5IJN

Composite structure of the inner ring of the human nuclear pore complex (32 copies of Nup205)

ELECTRON MICROSCOPY

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Sample
Nuclear envelope

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument
Cryogen Name	ETHANE-PROPANE
Sample Vitrification Details

3D Reconstruction
Reconstruction Method	SUBTOMOGRAM AVERAGING
Number of Particles	8400
Reported Resolution (Å)	21.4
Resolution Method	FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type	POINT
Point Symmetry	C1
Space Group Name
Length a	1
Length b	1
Length c	1
Angle Alpha	90
Angle Beta	90
Angle Gamma	90

Map-Model Fitting and Refinement
Id	1
Refinement Space
Refinement Protocol	RIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
Details	this pdb structure includes unambiguous fits only, .i.e. excluding the middle domain of nup205. the structure with that domain can be obtained from authors. protein-protein interfaces shall not be interpreted at residue-level resolution. this pdb structure contains eight models. the model 1 corresponds to the composite structure reported in the journal article associated with this entry. models 2-8 corresponds to the seven best scoring models automatically generated as described in the article.

Data Acquisition
Detector Type	GATAN K2 QUANTUM (4k x 4k)
Electron Dose (electrons/Å**2)	3

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	FEI TITAN KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging Mode	BRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details

EM Software
Task	Software Package	Version
IMAGE ACQUISITION	SerialEM
MODEL FITTING	UCSF Chimera	1.9
MODEL FITTING	IMP	g0552c9c

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
PHASE FLIPPING ONLY