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Ternary complex-bound E.coli 70S ribosome.
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2I2U experimental model PDB 2I2V experimental model PDB 2J00 experimental model PDB 1OB2
Sample E. coli ribosome in complex with the ternary complex EF-Tu aminoacyl-tRNA GDP
Specimen Preparation 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 Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (2I2U, 2I2V, 2J00, 1OB2) 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/Å**2) 20
Imaging Experiment 1 Date of Experiment 2006-08-31 Temperature (Kelvin) 84 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
EM Software 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