Room-temperature structure of the stabilised A2A-Theophylline complex determined by synchrotron serial crystallography
Serial Crystallography (SX)
Crystallization
| Crystalization Experiments |
|---|
| ID | Method | pH | Temperature | Details |
|---|
| 1 | LIPIDIC CUBIC PHASE | 4.5 | 293 | 0.1 M tri-sodium citrate pH 4.5, 0.05 M sodium thiocyanate, 29% (v/v) polyethylene glycol 400, 2% (v/v) 2,5-hexanediol |
| Crystal Properties |
|---|
| Matthews coefficient | Solvent content |
|---|
| 2.93 | 58.02 |
Crystal Data
| Unit Cell |
|---|
| Length ( Å ) | Angle ( ˚ ) |
|---|
| a = 40.531 | α = 90 |
| b = 182.311 | β = 90 |
| c = 144.267 | 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 | DECTRIS PILATUS3 6M | | 2019-10-10 | M | SINGLE WAVELENGTH |
| Radiation Source |
|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
|---|
| 1 | SYNCHROTRON | DIAMOND BEAMLINE I24 | 0.96862 | Diamond | I24 |
Serial Crystallography
| Sample delivery method |
|---|
| Diffraction ID | Description | Sample Delivery Method |
|---|
| 1 | Extruder | injection |
| Data Reduction |
|---|
| Diffraction ID | Frames Indexed | Crystal Hits | Frames Indexed | Latices Merged |
|---|
| 1 | 10457 | | 10457 | |
| Injection |
|---|
| Diffraction ID | Description | Flow Rate | Injector Diameter | Injection Power | Injector Nozzle | Filter Size | Carrier Solvent |
|---|
| 1 | LCP injector | 8 (µl/min) | undefined (µm) | | gas | | LCP |
Data Collection
| Overall |
|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | CC (Half) | 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 | 3.45 | 23.63 | 99.4 | 0.985 | 0.168 | 20.64 | 233.6 | | 7416 | | | 88 |
| Highest Resolution Shell |
|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | CC (Half) | R Split (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) |
|---|
| 1 | 3.45 | 3.54 | 96.9 | | 0.236 | 0.955 | 1.48 | 17.3 | |
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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B |
|---|
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 5MZJ | 3.45 | 23.63 | 7034 | 370 | 99.45 | 0.2197 | 0.2185 | 0.22 | 0.2412 | 0.24 | RANDOM | 129.79 |
| 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] |
|---|
| 0.25 | | | -0.25 | | |
| RMS Deviations |
|---|
| Key | Refinement Restraint Deviation |
|---|
| r_dihedral_angle_2_deg | 32.714 |
| r_dihedral_angle_4_deg | 15.118 |
| r_dihedral_angle_3_deg | 13.587 |
| r_dihedral_angle_1_deg | 4.228 |
| r_angle_refined_deg | 0.638 |
| r_chiral_restr | 0.065 |
| r_bond_refined_d | 0.002 |
| r_gen_planes_refined | 0.002 |
| Non-Hydrogen Atoms Used in Refinement |
|---|
| Non-Hydrogen Atoms | Number |
|---|
| Protein Atoms | 2986 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 20 |
| Heterogen Atoms | 176 |
Software
| Software |
|---|
| Software Name | Purpose |
|---|
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| DIALS | data reduction |
| PHASER | phasing |