7LJU
Porcine Dihydropyrimidine Dehydrogenase (DPD) crosslinked with 5-Ethynyluracil (5EU)
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1H7X |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 293 | DPD was crystallized by the vapor diffusion, hanging drop method by mixing 3 uL of 39 uM DPD in 25 mM HEPES, 2 mM DTT, 10% glycerol, pH 7.5 with 3 uL of well solution containing 100 mM NaCl, 2 mM DTT, 18% PEG 6000, pH 4.7. Rectangular hexahedron crystals grew in ~16-20 hours to a size of approximately 50 x 200 x 20 um. The crystals were soaked for 2 hours in 25 mM HEPES, 100 mM NaCl, 2 mM DTT, 100 uM NADPH, 100 uM 5EU, 20% PEG 6000, 20% PEG 400, pH 7.5. The whole procedure has been done anaerobically in the glove box. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.37 | 48.12 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 82.06 | α = 90 |
b = 158.94 | β = 96.03 |
c = 163.21 | 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 | PIXEL | DECTRIS EIGER2 X 9M | 2020-12-09 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 21-ID-D | 1.1272 | APS | 21-ID-D |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | 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 | 1.87 | 45.46 | 98.3 | 0.215 | 0.117 | 0.989 | 6.3 | 4.1 | 336013 | 21.49 |
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 | 1.87 | 1.92 | 92.4 | 1.066 | 0.668 | 0.52 | 1.1 | 3.4 |
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 | 1H7X | 1.87 | 40.59 | 1.34 | 335874 | 16917 | 98.23 | 0.1739 | 0.1719 | 0.2109 | 26.9761 |
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 | 30805 |
Nucleic Acid Atoms | |
Solvent Atoms | 3389 |
Heterogen Atoms | 676 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
xia2 | data scaling |
PDB_EXTRACT | data extraction |
xia2 | data reduction |
PHASER | phasing |