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Profiling of Permethylated Mucin O-glycans Using Matrix-assisted Laser Desorption/Ionization Time-of-flight Mass Spectrometry
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Glycomic work-flow for analysis of mucin O-linked oligosaccharides

Catherine A Hayes1, Szilard Nemes, Samah Issa

  • 1Medical Biochemistry, University of Gothenburg, Gothenburg, Sweden. catherine.hayes@medkem.gu.se

Methods in Molecular Biology (Clifton, N.J.)
|January 20, 2012
PubMed

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Oligosaccharide Assembly01:24

Oligosaccharide Assembly

Protein glycosylation starts in the ER lumen and continues in the Golgi apparatus. Glycosyltransferases catalyze the addition of sugar molecules or glycosylation of proteins. Usually, these enzymes add sugars to the hydroxyl groups of selected serine or threonine residues to form O-linked glycans or the amino groups of asparagine residues to form N-linked glycans. Different positions on the same polypeptide chain can contain differently linked glycans.
Multiple sugar molecules that may or may...