Crystal structure of dihydroorotase pyrC from Yersinia pestis in complex with zinc and malate at 2.4 A resolution
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 2EG6 | PDB entry 2EG6 |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 7 | 289 | 0.2 uL 10 mg/mL protein in 20 mM Tris-HCl pH 7.5, 150 mM sodium chloride, 10% glycerol, 0.1% sodium azide, 0.5 mM TCEP + 0.2 uL MCSG 2 condition #67 (0.15 M DL-malic acid, pH 7.0, 20% w/v PEG3350), equilibrated against 1.3 M sodium chloride solution in 96-well 3-drop crystallization plate (Swissci) |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.26 | 45.64 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 95.838 | α = 90 |
| b = 112.202 | β = 90 |
| c = 208.264 | 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 PILATUS3 X 6M | 2016-11-12 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | APS BEAMLINE 19-ID | 0.97923, 1.28241, 1.28908 | APS | 19-ID |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym I (Observed) | Rrim I (All) | Rpim I (All) | 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 | 2.4 | 50.01 | 93.8 | 0.088 | 0.088 | 0.096 | 0.037 | 7.5 | 6.1 | 81980 | -3 | 41.9 | |||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||
| 1 | 2.4 | 2.44 | 94.1 | 0.622 | 0.622 | 0.68 | 0.265 | 0.778 | 2.1 | 6 | |||||||||
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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | ||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB entry 2EG6 | 2.41 | 50.01 | 73934 | 3921 | 88.81 | 0.1613 | 0.1594 | 0.17 | 0.1979 | 0.2 | RANDOM | 44.305 | ||||
| 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] | |
| 0.11 | -0.14 | 0.04 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_sphericity_bonded | 46.284 |
| r_dihedral_angle_2_deg | 35.118 |
| r_dihedral_angle_4_deg | 15.444 |
| r_dihedral_angle_3_deg | 11.789 |
| r_dihedral_angle_1_deg | 5.432 |
| r_angle_refined_deg | 1.209 |
| r_angle_other_deg | 0.859 |
| r_chiral_restr | 0.068 |
| r_bond_refined_d | 0.009 |
| r_gen_planes_refined | 0.005 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 16072 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 1064 |
| Heterogen Atoms | 57 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| LAUEGEN | data processing |
| SCALEPACK | data scaling |
| HKL-3000 | data scaling |
| MOLREP | phasing |
| HKL-3000 | data reduction |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |














