ELECTRON MICROSCOPY

Sample

Human Coronavirus HKU1 Haemagglutinin-Esterase

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details Blot force = 1 Blot time = 5.5 seconds
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 119717
Reported Resolution (Å) 3.39
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 RIGID BODY FIT
Refinement Target Correlation coefficient
Overall B Value ?
Fitting Procedure ?
Details A homology model of HCOV-HKU1 HE (uniprot ID: Q5MQD1) was generated using the phyre2 server
Data Acquisition
Detector Type OTHER
Electron Dose (electrons/Å2) 40
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model TFS 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 96000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details Titan Krios G4 was used with fringe-free imaging and aberration-free image shift.
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION RELION 3.0.1
IMAGE ACQUISITION EPU 2.5
CTF CORRECTION Gctf 1.18
MODEL FITTING UCSF Chimera 1.12
INITIAL EULER ASSIGNMENT RELION 3.1
FINAL EULER ASSIGNMENT RELION 3.1
CLASSIFICATION RELION 3.0.1
RECONSTRUCTION RELION 3.1
MODEL REFINEMENT PHENIX 1.13
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?