2BYU | pdb_00002byu

Negative stain EM reconstruction of M.tuberculosis Acr1(Hsp 16.3) fitted with wheat sHSP dimer

ELECTRON MICROSCOPY

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1GME

Sample
HSP 16.3

Specimen Preparation
Sample Aggregation State	PARTICLE

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	6123
Reported Resolution (Å)	16.5
Resolution Method
Other Details	DIMER ALPHA CRYSTALLIN DOMAIN OF 1GME (43-137 AND 146-151) FITTED INTO DENSITY USING URO. RESOLUTION WAS DETERMINED BY 0.5 FOURIER SHELL CORRELATION.
Refinement Type
Symmetry Type	POINT
Point Symmetry	I

Map-Model Fitting and Refinement
Id	1 (1GME)
Refinement Space	RECIPROCAL
Refinement Protocol	OTHER
Refinement Target	Cross-correlation coefficient
Overall B Value
Fitting Procedure
Details	METHOD--QUALITY OF THE FIT R-FACTOR= 0.516, CROSS- CORRELATION COEFFICIENT 81.5%

Data Acquisition
Detector Type	KODAK SO-163 FILM
Electron Dose (electrons/Å**2)	10

Imaging Experiment	1
Date of Experiment	2004-03-28
Temperature (Kelvin)	293
Microscope Model	FEI TECNAI 12
Minimum Defocus (nm)	390
Maximum Defocus (nm)	600
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS	2
Imaging Mode	BRIGHT FIELD
Specimen Holder Model
Nominal Magnification	42000
Calibrated Magnification
Source	TUNGSTEN HAIRPIN
Acceleration Voltage (kV)	120
Imaging Details