ELECTRON MICROSCOPY

Sample

Synthetic human claudin-4 complex with Clostridium perfringens enterotoxin C-terminal domain, sFab COP-2, and nanobody against COP-2

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument LEICA EM GP
Cryogen Name ETHANE
Sample Vitrification Details 3.5 microL of complex was applied onto grids and blotted for 3 s at 4 degrees C under 100 percent humidity then plunge frozen into liquid ethane cooled by liquid nitrogen.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 21296
Reported Resolution (Å) 4.16
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 FLEXIBLE FIT
Refinement Target ?
Overall B Value 322
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type FEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å2) 49.4
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model TFS GLACIOS
Minimum Defocus (nm) 400
Maximum Defocus (nm) 2000
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification 120000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION cryoSPARC 4.4.1
IMAGE ACQUISITION EPU ?
CTF CORRECTION cryoSPARC 4.4.1
MODEL FITTING PHENIX 1.20.1-4487
MODEL REFINEMENT PHENIX 1.20.1-4487
INITIAL EULER ASSIGNMENT cryoSPARC 4.4.1
FINAL EULER ASSIGNMENT cryoSPARC 4.4.1
CLASSIFICATION cryoSPARC 4.4.1
RECONSTRUCTION cryoSPARC 4.4.1
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?
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