4HBV

Crystal Structure of the first bromodomain of human BRD4 in complex with a quinazolin ligand

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	6.5	277	0.2M NaNO3, 0.1M BTProp pH 6.5, 20% PEG3350, 10% EtGly, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.11	41.64

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 35.69	α = 90
b = 46.4	β = 90
c = 76.87	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	IMAGE PLATE	RIGAKU RAXIS IV		2011-12-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-E SUPERBRIGHT	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (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	1.63	32.37	96.6	0.066	0.066	12.4	3.9	16494	15933			20.8

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.63	1.72	85.7		0.354	0.354	2.2	2.7	1998

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2OSS	1.63	32.37	16527	15896	802	96.18	0.2064	0.2064	0.2047	0.2406	RANDOM	24.7949

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]
2.98			-1.41		-1.57

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.422
r_dihedral_angle_4_deg	21.944
r_dihedral_angle_3_deg	12.154
r_dihedral_angle_1_deg	6.022
r_angle_refined_deg	1.621
r_angle_other_deg	0.993
r_chiral_restr	0.091
r_bond_refined_d	0.016
r_gen_planes_refined	0.009
r_bond_other_d	0.003

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.422
r_dihedral_angle_4_deg	21.944
r_dihedral_angle_3_deg	12.154
r_dihedral_angle_1_deg	6.022
r_angle_refined_deg	1.621
r_angle_other_deg	0.993
r_chiral_restr	0.091
r_bond_refined_d	0.016
r_gen_planes_refined	0.009
r_bond_other_d	0.003
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1050
Nucleic Acid Atoms
Solvent Atoms	115
Heterogen Atoms	21

Software

Software
Software Name	Purpose
SCALA	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
CrystalClear	data collection
MOSFLM	data reduction

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.