1JM7

Solution structure of the BRCA1/BARD1 RING-domain heterodimer

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated_NOESY	sample 1: 0.8-1.1mM U-15N,13C BRCA1; unlabeled BARD1, 25mM sodium phosphate, 0.2M NaCl, 2mM DTT. Sample 2: 0.8-1.1mM U-15N,13C BARD1; unlabeled BRCA1, 25mM sodium phosphate, 0.2M NaCl, 2mM DTT. Sample 3: 0.8-1.1mM U-15N,13C,85%-2H BRCA1; unlabeled BARD1, 25mM sodium phosphate, 0.2M NaCl, 2mM DTT. SAMPLE 4: 0.8-1.1mM U-15N,13C,85%-2H BARD1; unlabeled BRCA,1 25mM sodium phosphate, 0.2M NaCl, 2mM DTT.	90% H2O/10% D2O	0.2M NaCl	6.8	ambient	315
2	4D_13C-separated_NOESY	sample 1: 0.8-1.1mM U-15N,13C BRCA1; unlabeled BARD1, 25mM sodium phosphate, 0.2M NaCl, 2mM DTT. Sample 2: 0.8-1.1mM U-15N,13C BARD1; unlabeled BRCA1, 25mM sodium phosphate, 0.2M NaCl, 2mM DTT. Sample 3: 0.8-1.1mM U-15N,13C,85%-2H BRCA1; unlabeled BARD1, 25mM sodium phosphate, 0.2M NaCl, 2mM DTT. SAMPLE 4: 0.8-1.1mM U-15N,13C,85%-2H BARD1; unlabeled BRCA,1 25mM sodium phosphate, 0.2M NaCl, 2mM DTT.	90% H2O/10% D2O	0.2M NaCl	6.8	ambient	315
3	4D_13C-separated_NOESY	0.8-1.1mM U-15N,13C BARD1; unlabeled BRCA1 25mM sodium phosphate 0.2M NaCl 2mM DTT	90% H2O/10% D2O	0.2M NaCl	6.8	ambient	315
4	3D_15N/13C-separated_NOESY	0.8-1.1mM U-15N,13C BARD1; unlabeled BRCA1 25mM sodium phosphate 0.2M NaCl 2mM DTT	90% H2O/10% D2O	0.2M NaCl	6.8	ambient	315
5	3D_15N/13C-separated_NOESY	sample 1: 0.8-1.1mM U-15N,13C BRCA1; unlabeled BARD1, 25mM sodium phosphate, 0.2M NaCl, 2mM DTT. Sample 2: 0.8-1.1mM U-15N,13C BARD1; unlabeled BRCA1, 25mM sodium phosphate, 0.2M NaCl, 2mM DTT. Sample 3: 0.8-1.1mM U-15N,13C,85%-2H BRCA1; unlabeled BARD1, 25mM sodium phosphate, 0.2M NaCl, 2mM DTT. SAMPLE 4: 0.8-1.1mM U-15N,13C,85%-2H BARD1; unlabeled BRCA,1 25mM sodium phosphate, 0.2M NaCl, 2mM DTT.	90% H2O/10% D2O	0.2M NaCl	6.8	ambient	315

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX	500
2	Varian	INOVA	600
3	Varian	INOVA	800

NMR Refinement
Method	Details	Software
distance geometry simulated annealing	Structures are based on a total of 1664 restraints, 480 Intraresidue restraints, 475 Sequential restraints, 215 Medium-Range restraints, 256 Long-Range restraints, 82 Intermolecular restraints, 70 Hydrogen bond restraints, 16 Zinc restraints	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations, structures with the lowest energy
Conformers Calculated Total Number	25
Conformers Submitted Total Number	14
Representative Model	2 (closest to the average)

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

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	2.6
2	collection	VNMR
3	processing	NMRPipe		Delaglio, F.
4	data analysis	NMRView	5.0	Johnson, B.
5	structure solution	CNS	1.0	Brunger
6	refinement	CNS		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 R01GM157729.