4PNP
THE HIGH RESOLUTION CRYSTAL STRUCTURE OF BOVINE SPLEEN PURINE NUCLEOSIDE PHOSPHORYLASE IN COMPLEX FORMS WITH PHOSPHATE AND 9-DEAZAINOSINE
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | 8.1 | pH 8.1 | ||
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.07 | 40.7 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 92.72 | α = 90 |
| b = 92.72 | β = 90 |
| c = 92.72 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 21 3 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 108 | CCD | 1994-02-09 | M | ||||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | CHESS BEAMLINE A1 | CHESS | A1 | |
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 | 1.7 | 94 | 0.052 | 27991 | |||||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | 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 | 8 | 2 | 20032 | 972 | 81.1 | 0.222 | 0.222 | 0.248 | RANDOM | 24.8 | ||||||
| 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] | |
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| x_dihedral_angle_d | 24.73 |
| x_angle_deg | 1.429 |
| x_improper_angle_d | 1.303 |
| x_bond_d | 0.007 |
| x_bond_d_na | |
| x_bond_d_prot | |
| x_angle_d | |
| x_angle_d_na | |
| x_angle_d_prot | |
| x_angle_deg_na | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2214 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 65 |
| Heterogen Atoms | 5 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| X-PLOR | model building |
| X-PLOR | refinement |
| DENZO | data reduction |
| SCALEPACK | data scaling |
| X-PLOR | phasing |
