1ILF

NMR STRUCTURE OF APO CBFB

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_13C-separated_NOESY	1.6mM CBFb U-15N, 13C	25mM phosphate buffer, 3mM DTT, 100 % D2O	150mM sodium chloride	6.6	1 atm	297
2	3D_15N-separated_NOESY	1.6mM CBFb U-15N	25mM phosphate buffer, 3mM DTT, 10 % D2O	150mM sodium chloride	6.6	1 atm	297
3	2D NOESY	0.8mM CBFb	25mM phosphate buffer,3mM DTT, 100 % D2O	150mM sodium chloride	6.6	1 atm	297

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	600
2	Varian	INOVA	800
3	Bruker	AVANCE	600

NMR Refinement
Method	Details	Software
simulated annealing and torsion angle dynamics	The structures are based on 2139 NOE-derived restraints, 215 dihedral angle restraints and 86 distance restraints from 43 hydrogen bonds	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	58
Conformers Submitted Total Number	25
Representative Model	4 (lowest energy)

Additional NMR Experimental Information
Details	The structure was determined using triple-resonance NMR spectroscopy

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	XwinNMR	2.5
2	processing	NMRPipe	1.8	Delaglio
3	processing	VNMR	5.3
4	data analysis	Ansig for Windows	1.0	Helgstrand
5	refinement	CNS	1.0	Brunger
6	refinement	MOLMOL	2K.1	Koradi

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 R01GM157729.