ELECTRON MICROSCOPY

Sample

myosin VI-actin in the ADP state

Specimen Preperation
Sample Aggregation State FILAMENT
Vitrification Instrument LEICA EM GP
Cryogen Name ETHANE
Sample Vitrification Details Sample was applied to a glow-discharged holey carbon grid. 3 uL actin was incubated for 60 seconds. 3 uL of myosin VI was added and incubated for 60 seconds. 3 uL solution was removed. An additional 3 uL of myosin VI was applied. After 60 seconds, 3 uL solution was removed, and the grid was blotted for 3 seconds from the backside with filter paper.
3D Reconstruction
Reconstruction Method HELICAL
Number of Particles 36114
Reported Resolution (Å) 5.5
Resolution Method FSC 0.143 CUT-OFF
Other Details ?
Refinement Type
Symmetry Type HELICAL
Map-Model Fitting and Refinement
ID 1
Refinement Space ?
Refinement Protocol FLEXIBLE FIT
Refinement Target ?
Overall B Value 200
Fitting Procedure ?
Details The initial model was subjected to MDFF using the 7.5 A low pass-filtered density map. Resulting atomistic models were backbone averaged in Phenix and side chains were truncated to alanine. This treatment has resulted in the errors noted in the associated caveats.
Data Acquisition
Detector Type GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å2) 1.5
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TECNAI 20
Minimum Defocus (nm) 1500
Maximum Defocus (nm) 3000
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 2
Imaging Mode BRIGHT FIELD
Specimen Holder Model GATAN 626 SINGLE TILT LIQUID NITROGEN CRYO TRANSFER HOLDER
Nominal Magnification 29000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION Appion ?
IMAGE ACQUISITION Leginon ?
CTF CORRECTION CTFFIND 3
CTF CORRECTION FREALIGN 9.11
MODEL FITTING MDFF ?
MODEL FITTING DireX ?
MODEL FITTING NAMD ?
INITIAL EULER ASSIGNMENT EMAN2 ?
INITIAL EULER ASSIGNMENT SPARX ?
FINAL EULER ASSIGNMENT FREALIGN 9.11
RECONSTRUCTION FREALIGN ?
MODEL REFINEMENT MDFF ?
MODEL REFINEMENT PHENIX ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?