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. 2019 Jul 26;11(6):1053–1063. doi: 10.1080/19420862.2019.1630218

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© 2019 The Author(s). Published with license by Taylor & Francis Group, LLC.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way.

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Figure 2. — Relative quantitation of N-glycoforms of atacicept. (a) Released N-glycans were analyzed by MALDI-TOF-MS after linkage-specific sialic acid derivatization. Peak intensities were normalized based on the total intensities of all N-glycans in a sample. Sialic acids (purple diamond) pointing to the right indicate α2,3-linkage. (b) Tryptic N-glycopeptides were analyzed by C18-RP-LC-MS, and peak intensities were normalized on the total peak intensity of all N-glycopeptides in a sample. Standard deviations are shown.