Joint X-ray/neutron structure of reversibly photoswitching chromogenic protein, Dathail
NEUTRON DIFFRACTION - X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments |
|---|
| ID | Method | pH | Temperature | Details |
|---|
| 1 | VAPOR DIFFUSION, SITTING DROP | 6.5 | 290 | 0.2M Magnesium Chloride, 0.1M Bis-Tris:HCl pH 6.5, 25% PEG 3350 |
| Crystal Properties |
|---|
| Matthews coefficient | Solvent content |
|---|
| 2.5 | 50.8 |
Crystal Data
| Unit Cell |
|---|
| Length ( Å ) | Angle ( ˚ ) |
|---|
| a = 77.209 | α = 90 |
| b = 82.049 | β = 90 |
| c = 40.889 | γ = 90 |
| Symmetry |
|---|
| Space Group | P 21 21 2 |
|---|
Diffraction
| Diffraction Experiment |
|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol |
|---|
| 1 | 1 | neutron | 293 | ANGER CAMERA | ORNL | COLLIMATORS | 2014-09-23 | L | LAUE |
| 2 | 1 | x-ray | 293 | IMAGE PLATE | RIGAKU RAXIS IV++ | OSMIC VARIMAX | 2014-01-13 | M | SINGLE WAVELENGTH |
| Radiation Source |
|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
|---|
| 1 | NUCLEAR REACTOR | ORNL Spallation Neutron Source BEAMLINE MANDI | 2.0-4.0 | ORNL Spallation Neutron Source | MANDI |
| 2 | ROTATING ANODE | RIGAKU MICROMAX-007 HF | 1.54 | | |
Data Collection
| Overall |
|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym I (Observed) | Rrim I (All) | Rpim I (All) | 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 | 2.5 | 40 | 63.6 | 0.317 | | | | | | 3.9 | 1.4 | | 6158 | 2.5 | | |
| 2 | 2.1 | 40 | 96.6 | 0.05 | | | | | | 25.3 | 3.8 | | 15273 | 2.5 | | |
| Highest Resolution Shell |
|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | R Merge I (Observed) | R-Sym I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | R Split (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) |
|---|
| 1 | 2.5 | 2.56 | | 0.263 | | | | | | 2.2 | 0.8 | |
| 2 | 2.1 | 2.18 | | 0.584 | | | | | | 2.2 | 3.6 | |
Refinement
| Statistics |
|---|
| Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Cut-off Sigma (I) | Cut-off Sigma (F) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B |
|---|
| NEUTRON DIFFRACTION | MOLECULAR REPLACEMENT | 2.5 | 40 | | 2.5 | 9281 | 5652 | 274 | 60 | | | 0.305 | | 0.344 | | RANDOM | 43.44 |
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | 2.1 | 40 | | 2.5 | 15778 | 11878 | 489 | 75.2 | | | 0.235 | 0.23 | 0.253 | 0.25 | RANDOM | 43.44 |
| 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 |
|---|
| x_torsion_deg | 17.3 |
| x_angle_deg | 1.3 |
| x_torsion_impr_deg | 0.97 |
| x_bond_d | 0.01 |
| Non-Hydrogen Atoms Used in Refinement |
|---|
| Non-Hydrogen Atoms | Number |
|---|
| Protein Atoms | 1746 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 92 |
| Heterogen Atoms | |
Software
| Software |
|---|
| Software Name | Purpose |
|---|
| nCNS | refinement |
| HKL-3000 | data reduction |
| HKL-3000 | data scaling |
| PHASER | phasing |
| Mantid | data reduction |
| SHELXPREP | data scaling |