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Conformation of methylated GGQ in the peptidyl transferase center during translation termination (PTC region)
Sample nonstop ribosomal complex with ArfA/RF2 Sample Components 50S subunit P-site tRNA fMet Peptide chain release factor 2 23S rRNA 50S ribosomal protein L2 50S ribosomal protein L3 50S ribosomal protein L16 50S ribosomal protein L27
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details Grids were blotted for 3.5 seconds.
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 143372 Reported Resolution (Å) 3.1 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 Refinement Space RECIPROCAL Refinement Protocol FLEXIBLE FIT Refinement Target Average FSC Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 20
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model JEOL 3200FS Minimum Defocus (nm) Maximum Defocus (nm) Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification Calibrated Magnification 83822 Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION RELION 1.4 IMAGE ACQUISITION Leginon CTF CORRECTION CTFFIND 4 MODEL FITTING UCSF Chimera 1.11 MODEL FITTING Coot 0.8.3 MODEL REFINEMENT REFMAC 5.8 INITIAL EULER ASSIGNMENT RELION 2 FINAL EULER ASSIGNMENT RELION 2 CLASSIFICATION RELION 2 RECONSTRUCTION RELION 2
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION