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Spiral hexamer of the substrate-free Lon protease with a Y224S mutation
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 10.8903 f_angle_d 1.2163 f_chiral_restr 0.067 f_plane_restr 0.0084 f_bond_d 0.0072
Sample Homo-Hexameric complex of Lon protease with ATPgammaS
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 612381 Reported Resolution (Å) 3.8 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 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) 73.8
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 1200 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 105000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION EPU 2.10 CTF CORRECTION cryoSPARC 3.2 MODEL FITTING UCSF ChimeraX 1.2 MODEL REFINEMENT PHENIX 1.18.2_3874 MODEL REFINEMENT Coot 0.9.6 INITIAL EULER ASSIGNMENT cryoSPARC 3.2 FINAL EULER ASSIGNMENT cryoSPARC 3.2 RECONSTRUCTION cryoSPARC 3.2
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING ONLY 4721627