ELECTRON MICROSCOPY

Sample

homotrimer of human STEAP4.

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details blot time 4seconds blot force 0
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 209075
Reported Resolution (Å) 3.80
Resolution Method FSC 0.143 CUT-OFF
Other Details performed by RELION.
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID
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/Å2) 45.5
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TALOS ARCTICA
Minimum Defocus (nm) 800
Maximum Defocus (nm) 3000
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 2.7
Imaging Mode BRIGHT FIELD
Specimen Holder Model ?
Nominal Magnification 130000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details 200 kV Talos Arctica at Utrecht University, the Netherlands.
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION RELION 2.1b1
IMAGE ACQUISITION EPU ?
CTF CORRECTION Gctf 1.06
INITIAL EULER ASSIGNMENT RELION 2.1b1
FINAL EULER ASSIGNMENT RELION 2.1b1
CLASSIFICATION RELION 2.1b1
RECONSTRUCTION RELION 2.1b1
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION performed in GCTF.