Structure of the photosensory module of Deinococcus phytochrome by serial femtosecond X-ray crystallography
Serial Crystallography (SX)
Starting Model(s)
| Initial Refinement Model(s) |
|---|
| Type | Source | Accession Code | Details |
|---|
|
experimental model | PDB | 2O9C | PAS-GAF from PDB 2O9C, and PHY domain from 4Q0J | |
experimental model | PDB | 4Q0J | PAS-GAF from PDB 2O9C, and PHY domain from 4Q0J |
Crystallization
| Crystalization Experiments |
|---|
| ID | Method | pH | Temperature | Details |
|---|
| 1 | BATCH MODE | 6.5 | 298 | PEG 3350, Tacsimate pH 6.0, Tacsimate pH 7.0, ethylene glycol, PIPES-NaOH pH 6.5 |
| Crystal Properties |
|---|
| Matthews coefficient | Solvent content |
|---|
| 4.43 | 72.23 |
Crystal Data
| Unit Cell |
|---|
| Length ( Å ) | Angle ( ˚ ) |
|---|
| a = 151.7 | α = 90 |
| b = 151.7 | β = 90 |
| c = 151.2 | γ = 120 |
| Symmetry |
|---|
| Space Group | P 64 2 2 |
|---|
Diffraction
| Diffraction Experiment |
|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol |
|---|
| 1 | 1 | x-ray | 298 | CCD | RAYONIX MX170-HS | Compound refractive lenses | 2015-10-31 | M | SINGLE WAVELENGTH |
| Radiation Source |
|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
|---|
| 1 | FREE ELECTRON LASER | SLAC LCLS BEAMLINE MFX | 1.305 | SLAC LCLS | MFX |
Data Collection
| Overall |
|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 3.3 | 131.376 | 99.86 | 0.863 | 29.234 | 39.16 | | 15996 | | | |
| Highest Resolution Shell |
|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) |
|---|
| 1 | 3.3 | 3.3569 | 99.87 | | 0.178 | 4.069 | 20.75 | |
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 | FREE R-VALUE | PAS-GAF from PDB 2O9C, and PHY domain from 4Q0J | 3.3 | 37.894 | 1.34 | 15968 | 820 | 99.94 | 0.2135 | 0.2117 | 0.21 | 0.2447 | 0.24 | 91.6934 |
| 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 | 17.379 |
| f_angle_d | 0.562 |
| f_chiral_restr | 0.038 |
| f_plane_restr | 0.004 |
| f_bond_d | 0.002 |
| Non-Hydrogen Atoms Used in Refinement |
|---|
| Non-Hydrogen Atoms | Number |
|---|
| Protein Atoms | 3726 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 8 |
| Heterogen Atoms | 43 |
Software
| Software |
|---|
| Software Name | Purpose |
|---|
| cctbx.xfel | data collection |
| cctbx.prime | data reduction |
| cctbx.xfel | data reduction |
| PHASER | phasing |
| PHENIX | refinement |
| PDB_EXTRACT | data extraction |
| psana | data reduction |