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Cryo- EM structure of Mycobacterium smegmatis 30S ribosomal subunit (body 2) of 70S ribosome, E- tRNA and RafH.
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 8WHX
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 14.483 f_angle_d 0.582 f_chiral_restr 0.035 f_plane_restr 0.005 f_bond_d 0.003
Sample 70S Ribosome + RafH protein Sample Components 70S Ribosome RafH
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 44299 Reported Resolution (Å) 3.5 Resolution Method OTHER Other Details Ad-hoc low pass filter, 3.5 Angstrom Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (8WHX) Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON III (4k x 4k) Electron Dose (electrons/Å**2) 1.34
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 1800 Maximum Defocus (nm) 3000 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 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 PARTICLE SELECTION RELION 3.1.4 IMAGE ACQUISITION EPU CTF CORRECTION RELION 3.1.4 CTF CORRECTION CTFFIND ctffind/4.1.14 MODEL FITTING Coot v.0.9.3 MODEL REFINEMENT PHENIX INITIAL EULER ASSIGNMENT RELION 3.1.4 FINAL EULER ASSIGNMENT RELION 3.1.4 CLASSIFICATION RELION 3.1.4 RECONSTRUCTION RELION 3.1.4
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details NONE CTF correction in Relion3.1.4