ELECTRON MICROSCOPY

Sample

Trp-tRNA-EFTu-GDP-kir-70S ribosome

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK I
Cryogen Name NITROGEN
Sample Vitrification Details Blot for 3 seconds, plunge into liquid nitrogen (Vitrobot)
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 21000
Reported Resolution (Å) 13.1
Resolution Method FSC 0.5 CUT-OFF
Other Details ?
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol FLEXIBLE FIT
Refinement Target RMSD, cross correlation
Overall B Value ?
Fitting Procedure ?
Details REFINEMENT PROTOCOL--Molecular Dynamics based flexible fitting
Data Acquisition
Detector Type TVIPS TEMCAM-F415 (4k x 4k)
Electron Dose (electrons/Å2) 25
Imaging Experiment
Date of Experiment 2011-05-01
Temprature (Kelvin)
Microscope Model FEI TECNAI F30
Minimum Defocus (nm) 1200
Maximum Defocus (nm) 4000
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 2.26
Imaging Mode BRIGHT FIELD
Specimen Holder Model OTHER
Nominal Magnification 59000
Calibrated Magnification 58269
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details automated data collection system AutoEMation (CCD mag. 100000x)
Imaging Experiment
Task Software Package Version
MODEL FITTING MDFF ?
RECONSTRUCTION SPIDER ?
RECONSTRUCTION Xmipp ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
. Volumes were CTF-corrected in defocus groups
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