ELECTRON MICROSCOPY

Sample

human tE2

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument HOMEMADE PLUNGER
Cryogen Name ETHANE
Sample Vitrification Details flash freezing in liquid ethane
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 2432
Reported Resolution (Å) 8.8
Resolution Method ?
Other Details Orientation determination and 3D reconstruction were performed using the IMIRS software package on multiprocessor MS Windows XP computer workstations. The orientations were first estimated from the particle images in the far-from-focus micrographs and refined to about 30- resolution. These orientation parameters were then further refined using the particles in the close-to-focus micrographs.
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol RIGID BODY FIT
Refinement Target best fit using the program CHIMERA
Overall B Value 30
Fitting Procedure ?
Details REFINEMENT PROTOCOL--rigid body
Data Acquisition
Detector Type GATAN ULTRASCAN 4000 (4k x 4k)
Electron Dose (electrons/Å2) 12
Imaging Experiment
Date of Experiment 2003-10-01
Temprature (Kelvin)
Microscope Model JEOL 2010F
Minimum Defocus (nm) 600
Maximum Defocus (nm) 2100
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 1.0
Imaging Mode BRIGHT FIELD
Specimen Holder Model ?
Nominal Magnification 69250
Calibrated Magnification 69250
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details ?
Imaging Experiment
Task Software Package Version
MODEL FITTING UCSF Chimera ?
RECONSTRUCTION IMIRS ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
. CTF correction of each image