ELECTRON MICROSCOPY

Sample

small subunit of mitochondrial ribosome

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK I
Cryogen Name ETHANE
Sample Vitrification Details Plunged into liquid ethane (FEI VITROBOT MARK I).
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 307556
Reported Resolution (Å) 7.0
Resolution Method ?
Other Details A total of 866553 particle images were picked and subjected to supervised classification. Based on statistical information derived from Relion classification, ~28% of the particles - those with low cross-correlation coefficient values with the 55S reference projections - were removed.
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol FLEXIBLE FIT
Refinement Target Cross-correlation coefficient
Overall B Value ?
Fitting Procedure ?
Details METHOD--Flexible fitting REFINEMENT PROTOCOL--rigid body
Data Acquisition
Detector Type GATAN ULTRASCAN 1000 (2k x 2k)
Electron Dose (electrons/Å2) 9.0
Imaging Experiment
Date of Experiment 2009-10-10
Temprature (Kelvin)
Microscope Model JEOL 3200FS
Minimum Defocus (nm) 1000
Maximum Defocus (nm) 4500
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model GATAN LIQUID NITROGEN
Nominal Magnification 60000
Calibrated Magnification 59717
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
MODEL FITTING MDFF ?
RECONSTRUCTION RELION 1.2
RECONSTRUCTION SPIDER ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
. CTFFIND3