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An Information Portal to 105097 Biological Macromolecular Structures

ELECTRON MICROSCOPY
Materials and Methods page
1M4X
  •   EM Refinement Details Hide
    3D Reconstruction
    Reconstruction Method polar fourier transform.
     
    EM Map-Model Fitting & Refinement
    Refinement Space REAL
    Refinement Protocol rigid body
    Refinement Target -rigid body refinement in real space against Lagrangian filtered EM density, using the program SITUS.Each molecule in the icosahedral ASU was refined separately.
    Fitting Procedure 6d search, separately for each symmetry related molecule in the icosahedral ASU.
     
    EM Image Reconstruction Statistics
    Effective Resolution 28.0
    CTF Correction Method inverse of CTF was applied to images
    Other Details used Tim Baker's programs PFT, EM3DR, etc.
     
    Electron Microscope Sample
    Sample pH 7.0
    Sample Support Details electron microscopy grid - in vitrious ice
    Sample Vitrification Details frozen in liquid propane
    Sample Aggregation State PARTICLE
    Name of Sample PBCV-1 virus capsid
    Sample Details T=169d quasi-symmetric icosahedron.
     
    Data Acquisition
    Temperature (Kelvin) 100.0
    Microscope Model FEI/PHILIPS CM200FEG/ST
    Detector Type KODAK SO163 FILM
    Minimum Tilt Angle (degrees) 0.0
    Maximum Tilt Angle (degrees) 0.0
    Source FIELD EMISSION GUN
    Acceleration Voltage (KV) 200
     
    Biomolecule
    COM ID 1
    Name capsid protein
    Other Details icosahedral capsid with T=169d quasi-symmetry.
     
    Virus Particulars
    COM ID 1
    Virus Host Category ALGAE
    Virus Host Species paramecium bursaria chlorella
    Virus Type ALGAE