4BQE
Arabidopsis thaliana Cytosolic Alpha-1,4-glucan Phosphorylase (PHS2)
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 8.25 | 293 | CRYSTALLISED FROM APPROXIMATELY 20% PEG3350, 100 MM AMMONIUM CITRATE PH 8.25, 10% GLYCEROL USING THE HANGING DROP VAPOUR DIFFUSION METHOD AT 20 DEG C. 1 MICROLITRE OF PROTEIN AT 10 MG PER ML IN 12.5 MM HEPES PH 7.5, 25 MM NACL WAS MIXED WITH 1 MICROLITRE OF THE WELL SOLUTION TO GIVE THE FINAL DROP |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.26 | 45.6 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 84.67 | α = 90 |
| b = 117.1 | β = 106.72 |
| c = 94.18 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 1 21 1 |
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 | ADSC QUANTUM 315 | 2010-08-02 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | DIAMOND BEAMLINE I03 | Diamond | I03 | |
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 | 1.7 | 49.11 | 98.9 | 0.08 | 11.8 | 4.2 | 190517 | 17.8 | |||||||||||
| 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 | 1.7 | 1.79 | 93.5 | 0.43 | 2.5 | 3.2 | |||||||||||||
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 | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 1GPB | 1.7 | 90.2 | 180900 | 9587 | 98.86 | 0.15427 | 0.15278 | 0.18274 | RANDOM | 19.2 | ||||||
| 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] | |
| 0.25 | 0.06 | 0.16 | -0.37 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 34.059 |
| r_dihedral_angle_4_deg | 20.519 |
| r_dihedral_angle_3_deg | 11.856 |
| r_dihedral_angle_1_deg | 5.748 |
| r_angle_refined_deg | 1.486 |
| r_angle_other_deg | 1.055 |
| r_chiral_restr | 0.09 |
| r_bond_refined_d | 0.013 |
| r_gen_planes_refined | 0.008 |
| r_bond_other_d | 0.004 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 13065 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 1844 |
| Heterogen Atoms | 79 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| MOSFLM | data reduction |
| SCALA | data scaling |
| PHASER | phasing |
