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. 2023 Oct 6;14:1275228. doi: 10.3389/fpls.2023.1275228

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Copyright © 2023 Ruocco, Vavra, König-Beihammer, Bolaños−Martínez, Kallolimath, Maresch, Grünwald-Gruber and Strasser

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) and the copyright owner(s) 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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Glycoengineering results in RBD-215 variants with oligomannosidic or fucosylated complex N-glycans whose Tm and K_D values are not affected by changes in N-glycan structures. (A) MS spectra of RBD-215 + kif, Omicron BA.1 + kif, RBD-215 + FUT8, Omicron BA.1 + FUT8. A cartoon illustration (filled green circle, mannose; filled blue square, GlcNAc; red triangle, fucose) highlights the main N-glycan structures detected for each peptide (B) SPR analysis of ACE2-Fc binding to RBD-215 variants and (C) DSF curves and values (mean ± SD, n = 3) of RBD-215 + kif, Omicron BA.1 + kif, RBD-215 + FUT8, Omicron BA.1 + FUT8.