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. 2020 Oct 29;18(11):543. doi: 10.3390/md18110543

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Diversity of the N-glycans of the biantennary complex type (left frame) and high-mannose type (upper right frame), and O-glycans (lower right frame), identified in the S-glycoprotein forming the spikes at the surface of the SARS-CoV-2 envelope [26]. Symbols used to represent the N- and O-glycans: blue squares: N-acetylglucosamine (GlcNAc), green circles: mannose (Man), yellow circles: galactose (Gal), red triangle: fucose (Fuc), purple diamonds: sialic acid (Neu5Ac), yellow square: N-acetylgalactosamine (GalNAc).