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Model of the Ebola virus nucleocapsid subunit from recombinant virus-like particles
ELECTRON MICROSCOPY
Sample
Ebola virus - Mayinga, Zaire, 1976
Specimen Preparation
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
Point Symmetry
C1
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 subtr ...
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/Å**2)
3.4
Imaging Experiment
1
Date of Experiment
Temperature (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
EM Software
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.