Cell surface glycoproteins represent important markers for the phenotyping of healthy and malignantly transformed cells. The mass spectrometry-based cell surface capturing (CSC) technology allows for extensive multiplexed identification and relative quantification of glycoproteins expressed on the cell surface at a given point in time. CSC technology is based on the mild oxidation of glycans from cell surface proteins on living cells. Oxidized glycans are tagged with a bifunctional linker molecule and glycopeptides are subsequently enriched by Affinity chromatography. Here, we describe a step-by-step protocol of the CSC technology, which not only enables the identification of cell surface glycoproteins, but also the concurrent determination of protein N-glycosylation sites. © Springer Science+Business Media, LLC 2013.
CITATION STYLE
Hofmann, A., Bausch-Fluck, D., & Wollscheid, B. (2013). CSC technology: Selective labeling of glycoproteins by mild oxidation to phenotype cells. Methods in Molecular Biology, 951, 33–43. https://doi.org/10.1007/978-1-62703-146-2_3
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