Crystal Structure of the first bromodomain of human BRD4 in complex with an acetylated SIRT7 peptide (K272ac/K275ac)
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 | 8.5 | 277 | 20.0 % PEG3350 10.0 % EtGly 0.1 M bis-tris-propane pH 8.5 0.2M NaOOCCH3 |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.12 | 41.88 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 42.393 | α = 90 |
| b = 59.376 | β = 90 |
| c = 106.017 | 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 | 2016-04-28 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | DIAMOND BEAMLINE I03 | 0.9763 | Diamond | I03 |
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 | 1.475 | 51.805 | 100 | 0.077 | 0.084 | 0.031 | 14.5 | 7.2 | 45984 | 45984 | |||||||||
| 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 | 1.48 | 1.55 | 100 | 0.955 | 0.955 | 1.031 | 0.385 | 0.8 | 7 | ||||||||||
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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | ||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | Ensemble of 2OSS, 2OUO, 2GRC, 2OO1, 3DAI, 3D7C, 3DWY | 1.48 | 51.8 | 43853 | 2061 | 99.97 | 0.1786 | 0.1771 | 0.18 | 0.2095 | 0.21 | RANDOM | 21.015 | ||||
| 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] | |
| 0.22 | 0.01 | -0.23 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 36.909 |
| r_dihedral_angle_4_deg | 22.081 |
| r_dihedral_angle_3_deg | 13.177 |
| r_dihedral_angle_1_deg | 5.771 |
| r_angle_refined_deg | 1.654 |
| r_angle_other_deg | 1.026 |
| r_chiral_restr | 0.109 |
| r_bond_refined_d | 0.015 |
| r_gen_planes_refined | 0.009 |
| r_bond_other_d | 0.002 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2162 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 245 |
| Heterogen Atoms | 12 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| SCALA | data scaling |
| PHASER | phasing |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| XDS | data reduction |














