ELECTRON MICROSCOPY

Sample

apo-form of the 8-subunit RNA polymerase from African Swine Fever Virus

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 352192
Reported Resolution (Å) 2.92
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 FLEXIBLE FIT
Refinement Target cross-correlation coefficient
Overall B Value 84.5995
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K3 (6k x 4k)
Electron Dose (electrons/Å2) 48.152
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1500
Maximum Defocus (nm) 2700
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 Topaz ?
IMAGE ACQUISITION EPU 2
CTF CORRECTION CTFFIND 4
MODEL FITTING PHENIX 1.20
INITIAL EULER ASSIGNMENT cryoSPARC 3
INITIAL EULER ASSIGNMENT RELION 4
FINAL EULER ASSIGNMENT RELION 4
RECONSTRUCTION RELION 4
MODEL REFINEMENT PHENIX 1.20
MODEL REFINEMENT Coot 0.9.8.7
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?