分析物上的反应官能团或 b) 被分析物,其中该组质量标签中的每个质量标签具有整数质量,其中该组质量标签中的每个质量标签具有相同的整数质量,其中该组质量标签包括两个或多个质量标签子集、每个子集包括一个、两个或多个质量标签,其中,当子集包括两个或多个质量标签时,子集中每个质量标签的报告分子 X 的确切质量不同于同一子集和所有其他子集中质量标签的报告分子 X 的确切质量,其中每个质量标签可通过质谱法区分。