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Mass-spectrometric identification and relative quantification of N-linked cell surface glycoproteins.

Wollscheid, Bernd and Bausch-Fluck, Damaris and Henderson, Christine and O'Brien, Robert and Bibel, Miriam and Schiess, Ralph and Aebersold, Ruedi and Watts, Julian D (2009) Mass-spectrometric identification and relative quantification of N-linked cell surface glycoproteins. Nature Biotechnology, 27 (4). pp. 378-386. ISSN 1546-1696

Abstract

Although the classification of cell types often relies on the identification of cell surface proteins as differentiation markers, flow cytometry requires suitable antibodies and currently permits detection of only up to a dozen differentiation markers in a single measurement. We use multiplexed mass-spectrometric identification of several hundred N-linked glycosylation sites specifically from cell surface-exposed glycoproteins to phenotype cells without antibodies in an unbiased fashion and without a priori knowledge. We apply our cell surface-capturing (CSC) technology, which covalently labels extracellular glycan moieties on live cells, to the detection and relative quantitative comparison of the cell surface N-glycoproteomes of T and B cells, as well as to monitor changes in the abundance of cell surface N-glycoprotein markers during T-cell activation and the controlled differentiation of embryonic stem cells into the neural lineage. A snapshot view of the cell surface N-glycoproteins will enable detection of panels of N-glycoproteins as potential differentiation markers that are currently not accessible by other means.

Item Type: Article
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Additional Information: author can archive post-print (ie final draft post-refereeing); Publisher's version/PDF cannot be used
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Date Deposited: 14 Dec 2009 13:47
Last Modified: 31 Jan 2013 00:49
URI: https://oak.novartis.com/id/eprint/1864

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