2.5 angstrom A2a adenosine receptor structure with MR phasing using XFEL data
Serial Crystallography (SX)
Starting Model(s)
| Initial Refinement Model(s) |
|---|
| Type | Source | Accession Code | Details |
|---|
|
experimental model | PDB | 4EIY | |
Crystallization
| Crystalization Experiments |
|---|
| ID | Method | pH | Temperature | Details |
|---|
| 1 | LIPIDIC CUBIC PHASE | 5 | 293 | 28 % (v/v) PEG 400, 40 mM sodium thiocyanate and 100 mM sodium citrate buffer pH 5.0 |
| Crystal Properties |
|---|
| Matthews coefficient | Solvent content |
|---|
| 2.61 | 52.79 |
Crystal Data
| Unit Cell |
|---|
| Length ( Å ) | Angle ( ˚ ) |
|---|
| a = 40.36 | α = 90 |
| b = 180.74 | β = 90 |
| c = 142.8 | γ = 90 |
| Symmetry |
|---|
| 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 | PIXEL | CS-PAD CXI-1 | K-B mirrors | 2015-04-01 | M | SINGLE WAVELENGTH |
| Radiation Source |
|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
|---|
| 1 | FREE ELECTRON LASER | SLAC LCLS BEAMLINE CXI | 2.07 | SLAC LCLS | CXI |
Serial Crystallography
| Sample delivery method |
|---|
| Diffraction ID | Description | Sample Delivery Method |
|---|
| 1 | | injection |
| Measurement |
|---|
| Diffraction ID | Pulse Duration | Pulse Repetition Rate | Focal Spot Size | Pulse Energy | Photons Per Pulse |
|---|
| 1 | 45 (fs) | 120 | 1.5 | undefined (KeV) | 170000000000 |
| Data Reduction |
|---|
| Diffraction ID | Frames Indexed | Crystal Hits | Frames Indexed | Latices Merged |
|---|
| 1 | 578620 | 1797503 | 578620 | |
| Injection |
|---|
| Diffraction ID | Description | Flow Rate | Injector Diameter | Injection Power | Injector Nozzle | Filter Size | Carrier Solvent |
|---|
| 1 | | 220 (µl/min) | undefined (µm) | | | | |
Data Collection
| Overall |
|---|
| 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 | 2.5 | 24 | 100 | 20.3 | 1022 | | 34140 | | | 41.5 |
| 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 | 2.5 | 2.58 | 83.5 | | 1.6 | 7 | |
Refinement
| Statistics |
|---|
| 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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | Mean Isotropic B |
|---|
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 4EIY | 2.5 | 23.437 | 1.36 | 18622 | 900 | 99.97 | 0.175 | 0.1728 | 0.17 | 0.2193 | 0.22 | |
| 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] |
|---|
| | | | | |
| RMS Deviations |
|---|
| Key | Refinement Restraint Deviation |
|---|
| f_dihedral_angle_d | 12.993 |
| f_angle_d | 0.902 |
| f_chiral_restr | 0.041 |
| f_plane_restr | 0.003 |
| f_bond_d | 0.002 |
| Non-Hydrogen Atoms Used in Refinement |
|---|
| Non-Hydrogen Atoms | Number |
|---|
| Protein Atoms | 2995 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 63 |
| Heterogen Atoms | 358 |
Software
| Software |
|---|
| Software Name | Purpose |
|---|
| PHENIX | refinement |
| CrystFEL | data reduction |
| CrystFEL | data scaling |
| PHASER | phasing |