ELECTRON MICROSCOPY

Sample

Influenza A virus

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument LEICA EM GP
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method SUBTOMOGRAM AVERAGING
Number of Particles 14767
Reported Resolution (Å) 8
Resolution Method FSC 0.143 CUT-OFF
Other Details ?
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 Multiple copies of the M1 NTD crystal structure (PDB:1ea3) were fitted as rigid bodies into the EM map to understand the relative arrangement of M1 monomers in the context of the matrix layer inside the virus
Data Acquisition
Detector Type GATAN K2 QUANTUM (4k x 4k)
Electron Dose (electrons/Å2) 2.9
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 2000
Maximum Defocus (nm) 4000
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 TOM ?
VOLUME SELECTION MATLAB ?
VOLUME SELECTION UCSF Chimera ?
IMAGE ACQUISITION SerialEM ?
CTF CORRECTION CTFFIND ?
CTF CORRECTION NOVACTF ?
MODEL FITTING UCSF Chimera ?
RECONSTRUCTION NOVACTF ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION CTF determination was performed using CTFFIND4. CTF correction was performed by 3D-CTF correction by CTF multiplication in NovaCTF.
Feedback Form
Name
Email
Institute
Feedback