Crystal structure of human PCAF bromodomain in complex with fragment BR004 (fragment 1)
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details | 
| experimental model | PDB | 3GG3 | pdb id 3GG3 | 
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details | 
| 1 | VAPOR DIFFUSION, SITTING DROP | 277.15 | 21-35% PEG 3350, 0.1 M Bis-Tris pH 5.5-7.0 or 21-40% medium-molecular-weight PEG smears (MMW PEG smears) buffered either with 0.1 M Bis-Tris pH 6.0-7.5 or 0.1 M Tris pH 7.5-8.8 | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content | 
| 3.52 | 65.09 | 
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) | 
| a = 99.67 | α = 90 | 
| b = 99.67 | β = 90 | 
| c = 100.4 | γ = 120 | 
| Symmetry | |
|---|---|
| Space Group | H 3 | 
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 100 | IMAGE PLATE | RIGAKU RAXIS IV | 2011-09-13 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline | 
| 1 | ROTATING ANODE | RIGAKU FR-E SUPERBRIGHT | 1.54178 | ||
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 | 2.22 | 33.47 | 100 | 0.092 | 11.2 | 4.4 | 18352 | 43.5 | |||||||||||
| 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 | 2.22 | 2.34 | 100 | 0.728 | 2 | 4.3 | |||||||||||||
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 | pdb id 3GG3 | 2.22 | 33.47 | 17400 | 940 | 99.91 | 0.20991 | 0.20831 | 0.21 | 0.24083 | 0.24 | RANDOM | 44.942 | ||||
| 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] | |
| -0.1 | -0.05 | -0.1 | 0.31 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation | 
| r_dihedral_angle_2_deg | 36.941 | 
| r_dihedral_angle_4_deg | 19.2 | 
| r_dihedral_angle_3_deg | 13.899 | 
| r_dihedral_angle_1_deg | 5.89 | 
| r_long_range_B_refined | 5.387 | 
| r_long_range_B_other | 5.387 | 
| r_scangle_other | 2.774 | 
| r_mcangle_it | 2.14 | 
| r_mcangle_other | 2.139 | 
| r_scbond_it | 1.647 | 
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number | 
| Protein Atoms | 1780 | 
| Nucleic Acid Atoms | |
| Solvent Atoms | 153 | 
| Heterogen Atoms | 28 | 
Software
| Software | |
|---|---|
| Software Name | Purpose | 
| REFMAC | refinement | 
| iMOSFLM | data reduction | 
| SCALA | data scaling | 
| PHASER | phasing | 














