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Structure of substrate engaged MIDN-bound human 26S proteasome, EB-MIDN (Composite map)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6MSE
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 6.874 f_angle_d 0.505 f_chiral_restr 0.039 f_plane_restr 0.004 f_bond_d 0.003
Sample Structure of MIDN-bound human 26S proteasome in substrate engaged state EB_MIDN
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 232000 Reported Resolution (Å) 2.8 Resolution Method FSC 0.143 CUT-OFF Other Details Composite map generated from homogenous refinement cryo-EM of consus map and local refined focussed maps Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (6mse) Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 BIOQUANTUM (6k x 4k) Electron Dose (electrons/Å**2) 50
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 1100 Maximum Defocus (nm) 2700 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 81000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version MODEL REFINEMENT PHENIX 1.21.1_5286:
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 939289