2BWS
His243Ala Escherichia coli Aminopeptidase P
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 1WL9 | PDB ENTRY 1WL9 |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 8.2 | 277 | HANGING DROP VAPOUR DIFFUSION AT 4C. 2 UL 6 MG/ML APPRO PLUS 2 UL RESERVOIR SOLUTION: 28 % PEG 4K, 0.1 M TRIS PH 8.2. SOAKED IN RESERVOIR SOLUTION SUPPLEMENTED WITH 10% MPD AND 1 MM MNCL2 FOR 1 HR AT 4C PRIOR TO CRYOCOOLING. |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 4.4 | 71.8 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 177.147 | α = 90 |
| b = 177.147 | β = 90 |
| c = 96.438 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 64 2 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 | IMAGE PLATE | MARRESEARCH | OSMIC MIRRORS | 2005-06-08 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | ROTATING ANODE | RIGAKU RU200H | |||
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 | 1.75 | 76.7 | 97.3 | 0.06 | 17.4 | 5 | 86631 | 6 | 21.28 | ||||||||||
| 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 | 1.75 | 1.84 | 97.9 | 0.29 | 3.4 | 3.5 | |||||||||||||
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 | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 1WL9 | 1.75 | 60.08 | 83997 | 2632 | 96.8 | 0.15 | 0.15 | 0.165 | RANDOM | 21.82 | ||||||
| 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] | |
| -0.08 | -0.04 | -0.08 | 0.11 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 36.013 |
| r_dihedral_angle_4_deg | 13.591 |
| r_dihedral_angle_3_deg | 10.95 |
| r_sphericity_free | 6.609 |
| r_dihedral_angle_1_deg | 5.83 |
| r_scangle_it | 5.202 |
| r_scbond_it | 3.611 |
| r_mcangle_it | 2.043 |
| r_mcbond_it | 1.855 |
| r_angle_refined_deg | 1.16 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 3495 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 642 |
| Heterogen Atoms | 3 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| MOSFLM | data reduction |
| SCALEPACK | data scaling |
