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A single GalNAc residue on Threonine-106 modifies the dynamics and the structure of Interferon alpha-2a around the glycosylation site
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 3D HNCO 0.85 mM [U-100% 13C; U-100% 15N] Interferon Alpha-2a (O-glycosylated) 90% H2O/10% D2O 25 3.5 ambient 298.15 2 3D HNCA 0.85 mM [U-100% 13C; U-100% 15N] Interferon Alpha-2a (O-glycosylated) 90% H2O/10% D2O 25 3.5 ambient 298.15 3 3D HNCACB 0.85 mM [U-100% 13C; U-100% 15N] Interferon Alpha-2a (O-glycosylated) 90% H2O/10% D2O 25 3.5 ambient 298.15 4 3D CBCA(CO)NH 0.85 mM [U-100% 13C; U-100% 15N] Interferon Alpha-2a (O-glycosylated) 90% H2O/10% D2O 25 3.5 ambient 298.15 5 3D HBHA(CO)NH 0.85 mM [U-100% 13C; U-100% 15N] Interferon Alpha-2a (O-glycosylated) 90% H2O/10% D2O 25 3.5 ambient 298.15 6 3D HCCH-TOCSY 0.85 mM [U-100% 13C; U-100% 15N] Interferon Alpha-2a (O-glycosylated) 90% H2O/10% D2O 25 3.5 ambient 298.15 7 3D 1H-15N NOESY 0.85 mM [U-100% 13C; U-100% 15N] Interferon Alpha-2a (O-glycosylated) 90% H2O/10% D2O 25 3.5 ambient 298.15 8 3D 1H-13C NOESY aliphatic 0.87 mM [U-100% 13C; U-100% 15N] Interferon Alpha-2a (O-glycosylated) 100% D2O 25 3.5 ambient 298.15 9 3D 1H-13C NOESY aromatic 0.87 mM [U-100% 13C; U-100% 15N] Interferon Alpha-2a (O-glycosylated) 100% D2O 25 3.5 ambient 298.15 10 3D C(CO)NH 0.85 mM [U-100% 13C; U-100% 15N] Interferon Alpha-2a (O-glycosylated) 90% H2O/10% D2O 25 3.5 ambient 298.15 11 2D (hb)CB(cgcd)HD 0.87 mM [U-100% 13C; U-100% 15N] Interferon Alpha-2a (O-glycosylated) 100% D2O 25 3.5 ambient 298.15 12 2D (hb)CB(cgcdce)HE 0.87 mM [U-100% 13C; U-100% 15N] Interferon Alpha-2a (O-glycosylated) 100% D2O 25 3.5 ambient 298.15 13 4D (C13)HSQC-NOESY-(N15)HSQC 0.85 mM [U-100% 13C; U-100% 15N] Interferon Alpha-2a (O-glycosylated) 90% H2O/10% D2O 25 3.5 ambient 298.15 14 4D (C13)HSQC-NOESY-(C13)HSQC 0.87 mM [U-100% 13C; U-100% 15N] Interferon Alpha-2a (O-glycosylated) 100% D2O 25 3.5 ambient 298.15
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE 700 2 Bruker AVANCE III 600
NMR Refinement Method Details Software torsion angle dynamics CYANA
NMR Ensemble Information Conformer Selection Criteria structures with the least restraint violations Conformers Calculated Total Number 100 Conformers Submitted Total Number 20 Representative Model 1 (fewest violations)
Computation: NMR Software # Classification Version Software Name Author 1 structure solution CYANA 2.1 Guntert, Mumenthaler and Wuthrich 2 refinement CYANA Guntert, Mumenthaler and Wuthrich