8SXW
X-ray crystal structure of UDP- 2,3-diacetamido-2,3-dideoxy-glucuronic acid-2-epimerase from Thermus thermophilus strain HB27, D98N mutation, apo structure at pH 6
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 6 | 293 | 18-22% pentaerythritol propoxylate (5/4 PO/OH), 100 mM MES (pH 6) |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.49 | 50.58 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 64.327 | α = 108.23 |
| b = 85.34 | β = 110.06 |
| c = 86.535 | γ = 97.1 |
| Symmetry | |
|---|---|
| Space Group | P 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 | PIXEL | Bruker PHOTON II | 2023-03-09 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SEALED TUBE | BRUKER D8 QUEST | 1.5418 | ||
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 1.8 | 50 | 96.1 | 0.055 | 16.5 | 4.6 | 139158 | ||||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
| 1 | 1.8 | 1.9 | 89.3 | 0.35 | 2.7 | 2.4 | |||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | 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 | 1.8 | 41.72 | 132025 | 7133 | 94.12 | 0.18084 | 0.1785 | 0.22449 | RANDOM | 24.849 | |||||||
| 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] | |
| 0.01 | -0.01 | 0.01 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_3_deg | 15.768 |
| r_dihedral_angle_2_deg | 7.859 |
| r_long_range_B_refined | 6.953 |
| r_long_range_B_other | 6.866 |
| r_dihedral_angle_1_deg | 6.145 |
| r_scangle_other | 5.156 |
| r_mcangle_it | 3.478 |
| r_mcangle_other | 3.477 |
| r_scbond_it | 3.205 |
| r_scbond_other | 3.205 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 11343 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 1111 |
| Heterogen Atoms | 3 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| SAINT | data reduction |
| SADABS | data scaling |
| PHASER | phasing |
