Crystal Structure Analysis of the apo P19 protein from Campylobacter jejuni at 1.59 A at pH 9
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 9 | 298 | PROTEIN TREATED WITH 30X EXCESS OF EDTA; WASHED, PRECIPITANT WAS 25-45% POLYETHYLENE GLYCOL (PEG) 350, 0.1 M CHES (2-(N-CYCLOHEXYLAMINO) ETHANE SULFONIC ACID) BUFFER PH 9.0, CRYO FROZEN WITHOUT ANY ADDITION, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.11 | 41.77 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 54.396 | α = 90 |
| b = 73.037 | β = 90 |
| c = 74.817 | 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 | 100 | CCD | MARMOSAIC 325 mm CCD | Rh coated flat mirror, toroidal focusing mirror, Si 111 monochromator | 2007-05-21 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SSRL BEAMLINE BL9-2 | 1.282 | SSRL | BL9-2 |
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 | 1.59 | 19.11 | 98.9 | 0.037 | 16.6 | 3.7 | 40227 | -3 | -3 | 29.6 | |||||||||
| 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) | |||||||||||
| 1.59 | 1.68 | 98.6 | 0.655 | 2.2 | 3.7 | 5772 | |||||||||||||
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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | ||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | P6222 INCOMPLETE SEMAD MODEL AT 2.8 ANGS RESOLUTION. | 1.59 | 18.38 | 38270 | 1954 | 98.72 | 0.14366 | 0.14158 | 0.15 | 0.18413 | 0.19 | RANDOM | 23.712 | ||||
| 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] | |
| -0.69 | 1.22 | -0.53 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 36.544 |
| r_dihedral_angle_4_deg | 15.929 |
| r_dihedral_angle_3_deg | 13.413 |
| r_scangle_it | 8.175 |
| r_dihedral_angle_1_deg | 6.792 |
| r_scbond_it | 5.977 |
| r_mcangle_it | 3.851 |
| r_mcbond_it | 2.636 |
| r_rigid_bond_restr | 2 |
| r_angle_other_deg | 1.478 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2470 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 282 |
| Heterogen Atoms | 12 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| Blu-Ice | data collection |
| REFMAC | refinement |
| XDS | data reduction |
| XSCALE | data scaling |
| REFMAC | phasing |














