7SN3

ELECTRON MICROSCOPY

Sample

SARS-CoV-2 spike protein trimer in complex with human patient antibody C1C-A3 Fab

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details blotting time 4-6 seconds
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 344920
Reported Resolution (Å) 3.1
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 OTHER
Refinement Target correlation coefficient
Overall B Value 77.28
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å2) 56.6
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1000
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 60606
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details Cs-corrected, energy filtered
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION crYOLO 1.7.6
IMAGE ACQUISITION SerialEM 3.8
CTF CORRECTION CTFFIND 4.1
MODEL FITTING UCSF Chimera 1.13.1
MODEL REFINEMENT PHENIX 1.19-4080
INITIAL EULER ASSIGNMENT RELION 3.1.2
FINAL EULER ASSIGNMENT cryoSPARC 2.14.2
CLASSIFICATION cryoSPARC 2.14.2
RECONSTRUCTION cryoSPARC 2.14.2
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
NONE ?