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Cryo-EM structure of mouse heavy-chain apoferritin at 1.24 A on CRYO ARM 200 II
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7A4M
Sample homo 24-mer mouse heavy-chain apoferritin
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details 3 ul sample, 20 s blot time
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 615248 Reported Resolution (Å) 1.24 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (7A4M) Refinement Space RECIPROCAL Refinement Protocol OTHER Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 53.4
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model JEOL CRYO ARM 200 Minimum Defocus (nm) 200 Maximum Defocus (nm) 800 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 1.5 Imaging Mode BRIGHT FIELD Specimen Holder Model JEOL CRYOSPECPORTER Nominal Magnification 150000 Calibrated Magnification 163612 Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC 4.5 IMAGE ACQUISITION SerialEM 4.0 CTF CORRECTION cryoSPARC 4.5 MODEL FITTING Coot MODEL REFINEMENT Servalcat MODEL REFINEMENT Coot INITIAL EULER ASSIGNMENT cryoSPARC 4.5 FINAL EULER ASSIGNMENT cryoSPARC 4.5 CLASSIFICATION cryoSPARC 4.5 RECONSTRUCTION cryoSPARC 4.5
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 652257