7P9T
Crystal structure of CD73 in complex with dCMP in the open form
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 4H2G |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 292 | 7 mg/mL protein concentration, 100 mM Tris pH 7.8, 10 % PEG6000, equal amounts of protein and reservoir. Following crystal formation (1-2 days), the crystals were transferred to soaking solution containing reservoir solution and 50 mM dCMP. Crystals were then transferred to cryo solution containing an additional 20 % glycerol, soaked for ~2-5 min, and flash frozen in liquid nitrogen. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.52 | 51.22 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 68.104 | α = 90 |
b = 132.846 | β = 90 |
c = 67.404 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 2 |
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 | RAYONIX MX-225 | 2016-10-04 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | BESSY BEAMLINE 14.1 | 0.8943 | BESSY | 14.1 |
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 | 1.79 | 47.95 | 99.7 | 0.107 | 0.122 | 0.059 | 0.997 | 11.1 | 4.1 | 58377 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
1 | 1.79 | 1.82 | 99.1 | 0.994 | 1.14 | 0.551 | 0.546 | 4.1 |
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 | FOURIER SYNTHESIS | THROUGHOUT | 4h2g | 1.79 | 47.95 | 55272 | 2944 | 99.6 | 0.1868 | 0.1853 | 0.2168 | RANDOM | 19.897 |
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] | |
0.33 | -0.32 | -0.01 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.428 |
r_dihedral_angle_4_deg | 18.69 |
r_dihedral_angle_3_deg | 13.582 |
r_dihedral_angle_1_deg | 9.008 |
r_angle_refined_deg | 1.9 |
r_chiral_restr | 0.125 |
r_bond_refined_d | 0.013 |
r_gen_planes_refined | 0.012 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4047 |
Nucleic Acid Atoms | |
Solvent Atoms | 226 |
Heterogen Atoms | 23 |
Software
Software | |
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Software Name | Purpose |
Aimless | data scaling |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
XDS | data reduction |
REFMAC | phasing |