4BQI
ARABIDOPSIS THALIANA cytosolic alpha-1,4-glucan phosphorylase (PHS2) in complex with maltotriose
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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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 | |
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Matthews coefficient | Solvent content |
2.26 | 45.6 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 83.713 | α = 90 |
b = 116.072 | β = 107.38 |
c = 94.342 | γ = 90 |
Symmetry | |
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Space Group | P 1 21 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
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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 | 2011-01-15 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | DIAMOND BEAMLINE I02 | Diamond | I02 |
Data Collection
Overall | |||||||||||||||||||
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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 | 1.9 | 65.81 | 98.2 | 0.06 | 12.9 | 4 | 132861 | 28.1 |
Highest Resolution Shell | |||||||||||||||||||
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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 | 1.9 | 2 | 88.8 | 0.56 | 2.2 | 3.4 |
Refinement
Statistics | |||||||||||||||||||
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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 | 1.9 | 52.48 | 126128 | 6643 | 98.19 | 0.19799 | 0.19576 | 0.24106 | RANDOM | 33.2 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
0.95 | -1.04 | -0.81 | -0.75 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 34.389 |
r_dihedral_angle_4_deg | 20.275 |
r_dihedral_angle_3_deg | 13.604 |
r_dihedral_angle_1_deg | 6.164 |
r_angle_refined_deg | 1.545 |
r_angle_other_deg | 1.155 |
r_chiral_restr | 0.093 |
r_bond_refined_d | 0.014 |
r_gen_planes_refined | 0.008 |
r_bond_other_d | 0.005 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 12957 |
Nucleic Acid Atoms | |
Solvent Atoms | 919 |
Heterogen Atoms | 111 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
XDS | data reduction |
SCALA | data scaling |
PHASER | phasing |