ELECTRON MICROSCOPY

Sample

BA-2.86 variant SARS-CoV2 S protein complexed with angiotensin converting enzyme 2 (ACE2)

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument ?
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 15883
Reported Resolution (Å) 3.7
Resolution Method FSC 0.143 CUT-OFF
Other Details CryoSPARC.
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 Phenix real space refinement with manual checks using coot.
Data Acquisition
Detector Type FEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å2) 50
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 800
Maximum Defocus (nm) 2600
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 165000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION cryoSPARC v.4.3.1
IMAGE ACQUISITION EPU ?
CTF CORRECTION cryoSPARC v.4.3.1
MODEL FITTING Coot ?
MODEL FITTING PHENIX ?
INITIAL EULER ASSIGNMENT cryoSPARC ?
FINAL EULER ASSIGNMENT cryoSPARC v.4.3.1
CLASSIFICATION cryoSPARC v.4.3.1
RECONSTRUCTION cryoSPARC v.4.3.1
MODEL REFINEMENT PHENIX ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION Determined using cryoSPARC live patch CTF correction.
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