ELECTRON MICROSCOPY

Sample

50S Ribosomal Subunit

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument
Cryogen Name
Sample Vitrification Details
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 16000
Reported Resolution (Å) 7.5
Resolution Method FSC 3 SIGMA CUT-OFF
Other Details ?
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol ?
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details DETAILS--THIS FILE HAS BEEN GENERATED BY THE USE OF ALL RELEVANT BIOCHEMICAL CONSTRAINTS AND THE CONSTRAINTS GIVEN BY THE ELECTRON DENSITY CONTOUR OF THE RIBOSOME, WHICH WAS DERIVED FROM THE CRYO-ELECTRON MICROSCOPIC RECONSTRUCTION. THIS FILE IS PART OF A SET OF ALL THREE RIBONUCLEIC ACID CHAINS OF THE RIBOSOME TOGETHER WITH A NUMBER OF RIBOSOMAL PROTEINS WHICH ARE ALSO DEPOSITED WITH THE PDB DATA BANK. THE ATOMIC COORDINATES OF ALL THESE RIBOSOMAL COMPONENTS REFLECT THEIR POSITIONS IN THE 70S RIBOSOME.
Data Acquisition
Detector Type GENERIC FILM
Electron Dose (electrons/Å2) .
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI/PHILIPS CM200FEG
Minimum Defocus (nm) 1000
Maximum Defocus (nm) 2000
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model GATAN LIQUID NITROGEN
Nominal Magnification 38000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details from Structure 1999 citation
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details