ELECTRON MICROSCOPY

Sample

MAVS filament

Specimen Preperation
Sample Aggregation State FILAMENT
Vitrification Instrument FEI VITROBOT MARK I
Cryogen Name NITROGEN
Sample Vitrification Details Plunged in liquid nitrogen (FEI VITROBOT MARK I)
3D Reconstruction
Reconstruction Method HELICAL
Number of Particles ?
Reported Resolution (Å) 3.64
Resolution Method FSC 0.5 CUT-OFF
Other Details The electron density map of the filament was reconstructed using a helical geometrically constrained reconstruction approach (Helicon).
Refinement Type
Symmetry Type HELICAL
Map-Model Fitting and Refinement
ID 1
Refinement Space RECIPROCAL
Refinement Protocol RIGID BODY FIT
Refinement Target Cross-correlation coefficient
Overall B Value 136.08
Fitting Procedure ?
Details METHOD--local refinement REFINEMENT PROTOCOL--rigid body with TLS
Data Acquisition
Detector Type GATAN K2 (4k x 4k)
Electron Dose (electrons/Å2) 31
Imaging Experiment
Date of Experiment 2013-08-10
Temprature (Kelvin)
Microscope Model FEI TECNAI F20
Minimum Defocus (nm) ?
Maximum Defocus (nm) ?
Minimum Tilt Angle (degrees) 0.0
Maximum Tilt Angle (degrees) 0.0
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model GATAN LIQUID NITROGEN
Nominal Magnification 29000
Calibrated Magnification 40410
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details Movies were recorded at liquid nitrogen temperature with a K2 Summit direct detector device camera operated in super-resolution mode with dose-fractionation.
Imaging Experiment
Task Software Package Version
MODEL FITTING PHENIX ?
RECONSTRUCTION Helicon ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details