ELECTRON MICROSCOPY

Sample

immature ribosomal small subunit from rimm gene deleted E.coli strain

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 44392
Reported Resolution (Å) 13.2
Resolution Method FSC 0.5 CUT-OFF
Other Details (Details about the particle: This is a classification volume (No. 5) using ML3D methods.)
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol FLEXIBLE FIT
Refinement Target Cross-correlation
Overall B Value ?
Fitting Procedure ?
Details REFINEMENT PROTOCOL--Initial local fitting was done using Chimera and then MDFF was used for flexible fitting DETAILS--ref- Trabuco, L.G., Villa, E., Mitra, K., Frank, J. and Schulten, K. (2008) Flexible fitting of atomic structures into electron microscopy maps using molecular dynamics. Structure, 16, 673-683
Data Acquisition
Detector Type GATAN ULTRASCAN 4000 (4k x 4k)
Electron Dose (electrons/Å2) 20
Imaging Experiment
Date of Experiment 2012-01-01
Temprature (Kelvin)
Microscope Model FEI TECNAI F20
Minimum Defocus (nm) 1300
Maximum Defocus (nm) 4000
Minimum Tilt Angle (degrees) 0.0
Maximum Tilt Angle (degrees) 0.0
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model GATAN LIQUID NITROGEN
Nominal Magnification 80000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
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
. Weiner filter