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Cryo-EM structures of ribosomal 80S complexes with termination factors and cricket paralysis virus IRES reveal the IRES in the translocated state
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4CXD
Sample RIBOSOMAL 80S TERMINATION COMPLEX WITH CRPV IRES- RNA, ERF1 AND ERF3
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK II Cryogen Name ETHANE Sample Vitrification Details LIQUID ETHANE
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 64902 Reported Resolution (Å) 9 Resolution Method Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (4CXD) Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value Fitting Procedure Details METHOD--RIGID BODY
Data Acquisition Detector Type TVIPS TEMCAM-F416 (4k x 4k) Electron Dose (electrons/Å**2) 20
Imaging Experiment 1 Date of Experiment 2012-11-05 Temperature (Kelvin) Microscope Model FEI TECNAI F20 Minimum Defocus (nm) 2000 Maximum Defocus (nm) 5000 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification 115000 Calibrated Magnification 194805 Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details MINIMAL DOSE SYSTEM
EM Software Task Software Package Version MODEL FITTING UCSF Chimera RECONSTRUCTION SPARX RECONSTRUCTION SPIDER
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details DEFOCUS GROUPS