4CYL

Tomographic subvolume average of EFF-1 fusogen on extracellular vesicles

ELECTRON MICROSCOPY

Sample
EPITHELIAL FUSION FAILURE 1 (EFF-1) ISOFORM A ON EXTRACELLULAR VESICLES

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument	HOMEMADE PLUNGER
Cryogen Name	ETHANE-PROPANE
Sample Vitrification Details	VITRIFICATION 1 -- CRYOGEN- ETHANE-PROPANE MIXTURE, TEMPERATURE- 77, INSTRUMENT- HOMEMADE PLUNGER, METHOD- BLOT FOR 3 SECONDS BEFORE PLUNGING

3D Reconstruction
Reconstruction Method	TOMOGRAPHY
Number of Particles	801
Reported Resolution (Å)	22.2
Resolution Method
Other Details	SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-2530. (DEPOSITION ID: 12175).
Refinement Type
Symmetry Type	POINT
Point Symmetry	C1

Map-Model Fitting and Refinement
Id	1
Refinement Space	REAL
Refinement Protocol	FLEXIBLE FIT
Refinement Target
Overall B Value
Fitting Procedure
Details	METHOD--FLEXIBLE FITTING REFINEMENT PROTOCOL--FLEXIBLE FIT OF X-RAY STRUCTURE

Data Acquisition
Detector Type	GATAN ULTRASCAN 4000 (4k x 4k)
Electron Dose (electrons/Å**2)	80

Imaging Experiment	1
Date of Experiment	2013-03-03
Temperature (Kelvin)	85
Microscope Model	FEI TECNAI F30
Minimum Defocus (nm)	2000
Maximum Defocus (nm)	2500
Minimum Tilt Angle (degrees)	-60
Maximum Tilt Angle (degrees)	60
Nominal CS	2
Imaging Mode	BRIGHT FIELD
Specimen Holder Model
Nominal Magnification	95000
Calibrated Magnification	78950
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	200
Imaging Details

EM Software
Task	Software Package	Version
MODEL FITTING	UCSF Chimera
RECONSTRUCTION	PEET

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.