2BA3

NMR Structure of NikA N-terminal Fragment

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated_NOESY	2mM NIKA(1-51) U-15N, 13C; 50mM phosphate buffer NA; 50mM NaCL	H2O and D2O	50mM	6.8	ambient	298
2	3D_13C-separated_NOESY	2mM NIKA(1-51) U-15N, 13C; 50mM phosphate buffer NA; 50mM NaCL	H2O and D2O	50mM	6.8	ambient	298

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

NMR Refinement
Method	Details	Software
torsion angle dynamics	20 CYANA conformers with the lowest final target function values were subjected to restrained energy minimization in explicit solvent against the AMBER force field using the program OPALp	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 (closest to the average)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CYANA	2.2.1	Guntert et al.
2	refinement	OPALp	1.4	Koradi, R., Billeter, M., Guntert, P.

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.