6G0Q

Crystal Structure of the first bromodomain of human BRD4 in complex with an acetylated GATA1 peptide (K312ac/K315ac)

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2OSS	Ensemble of 2OSS, 2OUO, 2GRC, 2OO1, 3DAI, 3D7C, 3DWY
experimental model	PDB	2OUO	Ensemble of 2OSS, 2OUO, 2GRC, 2OO1, 3DAI, 3D7C, 3DWY
experimental model	PDB	2GRC	Ensemble of 2OSS, 2OUO, 2GRC, 2OO1, 3DAI, 3D7C, 3DWY
experimental model	PDB	2OO1	Ensemble of 2OSS, 2OUO, 2GRC, 2OO1, 3DAI, 3D7C, 3DWY
experimental model	PDB	3DAI	Ensemble of 2OSS, 2OUO, 2GRC, 2OO1, 3DAI, 3D7C, 3DWY
experimental model	PDB	3D7C	Ensemble of 2OSS, 2OUO, 2GRC, 2OO1, 3DAI, 3D7C, 3DWY
experimental model	PDB	3DWY	Ensemble of 2OSS, 2OUO, 2GRC, 2OO1, 3DAI, 3D7C, 3DWY

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8	277	30.0% PEG 1k 0.1M SPG pH 8.0

Crystal Properties
Matthews coefficient	Solvent content
2.21	44.24

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 39.284	α = 90
b = 43.855	β = 90
c = 82.344	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	PIXEL	DECTRIS PILATUS 6M-F		2016-04-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I02	0.9795	Diamond	I02

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim I (All)	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	43.855	98.4	0.071	0.078	0.03	24.4	6.4	28201	28201

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Rrim I (All)	Rpim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.4	1.48	97.3		0.063	0.063	0.069	0.027	9.5	6.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	Ensemble of 2OSS, 2OUO, 2GRC, 2OO1, 3DAI, 3D7C, 3DWY	1.4	41.17	26788	1384	97.97	0.1431	0.1413	0.1784	RANDOM	9.027

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]
0.11			0.04		-0.15

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.682
r_sphericity_free	21.087
r_dihedral_angle_4_deg	18.346
r_dihedral_angle_3_deg	12.502
r_sphericity_bonded	5.455
r_dihedral_angle_1_deg	5.27
r_rigid_bond_restr	2.65
r_angle_refined_deg	1.662
r_angle_other_deg	0.982
r_chiral_restr	0.105

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.682
r_sphericity_free	21.087
r_dihedral_angle_4_deg	18.346
r_dihedral_angle_3_deg	12.502
r_sphericity_bonded	5.455
r_dihedral_angle_1_deg	5.27
r_rigid_bond_restr	2.65
r_angle_refined_deg	1.662
r_angle_other_deg	0.982
r_chiral_restr	0.105
r_bond_refined_d	0.014
r_gen_planes_refined	0.011
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1131
Nucleic Acid Atoms
Solvent Atoms	234
Heterogen Atoms	4

Software

Software
Software Name	Purpose
SCALA	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	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 R01GM133198.