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Cryo-EM structure of the 50S ribosomal subunit at 2.83 Angstroms with modeled GBC SecM peptide
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3JBU
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 17.692 f_angle_d 1.098 f_chiral_restr 0.062 f_bond_d 0.013 f_plane_restr 0.007
Sample 50S ribosomal + GBC SecM peptide complex Sample Components GBC SecM peptide 50 ribosomal subunit
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 196254 Reported Resolution (Å) 2.83 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (3JBU) Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 1.66
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) Maximum Defocus (nm) 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 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION SerialEM MODEL FITTING Coot MODEL REFINEMENT PHENIX
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION