Crystal Structure of IcaR from Staphylococcus aureus, a member of the tetracycline repressor protein family
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION | 7 | 298 | PEG3350 20%, 0.2M NH4 Formate, pH 7, VAPOR DIFFUSION, temperature 298K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.36 | 47.94 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 113.922 | α = 90 |
| b = 121.141 | β = 90 |
| c = 61.686 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 21 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 | 110 | CCD | MARMOSAIC 300 mm CCD | 2008-12-05 | M | SINGLE WAVELENGTH | ||||||
| 2 | 1 | x-ray | 110 | CCD | MARMOSAIC 300 mm CCD | 2009-02-08 | M | SINGLE WAVELENGTH | ||||||
| 1,2 | 1 | |||||||||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | APS BEAMLINE 21-ID-D | 0.97624 | APS | 21-ID-D |
| 2 | SYNCHROTRON | APS BEAMLINE 21-ID-D | 0.990 | APS | 21-ID-D |
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 | 1.9 | 50 | 99.3 | 0.08 | 7.6 | 67790 | 67319 | 1.6 | 2.4 | ||||||||||
| 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 | 1.9 | 1.97 | 93.7 | 0.474 | 2.4 | 4.3 | 6284 | ||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | 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 | THROUGHOUT | 1.9 | 40.42 | 67790 | 67217 | 3392 | 98.81 | 0.184 | 0.182 | 0.183 | 0.228 | 0.2284 | RANDOM | 35.916 | |||||
| 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] | |
| 0.27 | 0.11 | -0.38 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 38.176 |
| r_dihedral_angle_4_deg | 25.252 |
| r_dihedral_angle_3_deg | 15.193 |
| r_scangle_it | 10.234 |
| r_scbond_it | 7.331 |
| r_dihedral_angle_1_deg | 5.258 |
| r_mcangle_it | 4.802 |
| r_mcbond_it | 3.339 |
| r_angle_refined_deg | 1.501 |
| r_nbtor_refined | 0.326 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 6280 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 431 |
| Heterogen Atoms | 36 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| BLU-MAX | data collection |
| HKL-2000 | data reduction |
| HKL-2000 | data scaling |
| SHARP | phasing |














