ELECTRON MICROSCOPY

Sample

ZBTB5 BTB domain filament

Specimen Preperation
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
Reconstruction Method SINGLE PARTICLE
Number of Particles 1352367
Reported Resolution (Å) 3.7
Resolution Method FSC 0.143 CUT-OFF
Other Details ?
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol OTHER
Refinement Target ?
Overall B Value 194
Fitting Procedure ?
Details Real-space refinement without local grid search
Data Acquisition
Detector Type GATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å2) 50.7
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1200
Maximum Defocus (nm) 2400
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 105000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION cryoSPARC 4.4.1
IMAGE ACQUISITION SerialEM 4.1b
CTF CORRECTION cryoSPARC 4.4.1
MODEL FITTING UCSF ChimeraX 1.6.1
MODEL FITTING ISOLDE 1.6.0
INITIAL EULER ASSIGNMENT cryoSPARC 4.4.1
FINAL EULER ASSIGNMENT cryoSPARC 4.4.1
RECONSTRUCTION cryoSPARC 4.4.1
MODEL REFINEMENT PHENIX 1.19.2-4158
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?