Atomic-resolution crystal structure of Borrelia burgdorferi OspA via surface entropy reduction
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 1OSP | PDB ENTRY 1OSP, O chain |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 7.7 | 293 | 30% PEG400, 0.1M imidazole, pH 7.7, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.2 | 44.01 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 33.224 | α = 90 |
| b = 54.628 | β = 100.36 |
| c = 66.459 | 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 | ADSC QUANTUM 4 | 2005-08-25 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | APS BEAMLINE 17-ID | 1.0 | APS | 17-ID |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (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 | 1.15 | 20 | 99.8 | 0.071 | 0.071 | 17.76 | 2.9 | 82636 | 82636 | 1 | 1 | ||||||||
| 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) | |||||||||||
| 1.15 | 1.19 | 99.8 | 0.328 | 3.04 | 2.3 | ||||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | 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 | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 1OSP, O chain | 1.15 | 20 | 78535 | 78535 | 4113 | 99.63 | 0.15498 | 0.15364 | 0.16 | 0.17996 | 0.18 | RANDOM | 11.183 | |||
| 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] | |
| 0.1 | -0.04 | 1.01 | -1.12 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 37.958 |
| r_dihedral_angle_3_deg | 11.557 |
| r_dihedral_angle_4_deg | 6.095 |
| r_sphericity_free | 6.03 |
| r_dihedral_angle_1_deg | 5.901 |
| r_sphericity_bonded | 3.372 |
| r_scangle_it | 3.201 |
| r_mcangle_it | 2.623 |
| r_scbond_it | 2.376 |
| r_mcbond_it | 2.057 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1869 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 403 |
| Heterogen Atoms | 26 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| HKL-2000 | data reduction |
| SCALEPACK | data scaling |
| MOLREP | phasing |














