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基于液相色谱-串联质谱的糖肽片段分析

Liquid chromatography-tandem mass spectrometry-based fragmentation analysis of glycopeptides.

作者信息

Nilsson Jonas

机构信息

Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden.

出版信息

Glycoconj J. 2016 Jun;33(3):261-72. doi: 10.1007/s10719-016-9649-3. Epub 2016 Jan 18.

Abstract

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.

摘要

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。

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