2Y9J

THREE-DIMENSIONAL MODEL OF SALMONELLA'S NEEDLE COMPLEX AT SUBNANOMETER RESOLUTION

ELECTRON MICROSCOPY

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Sample
INNER MEMBRANE RING 1

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

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles
Reported Resolution (Å)	6.4
Resolution Method	FSC 0.5 CUT-OFF
Other Details	RESOLUTION 6.4 ANGSTROM (0.5 FSC), 4.7 ANGSTROM (HALF BIT) PRGH (3GR1) MONOMERS WERE FITTED SEPARATELY, PRGK MODEL WAS BUILT BASED ON HOMOLOGY MODEL OF ESCJ (1YJ7) AND THEN INDIVIDUALLY FITTED INTO EM MAP. SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-1874. (DEPOSITION ID: 7821).
Refinement Type
Symmetry Type	POINT
Point Symmetry	C24

Map-Model Fitting and Refinement
Id	1 (2Y9J)
Refinement Space	REAL
Refinement Protocol	OTHER
Refinement Target	Cross-correlation coefficient
Overall B Value
Fitting Procedure
Details	METHOD--CORRELATION

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

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	FEI POLARA 300
Minimum Defocus (nm)	1000
Maximum Defocus (nm)	2500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS	2
Imaging Mode	BRIGHT FIELD
Specimen Holder Model
Nominal Magnification	93000
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details	MAGNIFICATION AT THE CCD 112969, CAMERA PIXEL 15UM, 1.33 ANGSTROM PER PIXEL, DATA COLLECTED SEMI- AUTOMATICALLY WITH POINT-2-POINT (DEVELOPED IN-HOUSE)

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

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
	EACH MICROGRAPH