6HJD
Cholera toxin classical B-pentamer in complex with Lewis-x
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 8.5 | 293.15 | 0.1 M Bicine-Tris, 8% PEG1000, 8% PEG3350, 8% MPD, 0.03 M calcium chloride, 0.03 M magnesium chloride |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.23 | 44.95 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 82.965 | α = 90 |
| b = 108.291 | β = 90 |
| c = 115.621 | 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 | 2016-02-21 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | ESRF BEAMLINE ID23-1 | 0.977021 | ESRF | ID23-1 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | Rrim I (All) | CC (Half) | 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 | 1.54 | 82.97 | 99.9 | 0.117 | 0.984 | 8.9 | 6.5 | 153937 | |||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Rrim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
| 1 | 1.54 | 1.57 | 99.5 | 0.907 | 0.535 | 1.7 | 6.4 | ||||||||||||
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 | 5ELB | 1.54 | 79.16 | 146128 | 7676 | 99.82 | 0.19411 | 0.19255 | 0.22355 | RANDOM | 18.474 | ||||||
| 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 | -1.17 | 1.27 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 38.01 |
| r_dihedral_angle_4_deg | 30.36 |
| r_dihedral_angle_1_deg | 15.589 |
| r_dihedral_angle_3_deg | 14.225 |
| r_long_range_B_refined | 3.638 |
| r_long_range_B_other | 3.638 |
| r_angle_refined_deg | 1.686 |
| r_scangle_other | 1.662 |
| r_mcangle_it | 1.205 |
| r_mcangle_other | 1.205 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 8140 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 668 |
| Heterogen Atoms | 419 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| PHENIX | refinement |
| Coot | model building |
| xia2 | data reduction |
| DIALS | data reduction |
| Aimless | data scaling |
| PHASER | phasing |
