ELECTRON MICROSCOPY

Sample

ribosomal 70S-EF-G complex

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK I
Cryogen Name ETHANE
Sample Vitrification Details Blot for 5-10 seconds before plunging into liquid ethane (FEI VITROBOT MARK I)
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 279309
Reported Resolution (Å) 6.800
Resolution Method FSC 0.5 CUT-OFF
Other Details (Single particle--Applied symmetry: C1)
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol RIGID BODY FIT
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details REFINEMENT PROTOCOL--rigid body
Data Acquisition
Detector Type KODAK SO-163 FILM
Electron Dose (electrons/Å2) 20.00
Imaging Experiment
Date of Experiment 2010-06-14
Temprature (Kelvin)
Microscope Model FEI POLARA 300
Minimum Defocus (nm) 2000
Maximum Defocus (nm) 5000
Minimum Tilt Angle (degrees) 0.0
Maximum Tilt Angle (degrees) 0.0
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model GATAN HELIUM
Nominal Magnification 39000
Calibrated Magnification 39000
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
MODEL FITTING UCSF Chimera ?
RECONSTRUCTION SPIDER ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
. The volumes were CTF-corrected in defocus groups with an average of approximately 906 individual images per group.