ISDA: 4V2T

ELECTRON MICROSCOPY

Sample

PLEUROTOLYSIN PORE IN LIPOSOMES

Specimen Preperation

Sample Aggregation State	PARTICLE
Vitrification Instrument	FEI VITROBOT MARK III
Cryogen Name	ETHANE
Sample Vitrification Details	VITRIFICATION 1 -- CRYOGEN- ETHANE, HUMIDITY - 80, INSTRUMENT- FEI VITROBOT MARK III, METHOD- PLEUROTOLYSIN A WAS FIRST ADDED TO SPHINGOMYELIN-CHOLESTEROL LIPOSOMES AT A MOLAR RATIO OF 1 TO 2000 PROTEIN TO LIPID IN THE ABOVE BUFFER. AFTER 5 MIN INCUBATION AT ROOM TEMPERATURE, PLEUROTOLYSIN B WAS ADDED TO THE MIXTURE AT A MOLAR RATIO OF 1 TO 2 TO PLEUROTOLYSIN A. THE MIXTURE WAS INCUBATED AT 40C OR ROOM TEMPERATURE FOR 30 MIN AFTER WHICH 3. 5 UL WERE PLACED ON NEGATIVELY GLOW DISCHARGED LACEY GRIDS AND VITRIFIED IN LIQUID ETHANE USING A VITROBOT. BLOTTING WAS CARRIED OUT AT 36C AND 80 PERCENT HUMIDITY.

3D Reconstruction

Reconstruction Method	SINGLE PARTICLE
Number of Particles	8700
Reported Resolution (Å)	11
Resolution Method	?
Other Details	SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-2793. (DEPOSITION ID: 12292).
Refinement Type
Symmetry Type	POINT

Map-Model Fitting and Refinement

ID	1
Refinement Space	REAL
Refinement Protocol	FLEXIBLE FIT
Refinement Target	Cross-correlation coefficient
Overall B Value	?
Fitting Procedure	?
Details	METHOD--FLEXIBLE

Data Acquisition

Detector Type	GATAN ULTRASCAN 4000 (4k x 4k)
Electron Dose (electrons/Å²)	25

Imaging Experiment

Date of Experiment	2011-01-19
Temprature (Kelvin)
Microscope Model	FEI POLARA 300
Minimum Defocus (nm)	800
Maximum Defocus (nm)	3200
Minimum Tilt Angle (degrees)	?
Maximum Tilt Angle (degrees)	?
Nominal CS	2.3
Imaging Mode	BRIGHT FIELD
Specimen Holder Model	.
Nominal Magnification	59000
Calibrated Magnification	76148
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details	?

Imaging Experiment

Task	Software Package	Version
MODEL FITTING	Flex-EM	?
MODEL FITTING	MODELLER	?
MODEL FITTING	UCSF Chimera	?
RECONSTRUCTION	IMAGIC	?
RECONSTRUCTION	SPIDER	?

Image Processing

CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
?	ESTIMATED WITH CTFFIND3, THEN PHASES FLIPPED FOR EACH PARTICLE