ELECTRON MICROSCOPY

Sample

80S ribosome

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument ?
Cryogen Name ETHANE
Sample Vitrification Details RAPID-FREEZING IN LIQUID ETHANE
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles ?
Reported Resolution (Å) 11.700
Resolution Method ?
Other Details SPIDER PACKAGE
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--USING A RAPID MOTIF SEARCH MODULE OF SPIDER (THE CRYO-EM MAP USED FOR FITTING WAS INTERPOLATED TO PIXEL SIZE 2.82)
Data Acquisition
Detector Type KODAK SO-163 FILM
Electron Dose (electrons/Å2) 15.00
Imaging Experiment
Date of Experiment 2001-02-01
Temprature (Kelvin)
Microscope Model FEI TECNAI 20
Minimum Defocus (nm) 4900.
Maximum Defocus (nm) 1400.
Minimum Tilt Angle (degrees) 0.00
Maximum Tilt Angle (degrees) 0.00
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model .
Nominal Magnification 50000
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 FILTERATION