Crystal structure of dTDP Sugar Isomerase (YP_390184.1) from DESULFOVIBRIO DESULFURICANS G20 at 1.95 A resolution
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 5 | 277 | 30.0000% PEG-6000, 0.1M Citrate pH 5.0, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.36 | 47.88 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 81.79 | α = 90 |
| b = 86.51 | β = 90 |
| c = 51.34 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | C 2 2 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 | CCD | MARMOSAIC 325 mm CCD | Flat collimating mirror, toroid focusing mirror | 2008-08-10 | M | MAD | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SSRL BEAMLINE BL9-2 | 0.91162,0.97911,0.97932 | SSRL | BL9-2 |
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 | 1.95 | 29.722 | 98.5 | 0.102 | 7.09 | 13593 | -3 | 17.509 | |||||||||||
| 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 | 1.95 | 2.02 | 96.9 | 0.497 | 1.7 | ||||||||||||||
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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | |||||
| X-RAY DIFFRACTION | MAD | THROUGHOUT | 1.95 | 29.722 | 13584 | 673 | 99.57 | 0.171 | 0.169 | 0.18 | 0.217 | 0.23 | RANDOM | 27.245 | |||||
| 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] | |
| 0.66 | -1.26 | 0.6 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 31.085 |
| r_dihedral_angle_4_deg | 12.499 |
| r_dihedral_angle_3_deg | 10.366 |
| r_scangle_it | 5.025 |
| r_dihedral_angle_1_deg | 3.84 |
| r_scbond_it | 3.374 |
| r_mcangle_it | 1.842 |
| r_angle_refined_deg | 1.721 |
| r_angle_other_deg | 1.413 |
| r_mcbond_it | 0.967 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1211 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 128 |
| Heterogen Atoms | 47 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| PHENIX | refinement |
| SOLVE | phasing |
| MolProbity | model building |
| XSCALE | data scaling |
| PDB_EXTRACT | data extraction |
| XDS | data reduction |














