Crystal structure of the DNA-binding domain of AdpA, the global transcriptional factor, in complex with a target DNA
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 7.1 | 277 | 0.1M sodium HEPES, 10%(v/v) 2-propanol, 16%(w/v) PEG4000, pH 7.1, VAPOR DIFFUSION, SITTING DROP, temperature 277K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 3.66 | 66.39 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 76.51 | α = 90 |
| b = 100.64 | β = 90 |
| c = 100.91 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | C 2 2 21 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 95 | CCD | ADSC QUANTUM 270 | diffraction | 2010-03-07 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | PHOTON FACTORY BEAMLINE AR-NE3A | 1.0000 | Photon Factory | AR-NE3A |
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 | 2.8 | 50 | 98.4 | 0.077 | 11.93 | 5.4 | 10045 | 9885 | 2 | 2 | |||||||||
| 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 | 2.8 | 2.87 | 98.4 | 0.077 | 11.93 | 5.4 | 10045 | ||||||||||||
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 (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 | 1D5Y, 1BL0 | 2.95 | 19.5 | 8057 | 8039 | 399 | 99.78 | 0.23787 | 0.236 | 0.23 | 0.2783 | 0.27 | RANDOM | 66.487 | |||
| 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 | 0.1 | |||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 33.588 |
| r_dihedral_angle_3_deg | 21.403 |
| r_dihedral_angle_4_deg | 20.724 |
| r_dihedral_angle_1_deg | 5.454 |
| r_scangle_it | 2.053 |
| r_scbond_it | 1.166 |
| r_angle_refined_deg | 0.881 |
| r_mcangle_it | 0.878 |
| r_mcbond_it | 0.443 |
| r_chiral_restr | 0.053 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 896 |
| Nucleic Acid Atoms | 650 |
| Solvent Atoms | 9 |
| Heterogen Atoms | |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| ADSC | data collection |
| XDS | data scaling |
| REFMAC | refinement |
| HKL-2000 | data reduction |














