6AFR

Crystal Structure of the first bromodomain of human BRD4 in complex with 5-((4-fluoro-1H-imidazol-1-yl)methyl)quinolin-8-ol

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.4	289.15	The protein was concentrated to 8-10 mg mL-1 in the buffer containing 20mM HEPES, pH7.4, 100mM NaCl and 1mM DTT. The apo crystals of BRD4_BD1 were harvested by using sitting drop vapor-diffusion method in 4M sodium formate and 15% glycerol at 289.15K. Then the apo crystals were soaked into reservoir solution containing 1mM compound for 7 days.

Crystal Properties
Matthews coefficient	Solvent content
1.97	37.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 31.98	α = 90
b = 47.208	β = 90
c = 78.737	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	80	CCD	Nonius Kappa CCD		2018-07-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRF BEAMLINE BL17U	0.9	SSRF	BL17U

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	1.998	39.37	99.82	12.44	12.6		8538

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	1.998	2.069

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	1.998	39.37	1.34	8533	416	99.84	0.2145	0.2116	0.2677

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	14.92
f_angle_d	0.911
f_chiral_restr	0.049
f_bond_d	0.007
f_plane_restr	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1047
Nucleic Acid Atoms
Solvent Atoms	68
Heterogen Atoms	18

Software

Software
Software Name	Purpose
PHENIX	refinement

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.