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E. coli 70S ribosome, trapped conformational excited state of SSU-h44 apical loop, with A- and P-site tRNA
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7K00
Refinement RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_6_deg 10.201 r_dihedral_angle_3_deg 10.009 r_dihedral_angle_1_deg 5.421 r_lrange_it 5.212 r_lrange_other 5.212 r_dihedral_angle_2_deg 3.319 r_mcangle_it 3.178 r_mcangle_other 3.178 r_scangle_it 2.744 r_scangle_other 2.744
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_6_deg 10.201 r_dihedral_angle_3_deg 10.009 r_dihedral_angle_1_deg 5.421 r_lrange_it 5.212 r_lrange_other 5.212 r_dihedral_angle_2_deg 3.319 r_mcangle_it 3.178 r_mcangle_other 3.178 r_scangle_it 2.744 r_scangle_other 2.744 r_mcbond_it 1.769 r_mcbond_other 1.769 r_scbond_it 1.563 r_scbond_other 1.563 r_angle_refined_deg 0.769 r_dihedral_angle_other_2_deg 0.374 r_angle_other_deg 0.281 r_nbtor_refined 0.221 r_symmetry_nbd_other 0.177 r_nbd_refined 0.141 r_xyhbond_nbd_refined 0.12 r_symmetry_nbtor_other 0.073 r_symmetry_xyhbond_nbd_other 0.073 r_chiral_restr 0.03 r_gen_planes_refined 0.004 r_bond_refined_d 0.003 r_gen_planes_other 0.001 r_bond_other_d
Sample E. coli 70S ribosome
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 80169 Reported Resolution (Å) 2.1 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (7K00) Refinement Space RECIPROCAL Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 BIOQUANTUM (6k x 4k) Electron Dose (electrons/Å**2) 51.5
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 300 Maximum Defocus (nm) 2000 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification 165000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC 4.5.1 IMAGE ACQUISITION EPU CTF CORRECTION cryoSPARC 4.5.1 MODEL FITTING UCSF ChimeraX 1.8 MODEL REFINEMENT REFMAC 5.8.0430 INITIAL EULER ASSIGNMENT cryoSPARC 4.5.1 FINAL EULER ASSIGNMENT cryoSPARC 4.6.2 CLASSIFICATION cryoSPARC 4.5.1 RECONSTRUCTION cryoSPARC 4.6.2
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION