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Cryo-EM structure of the ribosome-tunnel occluding hibernation factor bound to the Mycobacterium tuberculosis C- 50S ribosomal subunit
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7MT7
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 15.106 f_angle_d 0.831 f_chiral_restr 0.048 f_plane_restr 0.008 f_bond_d 0.007
Sample Mycobacterium tuberculosis C- 50S ribosomal subunit bound to the ribosomal tunnel occlusion factor-RTOF
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 257214 Reported Resolution (Å) 2.39 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (7MT7) Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Cross-correlation coefficient Overall B Value 60.5 Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 50.75
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 800 Maximum Defocus (nm) 2500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 0.001 Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 64000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC v4.4.0 IMAGE ACQUISITION Leginon CTF CORRECTION cryoSPARC v4.4.0 FINAL EULER ASSIGNMENT cryoSPARC v4.4.0 CLASSIFICATION cryoSPARC v4.4.0 RECONSTRUCTION cryoSPARC v4.4.0 MODEL REFINEMENT PHENIX 1.20.1_4487:
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 5471811