X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.7 | 288 | THE ENZYME WAS DIALYSED IN 30 MM NAK-PHOSPHATE BUFFER, PH=8.0. SINGLE CRYSTALS WERE GROWN AT 15C WITHIN A FEW WEEKS IN HANGING DROPS (10-15 ML EACH) INITIALLY CONTAINING 1.25 M NAK-PHOSPHATE (PH=8.0), 100 MM 3-PG, 25 MM MGCL2, 20 MM ADP, 10 MM DITHIOTHREITOL, 0.02% NAN3 AND 15 MG/ML PGK. RESERVOIR SOLUTIONS CONTAINED 2.4-2.75 M NAK-PHOSPHATE(PH=8.0)., pH 7.70 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.1 | 41 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 50.5 | α = 90 |
b = 105.2 | β = 98.4 |
c = 35.9 | 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 | IMAGE PLATE | MARRESEARCH | 1997-06-15 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SRS BEAMLINE PX7.2 | SRS | PX7.2 |
Data Collection
Overall | |||||||||||||||||||
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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 | 1.8 | 20 | 95.6 | 0.081 | 0.081 | 17 | 2.4 | 34292 | 21.8 |
Highest Resolution Shell | |||||||||||||||||||
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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) | ||||||||||
1 | 1.8 | 1.88 | 98.1 | 0.244 | 0.244 | 3 | 2.3 |
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 (Depositor) | R-Free (Depositor) | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | THE STARTING MODEL WAS CHOSEN AS THE STRUCTURE OF THE MNADP BINARY COMPLEX OF PIG MUSCLE PGK CRYSTALLISED IN THE PRESENCE OF AMMONIUM SULPHATE (MAY ET AL., PERSONAL COMM.). | 1.8 | 20 | 32755 | 1662 | 95.5 | 0.207 | 0.207 | 0.262 | RANDOM | 16.5 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
x_dihedral_angle_d | 24.7 |
x_improper_angle_d | 2.4 |
x_angle_deg | 1.62 |
x_bond_d | 0.011 |
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 | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3037 |
Nucleic Acid Atoms | |
Solvent Atoms | 208 |
Heterogen Atoms | 35 |
Software
Software | |
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Software Name | Purpose |
X-PLOR | refinement |
DENZO | data reduction |
SCALEPACK | data scaling |
X-PLOR | phasing |