8U51 | pdb_00008u51

Klebsiella pneumoniae SUMO-loaded encapsulin shell

ELECTRON MICROSCOPY

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Sample
Klebsiella pneumoniae SUMO-loaded encapsulin shell
Sample Components
Klebsiella pneumoniae family 1 encapsulin shell
SUMO-targeting peptide fusion protein

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument	FEI VITROBOT MARK IV
Cryogen Name	ETHANE
Sample Vitrification Details	Blot force: 20 Blot time: 4 seconds

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	101111
Reported Resolution (Å)	2.41
Resolution Method	FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type	POINT
Point Symmetry	I

Map-Model Fitting and Refinement
Id	1
Refinement Space	REAL
Refinement Protocol	FLEXIBLE FIT
Refinement Target	Cross-correlation coefficient
Overall B Value	93.8
Fitting Procedure
Details	Initial fitting was performed using ChimeraX v1.2.5. The model was then manually refined using Coot v9.8.1 followed by real-space refinement using Phenix v1.20.1-4487-000.

Data Acquisition
Detector Type	GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)	39.58

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	FEI TALOS ARCTICA
Minimum Defocus (nm)	800
Maximum Defocus (nm)	1800
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS	2.7
Imaging Mode	BRIGHT FIELD
Specimen Holder Model
Nominal Magnification	45000
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	200
Imaging Details

EM Software
Task	Software Package	Version
PARTICLE SELECTION	cryoSPARC	4.2.1
IMAGE ACQUISITION	Leginon
CTF CORRECTION	cryoSPARC	4.2.1
MODEL FITTING	UCSF ChimeraX	1.2.5
MODEL FITTING	Coot	0.9.8
INITIAL EULER ASSIGNMENT	cryoSPARC	4.2.1
FINAL EULER ASSIGNMENT	cryoSPARC	4.2.1
RECONSTRUCTION	cryoSPARC	4.2.1
MODEL REFINEMENT	PHENIX	1.20.1-4487-000

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION		115682