5KW2
The extra-helical binding site of GPR40 and the structural basis for allosteric agonism and incretin stimulation
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | LIPIDIC CUBIC PHASE | 298 | 0.1 M Tris HCl, pH 8.5, 30% PEG 400, 0.2 M ammonium formate. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.12 | 60.54 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 147.654 | α = 90 |
b = 55.95 | β = 93.77 |
c = 80.313 | 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 | 100 | CCD | RAYONIX MX-225 | 2016-02-02 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 31-ID | 0.97931 | APS | 31-ID |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 2.76 | 19.81 | 99.6 | 0.13 | 5.9 | 3.7 | 16090 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
1 | 2.76 | 2.91 | 100 | 1.2 | 3.7 |
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 | MOLECULAR REPLACEMENT | THROUGHOUT | 4PHU | 2.76 | 19.81 | 16090 | 857 | 100 | 0.2326 | 0.2304 | 0.2727 | RANDOM | 41.374 |
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] | |
0.77 | -1.55 | 3.1 | -4.08 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 34.442 |
r_dihedral_angle_3_deg | 15.338 |
r_dihedral_angle_4_deg | 12.2 |
r_dihedral_angle_1_deg | 3.932 |
r_angle_refined_deg | 0.952 |
r_chiral_restr | 0.059 |
r_bond_refined_d | 0.006 |
r_gen_planes_refined | 0.004 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3128 |
Nucleic Acid Atoms | |
Solvent Atoms | 52 |
Heterogen Atoms | 46 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
XDS | data reduction |
SCALA | data scaling |
PHASER | phasing |