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2.07 Angstrom CryoEM Structure of Heavy Chain Apoferritin from Mus Musculus From 200kV Microscope
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7A4M
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 3.7663 f_angle_d 0.5071 f_chiral_restr 0.0354 f_plane_restr 0.0033 f_bond_d 0.0026
Sample FERRITIN HEAVY CHAIN
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 800000 Reported Resolution (Å) 2.07 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (7a4m) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target OpenMM + Map Gradients Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 63
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS TALOS Minimum Defocus (nm) 300 Maximum Defocus (nm) 1500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version MODEL FITTING UCSF Chimera 1.3 MODEL REFINEMENT UCSF ChimeraX 1.6
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION