5EI4
First domain of human bromodomain BRD4 in complex with inhibitor 8-(5-Amino-1H-[1,2,4]triazol-3-ylsulfanylmethyl)-3-(4-chlorobenzyl)-7-ethyl-3,7-dihydropurine-2,6-dione
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2OSS |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 8.5 | 292 | Ratio 1:1 (protein:precipitant). 12 mg/mL BRD4_BD1 protein. 2.5 mM inhibitor (in DMSO) final concentration. Protein buffer: 0.01M HEPES (pH 7.5), 0.15M NaCl. Precipitant agent : 0.3M Na Formate, 0.1M NaCl, 22% PEG3350, 10% ethylene glycol. Cryoprotectant : 10% ethylene glycol. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.14 | 42.44 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 37.353 | α = 90 |
b = 44.069 | β = 90 |
c = 78.272 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
Diffraction
Diffraction Experiment | ||||||||||||||
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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 | 2009-10-15 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ESRF BEAMLINE ID29 | 0.972390 | ESRF | ID29 |
Data Collection
Overall | |||||||||||||||||||
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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 | 1.05 | 50 | 99.5 | 0.074 | 11.16 | 5.05 | 60686 |
Highest Resolution Shell | |||||||||||||||||||
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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 | 1.05 | 1.11 | 98.6 | 0.481 | 0.432 | 4.65 |
Refinement
Statistics | |||||||||||||||||||
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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 | 2OSS | 1.05 | 39.14 | 57651 | 3035 | 99.53 | 0.17186 | 0.17082 | 0.19195 | RANDOM | 11.245 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
0.57 | -0.3 | -0.27 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 40.464 |
r_dihedral_angle_4_deg | 19.798 |
r_dihedral_angle_3_deg | 12.129 |
r_dihedral_angle_1_deg | 6.249 |
r_long_range_B_refined | 5.506 |
r_long_range_B_other | 5.504 |
r_scangle_other | 3.467 |
r_scbond_it | 2.418 |
r_angle_refined_deg | 2.417 |
r_scbond_other | 2.416 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1062 |
Nucleic Acid Atoms | |
Solvent Atoms | 164 |
Heterogen Atoms | 33 |
Software
Software | |
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Software Name | Purpose |
XDS | data reduction |
PHASER | phasing |
REFMAC | refinement |
XDS | data scaling |