ELECTRON MICROSCOPY

Sample

Recombinant human TRPA1 ion channel

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK I
Cryogen Name ETHANE
Sample Vitrification Details Blot for 7 seconds before plunging into liquid ethane (FEI VITROBOT MARK I).
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 43585
Reported Resolution (Å) 4.24
Resolution Method FSC 0.143 CUT-OFF
Other Details ?
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 (4k x 4k)
Electron Dose (electrons/Å2) 21
Imaging Experiment
Date of Experiment 2014-07-18
Temprature (Kelvin)
Microscope Model FEI POLARA 300
Minimum Defocus (nm) 1500
Maximum Defocus (nm) 2800
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 2.0
Imaging Mode BRIGHT FIELD
Specimen Holder Model ?
Nominal Magnification 31000
Calibrated Magnification 31000
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details Gatan K2 Summit in super-resolution counting mode. Motion correction as described in Li et al. (2013) Nature Methods.
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
. Each particle