2LMS

A single GalNAc residue on Threonine-106 modifies the dynamics and the structure of Interferon alpha-2a around the glycosylation site

SOLUTION NMR

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

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.