1ZO1

ELECTRON MICROSCOPY

Sample

70S INITIATION COMPLEX

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK I
Cryogen Name ETHANE
Sample Vitrification Details HOLEY CARBON GRID AT 20C FLASH FROZEN INTO LIQUID ETHAN
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 20283
Reported Resolution (Å) 13.8
Resolution Method FSC 0.5 CUT-OFF
Other Details resolution 13.8 ANGSTROMS (FSC=0.5) and 8.6 ANGSTROMS (3sigma)
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 RSREF
Overall B Value ?
Fitting Procedure ?
Details METHOD--COORDINATE FILES WERE FITTED TO THE E. COLI TRANSLATION INITIATION COMPLEX MAP (EMBL-EMD 3525). REFINEMENT PROTOCOL--RIGID BODY FIT OF DOMAINS I-V OF IF2, RIGID BODY FIT OF IF1 AND FMET-TRNA
Data Acquisition
Detector Type KODAK SO-163 FILM
Electron Dose (electrons/Å2) .
Imaging Experiment
Date of Experiment 2004-01-01
Temprature (Kelvin)
Microscope Model FEI TECNAI F20
Minimum Defocus (nm) -930.00
Maximum Defocus (nm) -3930.00
Minimum Tilt Angle (degrees) 0.00
Maximum Tilt Angle (degrees) 0.00
Nominal CS 2.00
Imaging Mode BRIGHT FIELD
Specimen Holder Model .
Nominal Magnification 39000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details LOW DOSE MODE
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
. DEFOCUS GROUPS 0.93-3.93 UM