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Carbohydrates on Proteins: Site-Specific Glycosylation Analysis by Mass Spectrometry

机译:蛋白质上的碳水化合物:质谱分析定点糖基化

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摘要

Glycosylation on proteins adds complexity and versatility to these biologically vital macromolecules. To unveil the structure-function relationship of glycoproteins, glycopeptide-centric analysis using mass spectrometry (MS) has become a method of choice because the glycan is preserved on the glycosylation site and site-specific glycosylation profiles of proteins can be readily determined. However, glycopeptide analysis is still challenging given that glycopeptides are usually low in abundance and relatively difficult to detect and the resulting data require expertise to analyze. Viewing the urgent need to address these challenges, emerging methods and techniques are being developed with the goal of analyzing glycopeptides in a sensitive, comprehensive, and high-throughput manner. In this review, we discuss recent advances in glycoprotein and glycopeptide analysis, with topics covering sample preparation, analytical separation, MS and tandem MS techniques, as well as data interpretation and automation.
机译:蛋白质上的糖基化为这些生物学上至关重要的大分子增加了复杂性和多功能性。为了揭示糖蛋白的结构-功能关系,使用质谱(MS)进行以糖肽为中心的分析已成为一种选择方法,因为聚糖保留在糖基化位点上,并且可以轻松确定蛋白质的位点特异性糖基化谱。但是,鉴于糖肽通常丰度低且相对难以检测,并且所得数据需要专业知识进行分析,因此糖肽分析仍具有挑战性。鉴于迫切需要解决这些挑战,正在开发新兴方法和技术,其目的是以灵敏,全面和高通量的方式分析糖肽。在本文中,我们讨论了糖蛋白和糖肽分析的最新进展,主题涉及样品制备,分析分离,质谱和串联质谱技术以及数据解释和自动化。

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