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. 2015 Oct 8;5:217. doi: 10.3389/fonc.2015.00217

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Copyright © 2015 Mihalache, Delplanque, Ringot-Destrez, Wavelet, Gosset, Nunes, Groux-Degroote, Léonard and Robbe-Masselot.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Structural characterization of human colorectal mucins O-glycans. MALDI-MS spectra, acquired in the positive ion mode [M + Na]⁺ (or [M + 2Na-H]⁺ for sulfated species), of human intestinal permethylated O-glycans from mucins purified from (A) healthy colon controls; (B) resection margins; (C) paired tumoral tissue. Monosaccharide symbols according to the Consortium for Functional Glycomics (CFG) nomenclature. Key: fucose (red triangle), GlcNAc (blue square), sialic acid (purple diamond), galactose (yellow circle), GalNAcol (yellow square), and sulfate residue (S).