1N6U

NMR structure of the interferon-binding ectodomain of the human interferon receptor

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated_NOESY	0.5mM IFNAR2-EC U-15N; 20mM d-Tris pH 8, 0.02% NaN3;	95% H2O/5% D2O	20mM Tris	8	ambient	308
2	HNHA	0.5mM IFNAR2-EC U-15N; 20mM d-Tris pH 8, 0.02% NaN3;	95% H2O/5% D2O	20mM Tris	8	ambient	308
3	HNCA	0.35mM IFNAR2-EC U-15N,13C; 20mM d-Tris pH 8, 0.02% NaN3;	95% H2O/5% D2O	20mM Tris	8	ambient	308
4	HNCACB	0.35mM IFNAR2-EC U-15N,13C; 20mM d-Tris pH 8, 0.02% NaN3;	95% H2O/5% D2O	20mM Tris	8	ambient	308
5	CBCACONH	0.35mM IFNAR2-EC U-15N,13C; 20mM d-Tris pH 8, 0.02% NaN3;	95% H2O/5% D2O	20mM Tris	8	ambient	308
6	3D_13C-separated_NOESY	0.35mM IFNAR2-EC U-15N,13C; 20mM d-Tris pH 8, 0.02% NaN3;	99% D2O	20mM Tris	8	ambient	305

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	800
2	Bruker	DMX	500

NMR Refinement
Method	Details	Software
distance geometry, simulated annealing	the structures are based on a total of 1947 inter-residual NOE-derived distance restraints (of which 1066 are long range), 172 dihedral angle restraints (88 experimental and 84 TALOS-derived), 138 distance restraints from hydrogen bonds, and 109 residual dipolar coupling restraints.	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	35
Conformers Submitted Total Number	22
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	Experiments all performed in Shigemi tubed equipped with inserts

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	XwinNMR	3.0	Neidig
2	structure solution	CNS	1.1	Brunger
3	data analysis	NMRPipe	2.1	Delaglio
4	refinement	CNS	1.1	Brunger

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.