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. 2015 Oct 16;5(4):2758–2781. doi: 10.3390/biom5042758

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© 2015 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 license (http://creativecommons.org/licenses/by/4.0/).

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MALDI-TOF/TOF MS/MS spectra of the permethylated N-glycan at m/z 3055 [M + Na]⁺ in myoblasts from healthy control 1 (A), GFPT1 patient 1 (B), and the DOK7 patient (C). Assignments of the fragment ions are indicated on the cartoons and on the spectra the horizontal red arrows show antennae losses whilst antennae-derived fragment ions are annotated with their sequences. The number indicated above the peak in the spectra is the m/z value of the fragment ion (resulting ion) that has been detected by the mass spectrometry. GlcNAc, Man, Gal, Fuc, NeuAc.

MALDI-TOF/TOF MS/MS spectra of the permethylated N-glycan at m/z 3055 [M + Na]⁺ in myoblasts from healthy control 1 (A), GFPT1 patient 1 (B), and the DOK7 patient (C). Assignments of the fragment ions are indicated on the cartoons and on the spectra the horizontal red arrows show antennae losses whilst antennae-derived fragment ions are annotated with their sequences. The number indicated above the peak in the spectra is the m/z value of the fragment ion (resulting ion) that has been detected by the mass spectrometry. GlcNAc, Man, Gal, Fuc, NeuAc.