6CLT
1.45 A MicroED structure of GSNQNNF at 3.8 e- / A^2
ELECTRON CRYSTALLOGRAPHY
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 4.86 | α = 87.69 |
b = 13.88 | β = 84.91 |
c = 17.93 | γ = 81.64 |
Symmetry | |
---|---|
Space Group | P 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | 2017-08-01 |
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 | R-Free | R-Free Selection Details | Mean Isotropic B | |||||||
ELECTRON CRYSTALLOGRAPHY | THROUGHOUT | 1.45 | 13.73 | 585 | 59 | 77.68 | 0.22797 | 0.22015 | 0.30726 | RANDOM | 11.006 |
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] | |
-1.75 | 0.03 | -0.31 | -0.83 | -1.17 | 2.49 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 51.617 |
r_long_range_B_refined | 23.063 |
r_long_range_B_other | 22.848 |
r_dihedral_angle_3_deg | 10.215 |
r_dihedral_angle_1_deg | 6.129 |
r_angle_refined_deg | 1.448 |
r_angle_other_deg | 1.266 |
r_scangle_other | 0.949 |
r_mcangle_it | 0.818 |
r_mcangle_other | 0.814 |
Software
Software | |
---|---|
Software Name | Purpose |
REFMAC | refinement |
XDS | data reduction |
XSCALE | data scaling |
Sample |
---|
Synthetic proto-filament |
Specimen Preparation | |
---|---|
Sample Aggregation State | 3D ARRAY |
Vitrification Instrument | FEI VITROBOT MARK IV |
Cryogen Name | ETHANE |
Sample Vitrification Details |
3D Reconstruction | |
---|---|
Reconstruction Method | CRYSTALLOGRAPHY |
Number of Particles | |
Reported Resolution (Å) | 1.45 |
Resolution Method | DIFFRACTION PATTERN/LAYERLINES |
Other Details | |
Refinement Type | |
Symmetry Type | 3D CRYSTAL |
Space Group Name | |
Length a | 4.86 |
Length b | 13.88 |
Length c | 13.88 |
Angle Alpha | 81.64 |
Angle Beta | 84.912 |
Angle Gamma | 81.64 |
Map-Model Fitting and Refinement | |||||
---|---|---|---|---|---|
Id | 1 | ||||
Refinement Space | RECIPROCAL | ||||
Refinement Protocol | OTHER | ||||
Refinement Target | |||||
Overall B Value | 11.006 | ||||
Fitting Procedure | |||||
Details | Electron scattering factors |
Data Acquisition | |||||||||
---|---|---|---|---|---|---|---|---|---|
Detector Type | TVIPS TEMCAM-F416 (4k x 4k) | ||||||||
Electron Dose (electrons/Å**2) | 0.00357 |
Imaging Experiment | 1 |
---|---|
Date of Experiment | |
Temperature (Kelvin) | |
Microscope Model | FEI TECNAI F20 |
Minimum Defocus (nm) | |
Maximum Defocus (nm) | |
Minimum Tilt Angle (degrees) | |
Maximum Tilt Angle (degrees) | |
Nominal CS | |
Imaging Mode | DIFFRACTION |
Specimen Holder Model | GATAN 626 SINGLE TILT LIQUID NITROGEN CRYO TRANSFER HOLDER |
Nominal Magnification | |
Calibrated Magnification | |
Source | FIELD EMISSION GUN |
Acceleration Voltage (kV) | 200 |
Imaging Details |
EM Software | ||
---|---|---|
Task | Software Package | Version |
IMAGE ACQUISITION | EM-Menu | 4.0.9.75 |
MODEL REFINEMENT | REFMAC | 5.8.0194 |
Image Processing | ||||
---|---|---|---|---|
CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
NONE |