ELECTRON MICROSCOPY

Sample

Native 24-mer core of Oxoglutarate Dehydrogenase Complex

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details For plunging, blot force 0 and blotting time of 4 sec were applied.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 69028
Reported Resolution (Å) 3.35
Resolution Method FSC 0.143 CUT-OFF
Other Details Particles were symmetry expanded for the final reconstruction, then local reconstruction was performed without symmetry application.
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol FLEXIBLE FIT
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details Initial fitting was performed in ChimeraX v1.2, then real-space refined in PHENIX v1.19
Data Acquisition
Detector Type FEI FALCON III (4k x 4k)
Electron Dose (electrons/Å2) 30.0
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model TFS GLACIOS
Minimum Defocus (nm) 800
Maximum Defocus (nm) 2000
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 2.7
Imaging Mode BRIGHT FIELD
Specimen Holder Model OTHER
Nominal Magnification 92000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION cryoSPARC 3.1
IMAGE ACQUISITION EPU 2.6
CTF CORRECTION cryoSPARC 3.1
MODEL FITTING UCSF ChimeraX 1.2
MODEL REFINEMENT PHENIX 1.19
INITIAL EULER ASSIGNMENT cryoSPARC 3.1
FINAL EULER ASSIGNMENT cryoSPARC 3.1
CLASSIFICATION cryoSPARC 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 ?