ELECTRON MICROSCOPY

Sample

alpha-synuclein DeltaN7 amyloid fibrils

Specimen Preperation
Sample Aggregation State FILAMENT
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method HELICAL
Number of Particles 12348
Reported Resolution (Å) 2.5
Resolution Method FSC 0.143 CUT-OFF
Other Details ?
Refinement Type
Symmetry Type HELICAL
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol RIGID BODY FIT
Refinement Target cross-correlation coefficient
Overall B Value 106
Fitting Procedure ?
Details see methods, rigid body docked chain of PDB: 6osl, manual fitting in coot, real-space refine in phenix
Data Acquisition
Detector Type FEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å2) 45
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1400
Maximum Defocus (nm) 2600
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 130000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION Topaz ?
IMAGE ACQUISITION EPU 3.0
CTF CORRECTION CTFFIND 4.16
MODEL FITTING Coot 0.9.8
INITIAL EULER ASSIGNMENT RELION 4.0
FINAL EULER ASSIGNMENT RELION 4.0
CLASSIFICATION RELION 4.0
RECONSTRUCTION RELION 4.0
MODEL REFINEMENT PHENIX 1.17.1_3660:
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?
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