6NT3

Cryo-EM structure of a human-cockroach hybrid Nav channel.


ELECTRON MICROSCOPY
Sample
NavPas-VSD4
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles150583
Reported Resolution (Å)3.4
Resolution MethodFSC 0.143 CUT-OFF
Other DetailsNo information from spatial frequencies higher than 1/5A were ever used during refinement.
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)40
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcisTEM
IMAGE ACQUISITIONSerialEM
CTF CORRECTIONcisTEM
INITIAL EULER ASSIGNMENTcisTEM
FINAL EULER ASSIGNMENTcisTEM
CLASSIFICATIONcisTEM
RECONSTRUCTIONcisTEM
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTIONAutomated picking using a soft-edged disc as a template yielded 591739 candidate coordinates. 2D classification led to the selection of 334055 particles for further analysis.