ELECTRON MICROSCOPY

Sample

EF-G bound to 70S ribosome

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK II
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 32383
Reported Resolution (Å) 3.8
Resolution Method FSC 0.143 CUT-OFF
Other Details Resolution : 5.36 Resolution (masked and sharpened) : 3.8
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol RIGID BODY FIT
Refinement Target Cross-correlation coefficient
Overall B Value ?
Fitting Procedure ?
Details each ribosomal rna and protein was first rigid body fitted in the map using UCSF chimera. The missing componant (mRNA and bL9) were then added and fitted. the quality of the fitting was then assesed and adjust manually, residue per residue using coot. the RNA confomation were ajusted with the ERRASER modul (in Phenix). The final model was refined using phenix real space refinement procedure.
Data Acquisition
Detector Type FEI FALCON II (4k x 4k)
Electron Dose (electrons/Å2) 45
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1500
Maximum Defocus (nm) 3000
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 0.0023
Imaging Mode BRIGHT FIELD
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification 59000
Calibrated Magnification 120443
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION EMAN 2
IMAGE ACQUISITION EPU ?
CTF CORRECTION CTFFIND 4
CTF CORRECTION RELION 1.4
MODEL FITTING UCSF Chimera 1.11.2
MODEL FITTING Coot 0.8.3 EL (ccp4)
INITIAL EULER ASSIGNMENT RELION 1.4
FINAL EULER ASSIGNMENT RELION 1.4
CLASSIFICATION RELION 1.4
RECONSTRUCTION RELION 1.4
MODEL REFINEMENT PHENIX 1.12rc1-2807
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?