Photoactivation in Bacteriophytochromes, reference (dark) structure for the 3 ps time point
Serial Crystallography (SX)  
Starting Model(s)
| Initial Refinement Model(s) | 
|---|
| Type | Source | Accession Code | Details | 
|---|
|
experimental model | PDB | 6PTQ |  | 
Crystallization
| Crystalization Experiments | 
|---|
| ID | Method | pH | Temperature | Details | 
|---|
| 1 | BATCH MODE |  | 291 | Hampton Crystal Screen Cryo HR2-122, #9 (PEG 4000), benzamidine HCl (3%) | 
| Crystal Properties | 
|---|
| Matthews coefficient | Solvent content | 
|---|
| 2.76 | 55.42 | 
Crystal Data
| Unit Cell | 
|---|
| Length ( Å ) | Angle ( ˚ ) | 
|---|
| a = 83.58 | α = 90 | 
| b = 83.04 | β = 107.74 | 
| c = 86.79 | γ = 90 | 
| Symmetry | 
|---|
| Space Group | P 1 21 1 | 
|---|
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 | SLAC ePix10k 2M |  | 2022-02-25 | M | SINGLE WAVELENGTH | 
| Radiation Source | 
|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline | 
|---|
| 1 | FREE ELECTRON LASER | SLAC LCLS BEAMLINE MFX | 1.3 | SLAC LCLS | MFX | 
Serial Crystallography
| Sample delivery method | 
|---|
| Diffraction ID | Description | Sample Delivery Method | 
|---|
| 1 | Superlube (viscous media) | injection | 
| Measurement | 
|---|
| Diffraction ID | Pulse Duration | Pulse Repetition Rate | Focal Spot Size | Pulse Energy | Photons Per Pulse | 
|---|
| 1 | 40 (fs) | 120 | 5 | 9.3 (KeV) |  | 
| Injection | 
|---|
| Diffraction ID | Description | Flow Rate | Injector Diameter | Injection Power | Injector Nozzle | Filter Size | Carrier Solvent | 
|---|
| 1 | viscous media injector | undefined (µl/min) | undefined (µm) |  |  |  |  | 
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 | 2.3 | 30.5 | 100 | 0.99 | 0.095 | 5.8 | 963 |  | 50738 |  |  | 63.63 | 
| 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 | 2.3 | 2.43 | 100 |  | 0.11 | 0.22 | 664 |  | 
Refinement
| Statistics | 
|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | 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 | FOURIER SYNTHESIS | FREE R-VALUE | 2.3 | 27.3 | 0.03 | 43709 | 2222 | 86.78 | 0.1939 | 0.1908 | 0.1908 | 0.2509 | 0.2509 | 74.67 | 
| 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 | 17.5316 | 
| f_angle_d | 1.0997 | 
| f_chiral_restr | 0.0497 | 
| f_plane_restr | 0.0111 | 
| f_bond_d | 0.0083 | 
| Non-Hydrogen Atoms Used in Refinement | 
|---|
| Non-Hydrogen Atoms | Number | 
|---|
| Protein Atoms | 7322 | 
| Nucleic Acid Atoms |  | 
| Solvent Atoms | 61 | 
| Heterogen Atoms | 95 | 
Software
| Software | 
|---|
| Software Name | Purpose | 
|---|
| PHENIX | refinement | 
| CrystFEL | data reduction | 
| CrystFEL | data scaling | 
| Coot | model building |