ELECTRON MICROSCOPY

Sample

bacteriophage Sf6

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument HOMEMADE PLUNGER
Cryogen Name ETHANE
Sample Vitrification Details Vitrification was carried out with a standard cryoEM method. The sample of 4 microlitres was applied to a holey EM grid, blotted for 3-4 seconds with a Whatman #2 filter paper, and plunged into ethane slush incubated in liquid nitrogen. The grid was stored in liquid nitrogen.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 3232
Reported Resolution (Å) 19
Resolution Method ?
Other Details The initial model was the cryoEM map of the related phage P22.
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 METHOD--manual fitting in O coupled with local optimization with UCSF Chimera REFINEMENT PROTOCOL--rigid body
Data Acquisition
Detector Type GENERIC CCD (2k x 2k)
Electron Dose (electrons/Å2) 20
Imaging Experiment
Date of Experiment 2008-07-18
Temprature (Kelvin)
Microscope Model FEI TECNAI F20
Minimum Defocus (nm) 1060
Maximum Defocus (nm) 471
Minimum Tilt Angle (degrees) 0
Maximum Tilt Angle (degrees) 0
Nominal CS 4
Imaging Mode BRIGHT FIELD
Specimen Holder Model ?
Nominal Magnification 39000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
. none