9FN9 | pdb_00009fn9

Icosahedral Encapsulin with a closed pore state


ELECTRON MICROSCOPY
Sample
Cryo-EM structure of encapsulin shell containing engineered tandem dimer NfsB
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles308711
Reported Resolution (Å)2.81
Resolution MethodFSC 0.143 CUT-OFF
Other Details
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 TypeDIRECT ELECTRON APOLLO (4k x 4k)
Electron Dose (electrons/Å**2)60.2
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelJEOL CRYO ARM 300
Minimum Defocus (nm)500
Maximum Defocus (nm)1500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelJEOL CRYOSPECPORTER
Nominal Magnification80000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
IMAGE ACQUISITIONSerialEM
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION