8C1V

SARS-CoV-2 S-trimer (3 RBDs up) bound to TriSb92, fitted into cryo-EM map


ELECTRON MICROSCOPY
Sample
SARS-CoV-2 Spike in open conformation with bound sherpabody
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification Instrument
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles150665
Reported Resolution (Å)2.9
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1
Refinement Space
Refinement ProtocolRIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
DetailsInitial fitting of non-RBD regions of the S-trimer, RBDs and Sb92s was done in ChimeraX, and then Coot was used to adjust the linker regions between R ...Initial fitting of non-RBD regions of the S-trimer, RBDs and Sb92s was done in ChimeraX, and then Coot was used to adjust the linker regions between RBDs and S.
Data Acquisition
Detector TypeGATAN K2 QUANTUM (4k x 4k)
Electron Dose (electrons/Å**2)1.375
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)1500
Maximum Defocus (nm)3000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
MODEL FITTINGUCSF ChimeraX
RECONSTRUCTIONcryoSPARC4.0.0
MODEL REFINEMENTCoot
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION