7TBL

Composite structure of the human nuclear pore complex (NPC) cytoplasmic face generated with a 12A cryo-ET map of the purified HeLa cell NPC


ELECTRON MICROSCOPY
Sample
Nuclear pore complex from purified HeLa cell nuclear envelopes.
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification Instrument
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSUBTOMOGRAM AVERAGING
Number of Particles17368
Reported Resolution (Å)23
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
DetailsAuthors state that the clashes between nucleoporin structures result from docking nucleoporin structures from different species into low-resolution cr ...Authors state that the clashes between nucleoporin structures result from docking nucleoporin structures from different species into low-resolution cryo-ET maps of intact NPCs without flexible fitting.
Data Acquisition
Detector TypeGATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)4
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)1900
Maximum Defocus (nm)4000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION