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Cryo-EM structure of SARS-CoV-2 ORF3a
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 8.6355 f_angle_d 0.7083 f_chiral_restr 0.0464 f_bond_d 0.0053 f_plane_restr 0.0049
Sample SARS-CoV-2 protein 3A in lipid nanodiscs
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details 1 blot force
5 second wait time
3 second blot time
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 91218 Reported Resolution (Å) 2.08 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 Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON IV (4k x 4k) Electron Dose (electrons/Å**2) 50
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) Maximum Defocus (nm) Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version MODEL REFINEMENT PHENIX 1.18.2-3874-000
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION