ELECTRON MICROSCOPY

Sample

HKU1 spike with attached foldon domain and mutated furin-cleavage site

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument HOMEMADE PLUNGER
Cryogen Name ETHANE
Sample Vitrification Details 3 uL sample was applied to grid, blotted, and plunged into liquid ethane.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 31435
Reported Resolution (Å) 4.04
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 AB INITIO MODEL
Refinement Target EMRinger
Overall B Value 117
Fitting Procedure ?
Details Model building and refinement were conducted using a combination of software programs.
Data Acquisition
Detector Type GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å2) 57
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1000
Maximum Defocus (nm) 3500
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification 22500
Calibrated Magnification 22500
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION DoG Picker ?
PARTICLE SELECTION FindEM ?
IMAGE ACQUISITION Leginon ?
CTF CORRECTION CTFFIND3 ?
MODEL FITTING MODELLER ?
MODEL FITTING Rosetta 2015.19
MODEL FITTING Coot 0.8.2
INITIAL EULER ASSIGNMENT RELION 1.3
FINAL EULER ASSIGNMENT RELION 1.4b1
CLASSIFICATION IMAGIC ?
RECONSTRUCTION RELION 1.4b1
MODEL REFINEMENT Rosetta 2015.19
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?
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