ELECTRON MICROSCOPY

Sample

E. coli ribosome in complex with the ternary complex EF-Tu aminoacyl-tRNA GDP

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK I
Cryogen Name ETHANE
Sample Vitrification Details Vitrification using FEI Vitrobot; blot 3 seconds before plunging with an offset of -1mm
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 131599
Reported Resolution (Å) 6.7
Resolution Method ?
Other Details see LeBarron et al., JSB 164 (2008) 24-32.
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol FLEXIBLE FIT
Refinement Target Cross correlation, root-mean square deviation
Overall B Value ?
Fitting Procedure ?
Details METHOD--See Trabuco et al., Structure 16 (2008) 673-683. REFINEMENT PROTOCOL--Flexible fitting
Data Acquisition
Detector Type KODAK SO-163 FILM
Electron Dose (electrons/Å2) 20
Imaging Experiment
Date of Experiment 2006-08-31
Temprature (Kelvin)
Microscope Model FEI POLARA 300
Minimum Defocus (nm) 4520
Maximum Defocus (nm) 1200
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model ?
Nominal Magnification 59000
Calibrated Magnification 58279
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
MODEL FITTING MDFF ?
RECONSTRUCTION SPIDER ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
. Correction of reconstruction of each defocus group