4NUC

Crystal structure of the first bromodomain of human BRD4 in complex with MS435 inhibitor

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2OSS

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	294	30% PEG 4000, 0.1 M Tris HCl pH 8.5, 0.2 M Magnesium Chloride, VAPOR DIFFUSION, SITTING DROP, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
1.92	35.91

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 41.729	α = 90
b = 49.552	β = 90
c = 56.057	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	ADSC QUANTUM 270		2010-02-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X6A	1	NSLS	X6A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.4	14.92	98.6			23330	23015	2	2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.4	1.44	90.64

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2OSS	1.4	14.92	2	2	23015	21825	1190	98.65	0.13738	0.13483	0.18646	RANDOM	22.659

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
-0.26			0.54		-0.28

RMS Deviations
Key	Refinement Restraint Deviation
r_sphericity_free	39.793
r_dihedral_angle_2_deg	37.741
r_sphericity_bonded	13.448
r_dihedral_angle_4_deg	12.952
r_dihedral_angle_3_deg	10.352
r_rigid_bond_restr	5.499
r_dihedral_angle_1_deg	5.171
r_angle_refined_deg	1.662
r_angle_other_deg	0.964
r_chiral_restr	0.134

RMS Deviations
Key	Refinement Restraint Deviation
r_sphericity_free	39.793
r_dihedral_angle_2_deg	37.741
r_sphericity_bonded	13.448
r_dihedral_angle_4_deg	12.952
r_dihedral_angle_3_deg	10.352
r_rigid_bond_restr	5.499
r_dihedral_angle_1_deg	5.171
r_angle_refined_deg	1.662
r_angle_other_deg	0.964
r_chiral_restr	0.134
r_bond_refined_d	0.018
r_gen_planes_refined	0.01
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1052
Nucleic Acid Atoms
Solvent Atoms	160
Heterogen Atoms	31

Software

Software
Software Name	Purpose
HKL-2000	data collection
MOLREP	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

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.