Serial Femtosecond Crystallography (SFX) of Ground State Bacteriorhodopsin Crystallized from Bicelles in Complex with Iodine-labeled Detergent HAD13a Determined Using 7-keV X-ray Free Electron Laser (XFEL) at SACLA
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | BATCH MODE | 293 | 25%(w/v) DMPC/CHAPSO bicelles, 3.2 M NaH2PO4, 3.5%(w/v) triethylene glycol, 180 mM 1,6-hexanediol, 4 mM HAD13a | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.84 | 56.73 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 46.2 | α = 90 |
| b = 103 | β = 90 |
| c = 128.7 | 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 | CCD | MPCCD | 2015-11-22 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | FREE ELECTRON LASER | SACLA BEAMLINE BL3 | 1.771 | SACLA | BL3 |
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 | 2.1 | 50 | 100 | 5.7 | 107.6 | 18388 | |||||||||||||
| 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 | 2.1 | 2.17 | |||||||||||||||||
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) | R-Free Selection Details | Mean Isotropic B | |||||
| X-RAY DIFFRACTION | SAD | THROUGHOUT | 2.1 | 50 | 17471 | 882 | 99.96 | 0.16601 | 0.16339 | 0.17 | 0.21604 | 0.22 | RANDOM | 68.525 | |||||
| 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] | |
| 2 | -1.08 | -0.92 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 33.966 |
| r_dihedral_angle_3_deg | 16.418 |
| r_dihedral_angle_4_deg | 16.258 |
| r_long_range_B_refined | 9.267 |
| r_long_range_B_other | 9.263 |
| r_scangle_other | 8.693 |
| r_scbond_it | 6.455 |
| r_scbond_other | 6.452 |
| r_mcangle_other | 4.747 |
| r_mcangle_it | 4.745 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1741 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 37 |
| Heterogen Atoms | 219 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| Cheetah | data extraction |
| CrystFEL | data processing |
| SHELX | phasing |
