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CryoEM structure of a GroEL7-GroES7 cage with encapsulated ordered substrate MetK in the presence of ADP-BeFx
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1SX3 experimental model PDB 5OPX
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 5.9769 f_angle_d 0.4885 f_chiral_restr 0.0414 f_plane_restr 0.0032 f_bond_d 0.0021
Sample GroEL14-GroES14-MetK2
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE-PROPANE Sample Vitrification Details 5.9 mM n-octyl-beta-D-glucopyranoside were added before vitrification
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 454545 Reported Resolution (Å) 3.04 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (1SX3, 5OPX) Refinement Space REAL Refinement Protocol AB INITIO MODEL Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 55
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 500 Maximum Defocus (nm) 3000 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 22500 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION SerialEM CTF CORRECTION CTFFIND MODEL FITTING UCSF Chimera 1.13.1 MODEL FITTING Coot 0.9.4 MODEL REFINEMENT PHENIX 1.19.2 INITIAL EULER ASSIGNMENT cryoSPARC 3.1 FINAL EULER ASSIGNMENT cryoSPARC 3.1 CLASSIFICATION cryoSPARC 3.1 RECONSTRUCTION cryoSPARC
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION