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Cryo-EM structure of pyrococcus furiosus apoferritin in nanofluidic channels
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2X17
Sample 24-mer of pyrococcus furiosus apoferritin
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument LEICA PLUNGER Cryogen Name ETHANE Sample Vitrification Details The sample was filled into cryoChips through the cantilever and then transferred within ~10 seconds to the Leica plunger for freezing.
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 21238 Reported Resolution (Å) 3 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (2X17) Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 63
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) -1000 Maximum Defocus (nm) -2000 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 IMAGE ACQUISITION SerialEM CTF CORRECTION cryoSPARC 3.1 MODEL FITTING UCSF Chimera 1.13.1 FINAL EULER ASSIGNMENT cryoSPARC 3.1 CLASSIFICATION cryoSPARC 3.1 RECONSTRUCTION cryoSPARC 3.1 MODEL REFINEMENT PHENIX 1.13 MODEL REFINEMENT Coot 0.8.9.2
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION