6V2L
E. coli Phosphoenolpyruvate carboxykinase S250A
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1AYL |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | MICROBATCH | 293 | A 2ul drop with 3 mg/ml S250A PCK, 5 mM Manganese chloride, 5mM Magnesium chloride, 2 mM ATP, 2mM Pyruvate, 1 mM EDTA, 200 mM Ammonium acetate, 100 mM Sodium acetate pH 4.8, 0.01 mM DTT, 12% PEG 4000 was added to 2 ul drop containing 0.01 mM Nickel chloride, 0.1 M Tris pH 8.5, 20% PEG 2000. After a week a rod like crystal was removed and soaked in a solution with 30% glycerol 1mM EDTA, 100 mM sodium acetate 200mM ammonium acetate and 12% PEG 4000 for 10 seconds and flash cooled in liquid notrogen |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.32 | 46.87 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 124.91 | α = 90 |
b = 94.62 | β = 96.21 |
c = 46.35 | γ = 90 |
Symmetry | |
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Space Group | C 1 2 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 | 105 | CCD | RAYONIX MX300HE | 2014-10-09 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | CLSI BEAMLINE 08B1-1 | 0.8856 | CLSI | 08B1-1 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | 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 | 40.5 | 99.59 | 0.1803 | 0.2092 | 0.1056 | 0.992 | 9.63 | 3.8 | 58603 | 16.05 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
1 | 1.7 | 1.761 | 1.237 | 0.7255 | 0.491 | 1.25 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | 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 | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 1AYL | 1.7 | 40.5 | 1.34 | 58596 | 2930 | 99.58 | 0.1691 | 0.167 | 0.2083 | 21.3601 |
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] | |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4122 |
Nucleic Acid Atoms | |
Solvent Atoms | 551 |
Heterogen Atoms | 37 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
XDS | data reduction |
XDS | data scaling |
MOLREP | phasing |