9B9V
Cryo-EM structure of the ZBTB9 BTB domain filament
ELECTRON MICROSCOPY
Refinement
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 10.9598 |
f_angle_d | 0.6504 |
f_chiral_restr | 0.0391 |
f_plane_restr | 0.005 |
f_bond_d | 0.0029 |
Sample |
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ZBTB9 BTB domain filament |
Specimen Preparation | |
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Sample Aggregation State | FILAMENT |
Vitrification Instrument | LEICA EM GP |
Cryogen Name | ETHANE |
Sample Vitrification Details | Grids were vitrified using a Leica EM GP plunge freezer operated at 90% humidity and 10 C with 10 s pre-blot, 3 s blot, 3 s post-blot. |
3D Reconstruction | |
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Reconstruction Method | HELICAL |
Number of Particles | 147135 |
Reported Resolution (Å) | 8.1 |
Resolution Method | FSC 0.143 CUT-OFF |
Other Details | Asymmetric helical refinement followed by local refinement led to the final reconstruction. The helical symmetry values represent the angular rotation ... |
Refinement Type | |
Symmetry Type | HELICAL |
Axial Symmetry | C1 |
Axial Rise | 36.1 |
Angular Rotation | 101.9 |
Map-Model Fitting and Refinement | |||||
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Id | 1 | ||||
Refinement Space | REAL | ||||
Refinement Protocol | OTHER | ||||
Refinement Target | |||||
Overall B Value | 762 | ||||
Fitting Procedure | |||||
Details | Real-space refinement without local grid search |
Data Acquisition | |||||||||
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Detector Type | GATAN K3 (6k x 4k) | ||||||||
Electron Dose (electrons/Å**2) | 50.1 |
Imaging Experiment | 1 |
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Date of Experiment | |
Temperature (Kelvin) | |
Microscope Model | FEI TALOS ARCTICA |
Minimum Defocus (nm) | 800 |
Maximum Defocus (nm) | 2000 |
Minimum Tilt Angle (degrees) | |
Maximum Tilt Angle (degrees) | |
Nominal CS | 2.7 |
Imaging Mode | BRIGHT FIELD |
Specimen Holder Model | FEI TITAN KRIOS AUTOGRID HOLDER |
Nominal Magnification | 36000 |
Calibrated Magnification | |
Source | FIELD EMISSION GUN |
Acceleration Voltage (kV) | 200 |
Imaging Details |
EM Software | ||
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Task | Software Package | Version |
MODEL REFINEMENT | PHENIX | 1.21.1_5286 |
Image Processing | ||||
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CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
PHASE FLIPPING AND AMPLITUDE CORRECTION | 2022676 |