ELECTRON MICROSCOPY

Sample

Pre-fusion Stabilized HERV-K Envelope Trimer

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 81000
Reported Resolution (Å) 2.24
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 ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K3 (6k x 4k)
Electron Dose (electrons/Å2) 50
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model TFS KRIOS
Minimum Defocus (nm) 800
Maximum Defocus (nm) 2000
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 2.7
Imaging Mode OTHER
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification ?
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION cryoSPARC 4.6.0
IMAGE ACQUISITION EPU ?
CTF CORRECTION cryoSPARC 4.6.0
MODEL FITTING UCSF ChimeraX 1.7.1
MODEL FITTING Coot 0.9.8.93
MODEL REFINEMENT PHENIX 1.21.1_5286
INITIAL EULER ASSIGNMENT cryoSPARC 4.6.0
FINAL EULER ASSIGNMENT cryoSPARC 4.6.0
CLASSIFICATION cryoSPARC 46.0
RECONSTRUCTION cryoSPARC 4.6.0
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
NONE ?
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