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Cryo-EM structure of a prefusion stabilized SARS-CoV-2 Spike (D614N, R682S, R685G, A892P, A942P and V987P)(One up trimer)
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 8.585 f_angle_d 0.956 f_chiral_restr 0.093 f_bond_d 0.016 f_plane_restr 0.006
Sample S closed protein trimer
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 184000 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 Refinement Protocol OTHER Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 BIOQUANTUM (6k x 4k) Electron Dose (electrons/Å**2) 65
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 600 Maximum Defocus (nm) 2500 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 105000 Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION EPU 2.6 CTF CORRECTION CTFFIND 4.1.18 MODEL FITTING Coot 0.9 MODEL REFINEMENT PHENIX 1.18.261 FINAL EULER ASSIGNMENT RELION 3.1 beta CLASSIFICATION RELION 3.1 beta RECONSTRUCTION RELION 3.1 beta
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 1391000