ELECTRON MICROSCOPY

Sample

Acrosomal bundle from Limulus sperm

Specimen Preperation
Sample Aggregation State FILAMENT
Vitrification Instrument HOMEMADE PLUNGER
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method CRYSTALLOGRAPHY
Number of Particles ?
Reported Resolution (Å) 9.5
Resolution Method ?
Other Details Cross-correlation and merging of crystallographic reflections derived from cryoelectron micrographs of 3D crystalss: application to the Limulus acrosomal bundle, Michael F. Schmid, J. Struc. Biol., 144 (2003) 195-208
Refinement Type
Symmetry Type 3D CRYSTAL
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol AB INITIO MODEL
Refinement Target Best cross-correlation score between model and cryoEM map
Overall B Value ?
Fitting Procedure ?
Details REFINEMENT PROTOCOL--Foldhunter program from EMAN single particle analysis package
Data Acquisition
Detector Type KODAK SO-163 FILM
Electron Dose (electrons/Å2) 15
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model JEOL 4000EX
Minimum Defocus (nm) 800
Maximum Defocus (nm) 3000
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model ?
Nominal Magnification 40000
Calibrated Magnification ?
Source LAB6
Acceleration Voltage (kV) 400
Imaging Details For more information, please refer to EMDB entry EMD-1088 http://www.ebi.ac.uk/msd-srv/emsearch/atlas/1088_summary.html
Imaging Experiment
Task Software Package Version
MODEL FITTING Foldhunter ?
RECONSTRUCTION MRC ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details