☰ Navigation Tabs
High-resolution cryo-EM structure of Tobacco Mosaic Virus
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2TMV
Sample Tobacco Mosaic Virus
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument HOMEMADE PLUNGER Cryogen Name ETHANE Sample Vitrification Details The sample was plunge-frozen at 4C.
3D Reconstruction Reconstruction Method HELICAL Number of Particles Reported Resolution (Å) 4.4 Resolution Method Other Details SIRT algorithm implemented in the SPIDER processing package (command BP RP) Refinement Type Symmetry Type HELICAL
Map-Model Fitting and Refinement Id 1 (2TMV) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Minimization of least-square difference between observed and calculated
densities Overall B Value Fitting Procedure Details METHOD--Torsion angle molecular dynamics REFINEMENT PROTOCOL--Real-space
molecular dynamics
Data Acquisition Detector Type KODAK SO-163 FILM Electron Dose (electrons/Å**2) 15
Imaging Experiment 1 Date of Experiment 2005-11-22 Temperature (Kelvin) 93 Microscope Model FEI TECNAI F30 Minimum Defocus (nm) 1.5 Maximum Defocus (nm) 4 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification 59000 Calibrated Magnification 60190 Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version MODEL FITTING X-PLOR RECONSTRUCTION SPIDER
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details Phase correction and amplitude weighting adapted from Grigorieff 1998(after determination of CTF and specimen tilt)