6AK3
Crystal structure of the human prostaglandin E receptor EP3 bound to prostaglandin E2
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | LIPIDIC CUBIC PHASE | 293 | buffer A (0.1 M MES-NaOH (pH 6.0), 35 % PEG300, 400 mM Na2SO4, 1% 1,2,3-heptanetriol, 0.2 mM ONO-AE3-240), buffer B (0.1 M MES-NaOH (pH 5.5-6.0), 30-40 % PEG300, 100 mM NaCl, 100 mM Li2SO4, 1% 1,2,3-heptanetriol, 0.2 mM ONO-AE3-240), buffer C (0.1 M MES-NaOH (pH 6.1) or 0.1 M Tris-HCl (pH 7.5-8.0), 30 % PEG500MME, 200 mM (NH4)2SO4, 1% 1,2,3-heptanetriol, 0.2 mM ONO-AE3-240), buffer D (0.1 M MES-NaOH (pH 5.8-6.1), 30 % PEG300, 100 mM MgSO4, 1% 1,2,3-heptanetriol, 0.2 mM ONO-AE3-240), buffer E (0.1 M MES-NaOH (pH 5.5), 30 % PEG300, 100 mM K2SO4, 1% 1,2,3-heptanetriol, 0.2 mM ONO-AE3-240) |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.46 | 50.07 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 66.09 | α = 90 |
b = 42.28 | β = 96.09 |
c = 161.3 | 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 EIGER X 9M | 2018-01-22 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SPRING-8 BEAMLINE BL32XU | 1 | SPring-8 | BL32XU |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 2.9 | 50 | 99.9 | 1.15 | 43.4 | 20206 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
1 | 2.9 | 3.08 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | 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 | FREE R-VALUE | 2.9 | 48.377 | 1.34 | 20175 | 967 | 99.83 | 0.2529 | 0.2508 | 0.2952 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 11.924 |
f_angle_d | 0.437 |
f_chiral_restr | 0.035 |
f_plane_restr | 0.003 |
f_bond_d | 0.002 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4109 |
Nucleic Acid Atoms | |
Solvent Atoms | |
Heterogen Atoms | 142 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
XDS | data reduction |
XDS | data scaling |
PHASER | phasing |