Nilsson Jonas
Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden.
Glycoconj J. 2016 Jun;33(3):261-72. doi: 10.1007/s10719-016-9649-3. Epub 2016 Jan 18.
The use of liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS(n)) for the glycoproteomic characterization of glycopeptides is a growing field of research. The N- and O-glycosylated peptides (N- and O-glycopeptides) analyzed typically originate from protease-digested glycoproteins where many of them are expected to be biomedically important. Examples of LC-MS(2) and MS(3) fragmentation strategies used to pursue glycan structure, peptide identity and attachment-site identification analyses of glycopeptides are described in this review. MS(2) spectra, using the CID and HCD fragmentation techniques of a complex biantennary N-glycopeptide and a core 1 O-glycopeptide, representing two examples of commonly studied glycopeptide types, are presented. A few practical tips for accomplishing glycopeptide analysis using reversed-phase LC-MS(n) shotgun proteomics settings, together with references to the latest glycoproteomic studies, are presented.
使用液相色谱-电喷雾电离-串联质谱法(LC-ESI-MS(n))对糖肽进行糖蛋白质组学表征是一个不断发展的研究领域。所分析的N-糖基化和O-糖基化肽(N-糖肽和O-糖肽)通常源自蛋白酶消化的糖蛋白,其中许多预计具有重要的生物医学意义。本文综述了用于进行糖肽聚糖结构、肽段鉴定和连接位点鉴定分析的LC-MS(2)和MS(3)裂解策略。给出了使用CID和HCD裂解技术得到的一个复杂双天线N-糖肽和一个核心1 O-糖肽的MS(2)谱图,它们代表了两种常见研究类型的糖肽实例。还给出了一些在反相LC-MS(n)鸟枪法蛋白质组学设置下完成糖肽分析的实用技巧,以及对最新糖蛋白质组学研究的参考文献。