ELECTRON MICROSCOPY

Sample

48nm-repeat of microtubule doublet

Specimen Preperation
Sample Aggregation State FILAMENT
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details Blot force 3 for 5 seconds
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 60386
Reported Resolution (Å) 4.3
Resolution Method FSC 0.143 CUT-OFF
Other Details Relion Gold Standard Refinement
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol AB INITIO MODEL
Refinement Target ?
Overall B Value 190
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type FEI FALCON II (4k x 4k)
Electron Dose (electrons/Å2) 45
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1200
Maximum Defocus (nm) 3800
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 59000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION EMAN2 2.00
IMAGE ACQUISITION EPU 1.6
CTF CORRECTION RELION 3.0
MODEL FITTING UCSF Chimera 1.4
INITIAL EULER ASSIGNMENT SPIDER 19.02
FINAL EULER ASSIGNMENT RELION 3.0
FINAL EULER ASSIGNMENT FREALIGN 9.03
CLASSIFICATION FREALIGN 9.03
RECONSTRUCTION RELION 3.0
MODEL REFINEMENT PHENIX 1.14
MODEL REFINEMENT Coot 0.8.7
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?