6H3N

Structure of VgrG1 in the Type VI secretion VgrG1-Tse6-EF-Tu complex embedded in lipid nanodiscs


ELECTRON MICROSCOPY
Sample
The type VI secretion VgrG1-Tse6-EF-Tu complex embedded in lipid nanodiscs
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK III
Cryogen NameETHANE
Sample Vitrification Details0.01 % Tween-20 was added to improve ice quality.
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles72000
Reported Resolution (Å)3.25
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC3
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)91
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)500
Maximum Defocus (nm)3200
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS0.01
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification59000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
IMAGE ACQUISITIONEPU1.8
RECONSTRUCTIONSPHIRE
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION