Ruchio Usui, Megumi Kabasawa, Naoya Tajima, Akito Taira, Mitsuaki Hirose, Kiichiro Totani
Chemistry Letters, 54(7) upaf120, Jun 24, 2025 Peer-reviewed
Abstract
The N-acetyl (NAc) group of N-acetyl glucosamine (GlcNAc) in the core structure of N-glycans is believed to stabilize their folded conformation. In this study, we synthesized Man3GlcNAc2, the common structural motif of N-glycan, bearing NAc groups and Man3Glc2 having no NAc group to understand the differences in their folded conformations due to the presence or absence of NAc group using 2D-NMR analysis. In Man3GlcNAc2, the branched α1-6Man was found to be positioned closer to the core sugar residue compared to Man3Glc2.