2K9E

NMR Solution Structure for ShK-192: A Potent KV1.3-Specific Immunosuppressive Polypeptide

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	3.0 mM ShK-192	90% H2O/10% D2O	10	4.79	ambient	293
2	2D 1H-13C HSQC	3.0 mM ShK-192	90% H2O/10% D2O	10	4.79	ambient	293
3	2D 1H-1H TOCSY	3.0 mM ShK-192	90% H2O/10% D2O	10	4.79	ambient	293
4	2D 1H-1H TOCSY	3.0 mM ShK-192	100% D2O	10	4.1	ambient	278
5	2D 1H-13C HSQC	3.0 mM ShK-192	100% D2O	10	4.1	ambient	278
6	2D 1H-1H COSY	3.0 mM ShK-192	90% H2O/10% D2O	10	4.79	ambient	293
7	2D 1H-1H NOESY	3.0 mM ShK-192	90% H2O/10% D2O	10	4.79	ambient	293
8	2D 1H-1H NOESY	3.0 mM ShK-192	100% D2O	10	4.1	ambient	278

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	600
2	Bruker	AMX	500

NMR Refinement
Method	Details	Software
simulated annealing, molecular dynamics		X-PLOR NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	50
Conformers Submitted Total Number	20
Representative Model	1 (closest to the average)

Additional NMR Experimental Information
Details	THIS STRUCTURE WAS DETERMINED USING STANDARD 2D HOMONUCLEAR TECHNIQUES

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	chemical shift assignment	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
2	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.