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Tau filaments extracted from the frontotemporal cortex of a patient with Pick's disease
Specimen Preparation
Sample Aggregation State
TISSUE
Vitrification Instrument
FEI VITROBOT MARK IV
Cryogen Name
ETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction Method
HELICAL
Number of Particles
16097
Reported Resolution (Å)
3.2
Resolution Method
FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type
HELICAL
Axial Symmetry
C1
Axial Rise
4.78
Angular Rotation
-0.75
Map-Model Fitting and Refinement
Id
1
Refinement Space
RECIPROCAL
Refinement Protocol
AB INITIO MODEL
Refinement Target
Fourier shell correlation
Overall B Value
57
Fitting Procedure
Details
Fourier-space refinement of the complete atomic model against the narrow Pick filament map was performed in REFMAC. A stack of three consecutive monom ...
Fourier-space refinement of the complete atomic model against the narrow Pick filament map was performed in REFMAC. A stack of three consecutive monomers was refined to preserve nearest-neighbour interactions for the middle chain.