2I8N

Solution structure of the second bromodomain of Brd4

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_13C-separated_NOESY	1.0mM 15N, 13C-labeled BRD4 C-terminal domain, 20mM phosphate buffer(pH6.0), 50mM NaCl, 5mM EDTA, 10%(v/v)D2O	90% H2O/10% D2O	20mM Na2HPO4, 50mM NaCl	6.0	1 atm	293
2	3D_15N-separated_NOESY	1.0mM 15N, 13C-labeled BRD4 C-terminal domain, 20mM phosphate buffer(pH6.0), 50mM NaCl, 5mM EDTA, 10%(v/v)D2O	90% H2O/10% D2O	20mM Na2HPO4, 50mM NaCl	6.0	1 atm	293
3	2D NOESY	1.0mM 15N, 13C-labeled BRD4 C-terminal domain, 20mM phosphate buffer(pH6.0), 50mM NaCl, 5mM EDTA, 10%(v/v)D2O	90% H2O/10% D2O	20mM Na2HPO4, 50mM NaCl	6.0	1 atm	293
4	2D TOCSY	1.0mM 15N, 13C-labeled BRD4 C-terminal domain, 20mM phosphate buffer(pH6.0), 50mM NaCl, 5mM EDTA, 10%(v/v)D2O	90% H2O/10% D2O	20mM Na2HPO4, 50mM NaCl	6.0	1 atm	293

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX	600

NMR Refinement
Method	Details	Software
Distance geometry simulated annealing molecular dynamics torsion angle dynamics	The NMR structures are based on a total of 1688 restraints, 1490 are NOE-derived distance constraints, 144 dihedral angle restrants, 54 distance restraints from hydrogen bonds.	NMRPipe

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (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	NMRPipe	2.3	F.Delaglio
2	data analysis	Sparky	3	T.D.Goddard and D.G.Kneller
3	structure solution	CNS	1.1
4	data analysis	CSI	1.0	David S.Wishart
5	data analysis	MOLMOL	2K.2	Koradi
6	refinement	CNS	1.1