Crystal structure of the quinolinate phosphoribosyl transferase (BNA6) from Sachharomyces cerevisiae complexed with the inhibitor phthalate
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 298 | 20% PEG 3350, 0.2 M potassium formate, VAPOR DIFFUSION, HANGING DROP, temperature 298K | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.17 | 43.43 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 155.524 | α = 90 |
| b = 155.524 | β = 90 |
| c = 121.072 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | H 3 2 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | CCD | MARMOSAIC 325 mm CCD | 2005-08-05 | M | SINGLE WAVELENGTH | |||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SSRL BEAMLINE BL9-2 | 0.97946 | SSRL | BL9-2 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (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 | 2.4 | 46.932 | 100 | 0.099 | 0.099 | 6.4 | 10.9 | 22088 | 22088 | 1 | 1 | 50 | |||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
| 2.4 | 2.46 | 100 | 0.578 | 0.578 | 1.3 | 11 | 1622 | ||||||||||||
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 | MOLECULAR REPLACEMENT | THROUGHOUT | 2.4 | 46.93 | 21560 | 2189 | 97.62 | 0.188 | 0.183 | 0.22 | 0.225 | 0.25 | RANDOM | 50.701 | |||||
| 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] | |
| -1.28 | -0.64 | -1.28 | 1.92 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 40.526 |
| r_scangle_it | 25.389 |
| r_scbond_it | 24.872 |
| r_dihedral_angle_4_deg | 21.9 |
| r_dihedral_angle_3_deg | 18.412 |
| r_mcangle_it | 17.27 |
| r_mcbond_it | 15.399 |
| r_dihedral_angle_1_deg | 2.079 |
| r_angle_refined_deg | 1.937 |
| r_nbtor_refined | 0.34 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 4082 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 101 |
| Heterogen Atoms | 24 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| SCALA | data scaling |
| PHASER | phasing |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| Blu-Ice | data collection |
| MOSFLM | data reduction |














