Femtosecond Structural Dynamics Drives the Trans/Cis Isomerization in Photoactive Yellow Protein: Dark structure of photoactive yellow protein
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | LIQUID DIFFUSION | 7 | 295 | 4.45M Sodium malonate (pH7) injected into concentrated protein for a final malonate concentration of 3.2M. Sit for 1 hour at room temperature. Spin in spin concentrator for 2 hours. Sit at room temperature for 4 hours. Crystals are harvested and resuspended in 3.0M malonate. |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 1.88 | 34.5 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 66.9 | α = 90 |
| b = 66.9 | β = 90 |
| c = 40.8 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 63 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 295 | PIXEL | CS-PAD CXI-1 | 2015-03-18 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | FREE ELECTRON LASER | SLAC LCLS BEAMLINE CXI | 1.31 | SLAC LCLS | CXI |
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 | 1.6 | 19.31 | 98.39 | 10 | 992 | 13060 | 13060 | ||||||||||||
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 | THROUGHOUT | 1.6 | 19.31 | 13060 | 685 | 98.39 | 0.15492 | 0.15355 | 0.17 | 0.18119 | 0.2 | RANDOM | 14.796 | ||||||
| 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] | |
| -0.04 | -0.02 | -0.04 | 0.14 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 40.881 |
| r_dihedral_angle_3_deg | 17.153 |
| r_dihedral_angle_4_deg | 10.079 |
| r_dihedral_angle_1_deg | 7.087 |
| r_long_range_B_refined | 6.483 |
| r_long_range_B_other | 6.221 |
| r_scangle_other | 4.805 |
| r_scbond_it | 3.046 |
| r_scbond_other | 3.046 |
| r_mcangle_it | 2.528 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 987 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 92 |
| Heterogen Atoms | |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| CrystFEL | data reduction |
| CrystFEL | data scaling |
