ELECTRON MICROSCOPY

Sample

Human 26S proteasome

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details incubation time= 3 s blotting time= 2.5 s
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 153646
Reported Resolution (Å) 3.4
Resolution Method FSC 0.143 CUT-OFF
Other Details ?
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol OTHER
Refinement Target 0.8
Overall B Value 88
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K3 (6k x 4k)
Electron Dose (electrons/Å2) 49
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1200
Maximum Defocus (nm) 1800
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification 70000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION Topaz ?
IMAGE ACQUISITION EPU ?
IMAGE ACQUISITION RELION 3.1
IMAGE ACQUISITION cryoSPARC 3.1
CTF CORRECTION CTFFIND 4.1
MODEL FITTING UCSF ChimeraX 1.3
MODEL REFINEMENT PHENIX 1.19.2
MODEL REFINEMENT Coot 0.9.4.1 EL
INITIAL EULER ASSIGNMENT RELION 3.1
FINAL EULER ASSIGNMENT cryoSPARC 3.1
CLASSIFICATION RELION 3.1
RECONSTRUCTION cryoSPARC 3.1
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?