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. Author manuscript; available in PMC: 2024 Mar 11.
Published in final edited form as: Appl Magn Reson. 2023 Oct 9;55(1-3):317–333. doi: 10.1007/s00723-023-01624-w

Figure 1:

Figure 1:

Spin-labelling approach of cell surface sialoglycans via (A) MGE with precursors 1, 2 or 3 and (B) EGE-mediated incorporation of an azide-modified sialic acid (Neu5Ac9N3) residue via either α2,3- or α2,6-siayltransferase (ST) and then a copper-free click reaction (C) with DBCO-SL, 4, to install the nitroxide SL.