ELECTRON MICROSCOPY

Sample

Ebola virus - Mayinga, Zaire, 1976

Specimen Preperation
Sample Aggregation State HELICAL ARRAY
Vitrification Instrument FEI VITROBOT MARK II
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method SUBTOMOGRAM AVERAGING
Number of Particles 1
Reported Resolution (Å) 7.3
Resolution Method FSC 0.143 CUT-OFF
Other Details Local resolution was estimated using moving window FSC calculations. Resolution varies from 7.3 to 15.2 Angstroms.
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space ?
Refinement Protocol RIGID BODY FIT
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details Nucleoprotein model from Ebola virus nucleoprotein 1-450 was first rigid body fitted into the inner nucleoprotein densities. Densities were then subtracted, and VP24 pdb was then fit into remaining densities. All models were rigid-body fitted using UCSF Chimera.
Data Acquisition
Detector Type GATAN K2 QUANTUM (4k x 4k)
Electron Dose (electrons/Å2) 3.4
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 2000
Maximum Defocus (nm) 4500
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 81000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
VOLUME SELECTION Amira 4
VOLUME SELECTION TOM Toolbox ?
IMAGE ACQUISITION SerialEM ?
CTF CORRECTION CTFFIND 4
CTF CORRECTION CTFPHASEFLIP ?
MODEL FITTING UCSF Chimera ?
FINAL EULER ASSIGNMENT AV3 ?
RECONSTRUCTION AV3 ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING ONLY CTF amplitude correction was performed during the wedge-weighted subtomogram averaging step.
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