Crystal Structure of the second bromodomain of human Transcription initiation factor TFIID subunit 1 (TAF1)
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 3HMH | Ensemble of PDB entries 3HMH, 2GRC, 2OO1, 2OSS, 2OUO, 3DAI, 3D7C, 3DWY, 3G0L, 3GG3 |
| experimental model | PDB | 2GRC | Ensemble of PDB entries 3HMH, 2GRC, 2OO1, 2OSS, 2OUO, 3DAI, 3D7C, 3DWY, 3G0L, 3GG3 |
| experimental model | PDB | 2OO1 | Ensemble of PDB entries 3HMH, 2GRC, 2OO1, 2OSS, 2OUO, 3DAI, 3D7C, 3DWY, 3G0L, 3GG3 |
| experimental model | PDB | 2OSS | Ensemble of PDB entries 3HMH, 2GRC, 2OO1, 2OSS, 2OUO, 3DAI, 3D7C, 3DWY, 3G0L, 3GG3 |
| experimental model | PDB | 2OUO | Ensemble of PDB entries 3HMH, 2GRC, 2OO1, 2OSS, 2OUO, 3DAI, 3D7C, 3DWY, 3G0L, 3GG3 |
| experimental model | PDB | 3DAI | Ensemble of PDB entries 3HMH, 2GRC, 2OO1, 2OSS, 2OUO, 3DAI, 3D7C, 3DWY, 3G0L, 3GG3 |
| experimental model | PDB | 3D7C | Ensemble of PDB entries 3HMH, 2GRC, 2OO1, 2OSS, 2OUO, 3DAI, 3D7C, 3DWY, 3G0L, 3GG3 |
| experimental model | PDB | 3DWY | Ensemble of PDB entries 3HMH, 2GRC, 2OO1, 2OSS, 2OUO, 3DAI, 3D7C, 3DWY, 3G0L, 3GG3 |
| experimental model | PDB | 3G0L | Ensemble of PDB entries 3HMH, 2GRC, 2OO1, 2OSS, 2OUO, 3DAI, 3D7C, 3DWY, 3G0L, 3GG3 |
| experimental model | PDB | 3GG3 | Ensemble of PDB entries 3HMH, 2GRC, 2OO1, 2OSS, 2OUO, 3DAI, 3D7C, 3DWY, 3G0L, 3GG3 |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | 293 | 0.056M NaH2PO4 1.344M K2HPO4, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.79 | 55.98 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 57.45 | α = 90 |
| b = 57.8 | β = 90 |
| c = 123.57 | 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 | IMAGE PLATE | RIGAKU RAXIS IV | 2009-06-04 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | ROTATING ANODE | RIGAKU FR-E SUPERBRIGHT | 1.52 | ||
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym 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 | 1.89 | 28.96 | 99.2 | 0.074 | 0.074 | 14.4 | 4.7 | 33686 | 33417 | 28.4 | |||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
| 1 | 1.89 | 1.99 | 97.8 | 0.763 | 0.763 | 1 | 4.7 | 4734 | |||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | 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 PDB entries 3HMH, 2GRC, 2OO1, 2OSS, 2OUO, 3DAI, 3D7C, 3DWY, 3G0L, 3GG3 | 1.89 | 28.96 | 33666 | 33238 | 98.73 | 0.1924 | 0.1924 | 0.1906 | 0.21 | 0.25 | RANDOM | 28.982 | ||||
| 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] | |
| 0.68 | 0.12 | -0.8 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 44.662 |
| r_dihedral_angle_4_deg | 21.594 |
| r_dihedral_angle_3_deg | 12.505 |
| r_scangle_it | 8.363 |
| r_scbond_it | 6.803 |
| r_dihedral_angle_1_deg | 4.889 |
| r_mcangle_it | 4.413 |
| r_mcbond_it | 3.157 |
| r_angle_refined_deg | 1.356 |
| r_mcbond_other | 1.09 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2008 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 305 |
| Heterogen Atoms | 23 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| SCALA | data scaling |
| PHASER | phasing |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| CrystalClear | data collection |
| MOSFLM | data reduction |














