Experiment: 2KKH

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	0.5 mM [U-99% 13C; U-99% 15N] protein-1, 50 mM potassium phosphate-2, 0.02 % sodium azide-3	95% H2O/5% D2O	50	7.3	ambient	298
2	3D HNCA	0.5 mM [U-99% 13C; U-99% 15N] protein-1, 50 mM potassium phosphate-2, 0.02 % sodium azide-3	95% H2O/5% D2O	50	7.3	ambient	298
3	3D HNCACB	0.5 mM [U-99% 13C; U-99% 15N] protein-1, 50 mM potassium phosphate-2, 0.02 % sodium azide-3	95% H2O/5% D2O	50	7.3	ambient	298
4	3D HCCH-TOCSY	0.5 mM [U-99% 13C; U-99% 15N] protein-1, 50 mM potassium phosphate-2, 0.02 % sodium azide-3	95% H2O/5% D2O	50	7.3	ambient	298
5	3D HN(CO)CA	0.5 mM [U-99% 13C; U-99% 15N] protein-1, 50 mM potassium phosphate-2, 0.02 % sodium azide-3	95% H2O/5% D2O	50	7.3	ambient	298
6	3D 1H-13C NOESY	0.5 mM [U-99% 13C; U-99% 15N] protein-1, 50 mM potassium phosphate-2, 0.02 % sodium azide-3	95% H2O/5% D2O	50	7.3	ambient	298
7	3D 1H-15N NOESY	0.5 mM [U-99% 13C; U-99% 15N] protein-1, 50 mM potassium phosphate-2, 0.02 % sodium azide-3	95% H2O/5% D2O	50	7.3	ambient	298
8	3D C(CO)NH	0.5 mM [U-99% 13C; U-99% 15N] protein-1, 50 mM potassium phosphate-2, 0.02 % sodium azide-3	95% H2O/5% D2O	50	7.3	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	500
2	Bruker	DRX	600
3	Bruker	AVANCE	800

NMR Refinement
Method	Details	Software
DGSA-distance geometry simulated annealing		TopSpin

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	256
Conformers Submitted Total Number	20
Representative Model	1 (closest to the average)

Additional NMR Experimental Information
Details	Heteronuclear spectra were recorded on spectrometers equipped with cryogenically cooled probes.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TopSpin	2.0	Bruker AG
2	processing	TopSpin	2.0	Bruker AG
3	chemical shift assignment	XEASY	3.13	Bartels et al.
4	structure solution	CYANA	2.1	Guntert, Mumenthaler and Wuthrich
5	refinement	X-PLOR NIH	22	Schwieters, Kuszewski, Tjandra and Clore

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.