Structure of the P. aeruginosa LasR ligand-binding domain bound to its autoinducer
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | 7.3 | 20% W/V PEG 4000, 80 MM CALCIUM ACETATE, 40 MM HEPES PH 7.3, 5 MM DTT AND 50 MICROMOLAR N-3-OXO-DODECANOYL-HOMOSERINE LACTONE. | ||
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.22 | 44.6 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 53.82 | α = 90 |
| b = 85.33 | β = 95.82 |
| c = 75.51 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 1 21 1 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 100 | CCD | MARRESEARCH | MIRRORS | 2005-02-21 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | EMBL/DESY, HAMBURG BEAMLINE BW7A | EMBL/DESY, HAMBURG | BW7A | |
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 | 1.8 | 40 | 97.8 | 0.09 | 26.4 | 8.1 | 61495 | 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 | 1.8 | 1.9 | 96.9 | 0.58 | 3.1 | 7.5 | |||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | 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 Selection Details | Mean Isotropic B | ||||||
| X-RAY DIFFRACTION | SAD | THROUGHOUT | 1.8 | 40 | 58208 | 3112 | 97.5 | 0.211 | 0.209 | 0.2187 | 0.254 | RANDOM | 3.69 | ||||||
| Temperature Factor Modeling | ||||||
|---|---|---|---|---|---|---|
| Anisotropic B[1][1] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[3][3] | |||
| -0.63 | 0.23 | 0.32 | 0.35 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 37.256 |
| r_dihedral_angle_4_deg | 16.752 |
| r_dihedral_angle_3_deg | 15.158 |
| r_dihedral_angle_1_deg | 5.555 |
| r_scangle_it | 1.772 |
| r_scbond_it | 1.371 |
| r_angle_other_deg | 1.282 |
| r_angle_refined_deg | 1.098 |
| r_mcbond_it | 0.573 |
| r_mcangle_it | 0.562 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 5203 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 542 |
| Heterogen Atoms | 84 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| MOSFLM | data reduction |
| SCALA | data scaling |
| CNX | phasing |
