5AOS
Structure of a novel carbohydrate binding module from Ruminococcus flavefaciens FD-1 endoglucanase Cel5A solved at the As edge
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | 6.5 | 20 MG/ML PROTEIN IN.2 M SODIUM ACETATE, 0.1 M CACODYLIC ACID PH 6.5, 30%(W/V) POLYETHYLENE GLYCOL 8000. 30%(V/V) GLYCEROL ADDED TO THE CRYSTALLIZATION BUFFER AS CRYOPROTECTANT | ||
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 1.85 | 34 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 43.393 | α = 90 |
| b = 45.214 | β = 90 |
| c = 49.563 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 21 21 21 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 100 | PIXEL | DECTRIS PILATUS 6M | 2014-11-15 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SOLEIL BEAMLINE PROXIMA 1 | SOLEIL | PROXIMA 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 | 1.29 | 33.4 | 99.5 | 0.06 | 22.1 | 7 | 25196 | ||||||||||||
| 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 | 1.29 | 1.34 | 98.6 | 0.15 | 8.4 | 5.7 | |||||||||||||
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 | SAD | THROUGHOUT | NONE | 1.29 | 33.4 | 23770 | 1250 | 99.5 | 0.12655 | 0.12592 | 0.13829 | RANDOM | 12.248 | ||||||
| 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] | |
| 0.23 | 0.18 | -0.4 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 40.886 |
| r_sphericity_free | 24.251 |
| r_dihedral_angle_3_deg | 10.754 |
| r_dihedral_angle_4_deg | 8.942 |
| r_sphericity_bonded | 7.929 |
| r_dihedral_angle_1_deg | 7.599 |
| r_rigid_bond_restr | 3.169 |
| r_angle_refined_deg | 1.903 |
| r_mcangle_it | 1.635 |
| r_scbond_it | 1.631 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 786 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 98 |
| Heterogen Atoms | 29 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| XDS | data reduction |
| Aimless | data scaling |
| SHELX | phasing |
| PHASER | phasing |
| REFMAC | refinement |
