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Structure of SARS-CoV-2 3Q-2P full-length prefusion spike trimer (C3 symmetry)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6VXX
Sample SARS-CoV-2 full-length spike
Specimen Preparation 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 45374 Reported Resolution (Å) 3.6 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C3
Map-Model Fitting and Refinement Id 1 (6VXX) Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 50
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TALOS ARCTICA Minimum Defocus (nm) 500 Maximum Defocus (nm) 1600 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 Task Software Package Version PARTICLE SELECTION cryoSPARC 2 IMAGE ACQUISITION Leginon CTF CORRECTION Gctf 1.06 MODEL FITTING Coot 0.9 INITIAL EULER ASSIGNMENT cryoSPARC 2 FINAL EULER ASSIGNMENT cryoSPARC 2 CLASSIFICATION cryoSPARC 2 RECONSTRUCTION cryoSPARC 2 MODEL REFINEMENT Rosetta 2020.03.61102
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION