6WQA
2.0A angstrom A2a adenosine receptor structure using XFEL data collected in helium atmosphere.
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
---|---|---|---|
Type | Source | Accession Code | Details |
experimental model | PDB | 5K2D |
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | LIPIDIC CUBIC PHASE | 293 | PEG400, sodium thiocyanate, sodium citrate |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.6 | 52.69 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 40.35 | α = 90 |
b = 180.5 | β = 90 |
c = 142.7 | γ = 90 |
Symmetry | |
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Space Group | C 2 2 21 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 293 | CCD | RAYONIX MX170-HS | 2014-12-15 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | FREE ELECTRON LASER | SLAC LCLS BEAMLINE CXI | 1.283 | SLAC LCLS | CXI |
Serial Crystallography
Sample delivery method | ||
---|---|---|
Diffraction ID | Description | Sample Delivery Method |
1 | injection |
Injection | |||||||
---|---|---|---|---|---|---|---|
Diffraction ID | Description | Flow Rate | Injector Diameter | Injection Power | Injector Nozzle | Filter Size | Carrier Solvent |
1 |
Data Reduction | |||
---|---|---|---|
Diffraction ID | Frames Indexed | Crystal Hits | Total Frames |
1 | 16737 | 26341 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Split (All) | 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 | 27.7 | 100 | 0.19 | 4.1 | 205 | 35870 | 33.85 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Split (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 2 | 2.07 | 100 | 2.11 | 1.22 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 5K2D | 2 | 27.7 | 35862 | 2000 | 100 | 0.194 | 0.193 | 0.216 | RANDOM | 49.05 |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
-2.1385 | 1.1739 | 0.9645 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
t_other_torsion | 2.94 |
t_omega_torsion | 2.6 |
t_angle_deg | 1.06 |
t_bond_d | 0.01 |
t_dihedral_angle_d | |
t_trig_c_planes | |
t_gen_planes | |
t_it | |
t_nbd | |
t_improper_torsion |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 2929 |
Nucleic Acid Atoms | |
Solvent Atoms | 84 |
Heterogen Atoms | 438 |
Software
Software | |
---|---|
Software Name | Purpose |
BUSTER | refinement |
PHASER | phasing |
PDB_EXTRACT | data extraction |
CrystFEL | data reduction |
CrystFEL | data scaling |