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Apoferritin structure at 1.36 angstrom resolution determined from a 300 kV Titan Krios G3i electron microscope with Falcon4 detector
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3AJO
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 500643 Reported Resolution (Å) 1.36 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry O
Map-Model Fitting and Refinement Id 1 (3AJO) Refinement Space Refinement Protocol OTHER Refinement Target CC Overall B Value Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON IV (4k x 4k) Electron Dose (electrons/Å**2) 40
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) Maximum Defocus (nm) 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 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION EMAN2 2.3 IMAGE ACQUISITION EPU 2.7 CTF CORRECTION CTFFIND 4 RECONSTRUCTION RELION 3.1
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 707350