Structure of the (6-4) photolyase of Caulobacter crescentus in its fully reduced state determined by serial femtosecond crystallography
Serial Crystallography (SX)
Starting Model(s)
| Initial Refinement Model(s) |
|---|
| Type | Source | Accession Code | Details |
|---|
|
experimental model | PDB | 8A1H | |
Crystallization
| Crystalization Experiments |
|---|
| ID | Method | pH | Temperature | Details |
|---|
| 1 | BATCH MODE | 8.5 | 293 | 0.1 M Tris (pH 8.5)
0.2 M MgCl2
20% (w/v) PEG3350 |
| Crystal Properties |
|---|
| Matthews coefficient | Solvent content |
|---|
| 2.32 | 47.01 |
Crystal Data
| Unit Cell |
|---|
| Length ( Å ) | Angle ( ˚ ) |
|---|
| a = 49.8 | α = 90 |
| b = 103.4 | β = 90 |
| c = 104.8 | γ = 90 |
| Symmetry |
|---|
| Space Group | P 21 21 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 | MPCCD | | 2022-11-04 | M | SINGLE WAVELENGTH |
| Radiation Source |
|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
|---|
| 1 | FREE ELECTRON LASER | SACLA BEAMLINE BL2 | 1.24 | SACLA | BL2 |
Serial Crystallography
| Sample delivery method |
|---|
| Diffraction ID | Description | Sample Delivery Method |
|---|
| 1 | LCP extruder | injection |
| Data Reduction |
|---|
| Diffraction ID | Frames Indexed | Crystal Hits | Frames Indexed | Latices Merged |
|---|
| 1 | 46160 | 63432 | 46160 | |
| Injection |
|---|
| Diffraction ID | Description | Flow Rate | Injector Diameter | Injection Power | Injector Nozzle | Filter Size | Carrier Solvent |
|---|
| 1 | LCP extruder | undefined (µl/min) | undefined (µm) | HPLC | | | grease |
Data Collection
| Overall |
|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | CC (Half) | 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 | 1.78 | 24.9 | 100 | 0.087 | 0.997 | 9.46 | 843 | | 52730 | | | 21.81 |
| Highest Resolution Shell |
|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) |
|---|
| 1 | 1.78 | 1.84 | | | 1.132 | 0.544 | 1.39 | | |
Refinement
| Statistics |
|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | 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) | Mean Isotropic B |
|---|
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 1.78 | 24.9 | 52642 | 2583 | 99.99 | 0.1853 | 0.1839 | 0.1839 | 0.2123 | 0.2123 | 28.06 |
| 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 | 15.6208 |
| f_angle_d | 0.9604 |
| f_chiral_restr | 0.0507 |
| f_plane_restr | 0.01 |
| f_bond_d | 0.0063 |
| Non-Hydrogen Atoms Used in Refinement |
|---|
| Non-Hydrogen Atoms | Number |
|---|
| Protein Atoms | 4078 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 266 |
| Heterogen Atoms | 84 |
Software
| Software |
|---|
| Software Name | Purpose |
|---|
| PHENIX | refinement |
| CrystFEL | data reduction |
| CrystFEL | data scaling |
| PHASER | phasing |