Structure of Transcriptional Regulatory Repressor Protein - EthR from Mycobacterium Tuberculosis in complex with compound 21 at 1.7A resolution
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 1T56 | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 298 | Ammonium sulphate, Glycerol, MES | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.47 | 50.25 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 121.41 | α = 90 |
| b = 121.41 | β = 90 |
| c = 33.89 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 41 21 2 |
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 | 2013-12-11 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | DIAMOND BEAMLINE I04 | 0.97943 | Diamond | I04 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | 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 | 1.7 | 85.85 | 100 | 0.051 | 0.015 | 1 | 28.4 | 12.6 | 28584 | ||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
| 1 | 1.7 | 1.74 | 99.9 | 0.815 | 0.236 | 0.884 | 3.9 | 12.6 | 2056 | ||||||||||
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 | 1T56 | 1.7 | 60.71 | 27091 | 1443 | 99.94 | 0.1959 | 0.194 | 0.19 | 0.2322 | 0.23 | RANDOM | 28.56 | ||||
| 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] | |
| 0.02 | 0.02 | -0.05 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 35.317 |
| r_dihedral_angle_4_deg | 19.685 |
| r_dihedral_angle_3_deg | 13.242 |
| r_dihedral_angle_1_deg | 4.812 |
| r_angle_refined_deg | 2.347 |
| r_chiral_restr | 0.176 |
| r_bond_refined_d | 0.024 |
| r_gen_planes_refined | 0.013 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1496 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 49 |
| Heterogen Atoms | 47 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| Aimless | data scaling |
| PHASER | phasing |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| xia2 | data reduction |
| PHASER | phasing |














