XFEL structure of the on state of a reversibly photoswitching fluorescent protein determined using the droplet injection method
Serial Crystallography (SX)
Crystallization
| Crystalization Experiments |
|---|
| ID | Method | pH | Temperature | Details |
|---|
| 1 | BATCH MODE | | 293 | 0.2 M lithium sulfate
0.1 M Tris-Cl pH 8.5
23-30% PEG 3350 |
| Crystal Properties |
|---|
| Matthews coefficient | Solvent content |
|---|
| 2.28 | 45.98 |
Crystal Data
| Unit Cell |
|---|
| Length ( Å ) | Angle ( ˚ ) |
|---|
| a = 39.8 | α = 90 |
| b = 74.6 | β = 90 |
| c = 79.2 | 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 | | 2016-05-12 | M | SINGLE WAVELENGTH |
| Radiation Source |
|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
|---|
| 1 | FREE ELECTRON LASER | SACLA BEAMLINE BL3 | 1.7 | 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 | 1.91 | 54.31 | 96.8 | 7.25 | 6.32 | | 18911 | | | |
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 | MOLECULAR REPLACEMENT | THROUGHOUT | 1.91 | 54.3 | 16153 | 855 | 89.98 | 0.17064 | 0.16721 | 0.17 | 0.24124 | 0.24 | RANDOM | 43.626 |
| 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] |
|---|
| 1.72 | | | -0.8 | | -0.92 |
| RMS Deviations |
|---|
| Key | Refinement Restraint Deviation |
|---|
| r_dihedral_angle_2_deg | 37.672 |
| r_long_range_B_refined | 27.76 |
| r_dihedral_angle_4_deg | 22.715 |
| r_dihedral_angle_3_deg | 17.376 |
| r_dihedral_angle_1_deg | 7.316 |
| r_scbond_it | 4.619 |
| r_mcangle_it | 4.081 |
| r_mcbond_it | 3.006 |
| r_angle_refined_deg | 1.917 |
| r_chiral_restr | 0.135 |
| RMS Deviations |
|---|
| Key | Refinement Restraint Deviation |
|---|
| r_dihedral_angle_2_deg | 37.672 |
| r_long_range_B_refined | 27.76 |
| r_dihedral_angle_4_deg | 22.715 |
| r_dihedral_angle_3_deg | 17.376 |
| r_dihedral_angle_1_deg | 7.316 |
| r_scbond_it | 4.619 |
| r_mcangle_it | 4.081 |
| r_mcbond_it | 3.006 |
| r_angle_refined_deg | 1.917 |
| r_chiral_restr | 0.135 |
| r_bond_refined_d | 0.016 |
| r_gen_planes_refined | 0.009 |
| r_bond_other_d | |
| r_angle_other_deg | |
| r_gen_planes_other | |
| r_nbd_refined | |
| r_nbd_other | |
| r_nbtor_refined | |
| r_nbtor_other | |
| r_xyhbond_nbd_refined | |
| r_xyhbond_nbd_other | |
| r_metal_ion_refined | |
| r_metal_ion_other | |
| r_symmetry_vdw_refined | |
| r_symmetry_vdw_other | |
| r_symmetry_hbond_refined | |
| r_symmetry_hbond_other | |
| r_symmetry_metal_ion_refined | |
| r_symmetry_metal_ion_other | |
| r_mcbond_other | |
| r_mcangle_other | |
| r_scbond_other | |
| r_scangle_it | |
| r_scangle_other | |
| r_long_range_B_other | |
| r_rigid_bond_restr | |
| r_sphericity_free | |
| r_sphericity_bonded | |
| Non-Hydrogen Atoms Used in Refinement |
|---|
| Non-Hydrogen Atoms | Number |
|---|
| Protein Atoms | 1751 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 175 |
| Heterogen Atoms | |
Software
| Software |
|---|
| Software Name | Purpose |
|---|
| REFMAC | refinement |
| MOSFLM | data reduction |
| SCALA | data scaling |
| MOLREP | phasing |