CRYSTAL STRUCTURE OF ESCHERICHIA COLI URACIL DNA GLYCOSYLASE AND ITS COMPLEXES WITH URACIL AND GLYCEROL: STRUCTURE AND GLYCOSYLASE MECHANISM REVISITED
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 1UDG | PDB ENTRY 1UDG |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | 8.5 | PROTEIN CONCENTRATION 14.9 MG/ML, 0.2 M SODIUM ACETATE, 30% PEG4000, 0.1 M TRIS BUFFER, PH 8.5 USING HANGING DROP AT 293K. | ||
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.05 | 39.9 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 55.13 | α = 90 |
| b = 61.32 | β = 90 |
| c = 64.4 | 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 | AREA DETECTOR | BRUKER | 1997-08-15 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | ROTATING ANODE | BRUKER | |||
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 | 1.6 | 99 | 97.9 | 0.095 | 7.3 | 4.2 | 27664 | 1.5 | |||||||||||
| 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 | 1.6 | 1.7 | 97.9 | 0.28 | 3.1 | 2.9 | |||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (All) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free Selection Details | Mean Isotropic B | |||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R | PDB ENTRY 1UDG | 1.6 | 99 | 1 | 24809 | 1305 | 92.5 | 0.194 | 0.202 | 0.33 | 0.25 | EVERY 20TH REFLECTION | |||||
| 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] | |
| Coordinate Error | ||
|---|---|---|
| Structure Solution Method | Refinement High Resolution | Refinement Low Resolution |
| 2117 | ||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| s_similar_adp_cmpnt | 0.06 |
| s_non_zero_chiral_vol | 0.05 |
| s_zero_chiral_vol | 0.041 |
| s_from_restr_planes | 0.026 |
| s_angle_d | 0.024 |
| s_anti_bump_dis_restr | 0.012 |
| s_bond_d | 0.008 |
| s_similar_dist | |
| s_rigid_bond_adp_cmpnt | |
| s_approx_iso_adps | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1790 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 300 |
| Heterogen Atoms | |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| X-GEN | data scaling |
| X-GEN | data reduction |
| AMoRE | phasing |
| SHELXL-97 | refinement |














