ELECTRON MICROSCOPY

Sample

GPI anchorless underglycosylated 22L prion fibril

Specimen Preperation
Sample Aggregation State FILAMENT
Vitrification Instrument LEICA EM GP
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method HELICAL
Number of Particles 16409
Reported Resolution (Å) 3.2
Resolution Method FSC 0.143 CUT-OFF
Other Details Pixel size was corrected in post processing from 1.1 A/pix to 1.045 A/pix to correct an error in the reported magnification pixel size.
Refinement Type
Symmetry Type HELICAL
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol AB INITIO MODEL
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å2) 57
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 500
Maximum Defocus (nm) 3000
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification 81000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
IMAGE ACQUISITION SerialEM ?
CTF CORRECTION CTFFIND 4.1
MODEL FITTING Coot ?
MODEL REFINEMENT PHENIX ?
MODEL REFINEMENT REFMAC ?
INITIAL EULER ASSIGNMENT RELION 4.0 beta
FINAL EULER ASSIGNMENT RELION 4.0 beta
CLASSIFICATION RELION 4.0 beta
RECONSTRUCTION RELION 4.0 beta
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?