6FFD

Human BRD4 C-terminal bromodomain with 1-(4-(3-methylbenzyl)-3,4-dihydroquinoxalin-1(2H)-yl)ethanone

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	293	0.1M morpheus buffer1, pH 6.5, 30% morpheus EDO_P8K, 0.12M Morpheus alchol mixture

Crystal Properties
Matthews coefficient	Solvent content
2.66	53.81

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 33.31	α = 90
b = 57.15	β = 90
c = 73.59	γ = 90

Symmetry
Space Group	P 2 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	PIXEL	DECTRIS PILATUS3 S 6M		2013-06-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.97296	ESRF	ID23-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	1.83	73.59	98.3	0.084	8.9	4.4		12692			31.1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.83	1.93	98.6		0.51	2.3	4.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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	FOURIER SYNTHESIS	THROUGHOUT	1.83	73.59	11721	599	95.11	0.18761	0.18458	0.25298	RANDOM	57.692

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]
-2.39			8.13		-5.74

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.899
r_dihedral_angle_4_deg	13.765
r_dihedral_angle_3_deg	12.035
r_long_range_B_other	8.138
r_long_range_B_refined	8.136
r_scangle_other	6.097
r_dihedral_angle_1_deg	4.658
r_mcangle_other	4.527
r_mcangle_it	4.52
r_scbond_it	3.837
r_scbond_other	3.834
r_mcbond_it	3.125
r_mcbond_other	3.122
r_angle_refined_deg	1.105
r_angle_other_deg	0.765
r_chiral_restr	0.058
r_bond_refined_d	0.008
r_gen_planes_refined	0.004
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	912
Nucleic Acid Atoms
Solvent Atoms	123
Heterogen Atoms	21

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling