Crystal structure of a periplasmic domain of the EpsAB fusion protein of the Vibrio vulnificus type II secretion system
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 8 | 298 | 220 mM Calcium Chloride, 20% PEG3350, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.29 | 46.38 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 128.821 | α = 90 |
| b = 44.523 | β = 110.59 |
| c = 51.04 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | C 1 2 1 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 87 | CCD | RAYONIX MX-300 | 2012-01-28 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | CLSI BEAMLINE 08ID-1 | 0.9793 | CLSI | 08ID-1 |
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 | 1.55 | 50 | 93 | 0.056 | 3.5 | 35030 | 36885 | 1.4 | 2 | ||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
| 1 | 1.55 | 1.59 | 93.2 | ||||||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | 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 | SAD | THROUGHOUT | 1.55 | 47.78 | 36885 | 35030 | 1851 | 93.19 | 0.17615 | 0.1747 | 0.19 | 0.20223 | 0.21 | RANDOM | 27.642 | ||||
| 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] | |
| -0.03 | -0.02 | -0.01 | 0.02 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 37.732 |
| r_dihedral_angle_4_deg | 20.375 |
| r_dihedral_angle_3_deg | 16.519 |
| r_scangle_it | 6.61 |
| r_dihedral_angle_1_deg | 6.512 |
| r_scbond_it | 4.02 |
| r_mcangle_it | 2.472 |
| r_angle_refined_deg | 2.307 |
| r_mcbond_it | 1.41 |
| r_chiral_restr | 0.182 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1818 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 253 |
| Heterogen Atoms | |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| MsDC | data collection |
| PHENIX | model building |
| REFMAC | refinement |
| HKL-2000 | data reduction |
| HKL-2000 | data scaling |
| PHENIX | phasing |
