A reactive mass label for labelling a biological molecule for detection by mass spectrometry, which label comprises a reactive functionality for labelling thiol groups or carbonyl groups. Also provided is a reactive mass label for labelling a biological molecule for detection by mass spectrometry, wherein the mass label comprises the following structure: X-L-M-S-Re wherein X is a mass marker moiety, L is a cleavable linker, M is a mass normalization moiety, S is a mass series modifying group comprising the following group: Formula (I), wherein J is C=O, K is NH, and n is 2 or J and K are both CH2 and n is 1, and wherein m is at least 1; and Re is a reactive functionality for attaching the mass label to a biological molecule.
一种用于质谱检测
生物分子的反应性质量标记,该标记包括用于标记巯基或羰基的反应性官能团。还提供了一种用于质谱检测
生物分子的反应性质量标记,其中质量标记包括以下结构:X-L-M-S-Re,其中X是质量标记基团,L是可裂解的连接剂,M是质量归一化基团,S是质量系列修饰基团,包括以下基团:式(I),其中J是C=O,K是NH,n为2或J和K都是
CH2且n为1,m至少为1;Re是用于将质量标记附加到
生物分子的反应性官能团。