ELECTRON MICROSCOPY

Sample

F-actin-tropomyosin complex

Specimen Preperation
Sample Aggregation State FILAMENT
Vitrification Instrument GATAN CRYOPLUNGE 3
Cryogen Name ETHANE
Sample Vitrification Details Sample was applied to grid, incubated for 10 seconds, and manually blotted for 3 seconds from the backside with filter paper before plunging into liquid ethane (GATAN CRYOPLUNGE 3)
3D Reconstruction
Reconstruction Method HELICAL
Number of Particles ?
Reported Resolution (Å) 3.7
Resolution Method FSC 0.5 CUT-OFF
Other Details The tropomyosin map filtered to 6.5 Angstrom was merged with the final F-actin map (3.7 Angstrom) to obtain a map of the entire F-actin tropomyosin complex. Coordinates must be shifted by (0.123 -0.381 0.273) to match coordinates to fibre diffraction standards (filament axis = z axis passing through x=0 and y=0).
Refinement Type
Symmetry Type HELICAL
Map-Model Fitting and Refinement
ID 1
Refinement Space ?
Refinement Protocol FLEXIBLE FIT
Refinement Target R-factor
Overall B Value 55.4
Fitting Procedure ?
Details METHOD--maximum likelihood, flexible fitting
Data Acquisition
Detector Type FEI FALCON II (4k x 4k)
Electron Dose (electrons/Å2) 14.6
Imaging Experiment
Date of Experiment 2013-10-17
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 800
Maximum Defocus (nm) 2600
Minimum Tilt Angle (degrees) 0.0
Maximum Tilt Angle (degrees) 0.0
Nominal CS 0
Imaging Mode BRIGHT FIELD
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification 59000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details Cs-corrected microscope
Imaging Experiment
Task Software Package Version
MODEL FITTING Coot ?
MODEL FITTING DireX ?
MODEL FITTING PHENIX ?
RECONSTRUCTION SPARX ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
. each micrograph