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SARS-CoV-2 spike protein complexed with two nanobodies
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 8.121 f_angle_d 0.559 f_chiral_restr 0.044 f_plane_restr 0.005 f_bond_d 0.003
Sample SARS-CoV-2 spike protein trimer with two spike protein-targeting nanobodies attached on RBD domains.
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details Wait time 20 seconds and blot time 3 seconds
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 492196 Reported Resolution (Å) 3.73 Resolution Method FSC 0.5 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Correlation coefficient Overall B Value 102 Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 63.81
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 600 Maximum Defocus (nm) 2600 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification 81000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version CTF CORRECTION cryoSPARC 3.3.1 MODEL FITTING Coot FINAL EULER ASSIGNMENT cryoSPARC 3.3.1 CLASSIFICATION cryoSPARC 3.3.1 RECONSTRUCTION cryoSPARC 3.3.1 MODEL REFINEMENT PHENIX
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 1725357