ELECTRON MICROSCOPY

Sample

Poliovirus 135S particle and C3 Fab complex

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument ?
Cryogen Name ETHANE
Sample Vitrification Details Vitrification carried out in ambient atmosphere. Ethane cooled by liquid nitrogen.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 9810
Reported Resolution (Å) 9.1
Resolution Method FSC 0.5 CUT-OFF
Other Details Reconstruction computed from focal pairs. Pairs not summed for reconstruction calculation.
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol RIGID BODY FIT
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details REFINEMENT PROTOCOL--Rigid Body DETAILS--Atomic coordinates for C3 Fab (Nature Struct. Biol. 2, 232-243) (PDB entry 1FPT) were manually fitted using UCSF Chimera (Journal of Computational Chemistry 25, 1605-1612). A core-weighted, rigid-body fitting algorithm implemented in CHARRM (J Struct Biol 141, 63-76) was used to refine the fit.
Data Acquisition
Detector Type KODAK SO-163 FILM
Electron Dose (electrons/Å2) 14
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI/PHILIPS CM200FEG
Minimum Defocus (nm) 1120
Maximum Defocus (nm) 1630
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 2
Imaging Mode BRIGHT FIELD
Specimen Holder Model GATAN LIQUID NITROGEN
Nominal Magnification 38000
Calibrated Magnification 38000
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 120
Imaging Details ?
Imaging Experiment
Task Software Package Version
MODEL FITTING CHARMM ?
RECONSTRUCTION EM3DR 2
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
. CTF and decay correction of each particle