ELECTRON MICROSCOPY

Sample

70S ribosome

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument HOMEMADE PLUNGER
Cryogen Name ETHANE
Sample Vitrification Details Rapid-freezing in liquid ethane
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 27644
Reported Resolution (Å) 13
Resolution Method ?
Other Details SPIDER package, This entry contains only C alpha and P atoms.
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol OTHER
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details METHOD--manual fitting in O
Data Acquisition
Detector Type KODAK SO-163 FILM
Electron Dose (electrons/Å2) 15
Imaging Experiment
Date of Experiment 2003-08-01
Temprature (Kelvin)
Microscope Model FEI TECNAI F20
Minimum Defocus (nm) 3700
Maximum Defocus (nm) 1450
Minimum Tilt Angle (degrees) 0
Maximum Tilt Angle (degrees) 0
Nominal CS 2.0
Imaging Mode BRIGHT FIELD
Specimen Holder Model ?
Nominal Magnification 49000
Calibrated Magnification 52000
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
. CTF correction of 3D-maps by Wiener filtration