Crystal Structure of Beta-Lactamse Inhibitory Protein-I (BLIP-I) in Complex with TEM-1 Beta-Lactamase
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | hanging drop vapor batch | 294 | 10 mg/ml of each protein in 50 mM TrisCl, pH 8.0, 0.05 M NaCl mixed 1:1 with 0.2 M potassium phosphate, pH 4.7, 20% PEG 3350, hanging drop vapor batch, temperature 294K | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.49 | 50.57 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 45.418 | α = 103.24 |
| b = 48.757 | β = 91.29 |
| c = 106.137 | γ = 90.18 |
| Symmetry | |
|---|---|
| Space Group | P 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 | IMAGE PLATE | MAR scanner 345 mm plate | 2001-08-01 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | ALS BEAMLINE 8.2.1 | 1.0000 | ALS | 8.2.1 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 2.1 | 105.41 | 94.7 | 0.048 | 14.438 | 5.4 | 49303 | ||||||||||||
| 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) | ||||||||||
| 2.1 | 2.18 | 86.5 | 0.111 | 0.111 | 4.9 | ||||||||||||||
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 | THROUGHOUT | 2.1 | 25 | 46665 | 2508 | 95.01 | 0.1946 | 0.192 | 0.1849 | 0.234 | RANDOM | 26.319 | |||||||
| 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] | |
| -0.82 | -0.06 | 0.26 | 1.7 | -0.07 | -0.91 | |
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 37.54 |
| r_dihedral_angle_3_deg | 16.132 |
| r_dihedral_angle_4_deg | 14.506 |
| r_dihedral_angle_1_deg | 6.44 |
| r_scangle_it | 4.605 |
| r_scbond_it | 3.061 |
| r_angle_refined_deg | 1.97 |
| r_mcangle_it | 1.881 |
| r_mcbond_it | 1.118 |
| r_nbtor_refined | 0.301 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 6469 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 372 |
| Heterogen Atoms | 20 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| DENZO | data reduction |
| SCALEPACK | data scaling |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| MAR345dtb | data collection |
| PHASER | phasing |
