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CryoEM structure of Myosin VI-Actin complex in the ADP state, backbone-averaged with side chains truncated to alanine
ELECTRON MICROSCOPY
Sample
myosin VI-actin in the ADP state
Sample Components
myosin VI
actin
Specimen Preparation
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 ...
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
Axial Symmetry
C1
Axial Rise
28.06
Angular Rotation
-166.69
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 ...
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/Å**2)
1.5
Imaging Experiment
1
Date of Experiment
Temperature (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