9CZL

Straight tau filaments in dominantly inherited Alzheimer disease with cotton wool plaques


ELECTRON MICROSCOPY
Sample
Straight tau filament
Specimen Preparation
Sample Aggregation StateFILAMENT
Vitrification InstrumentGATAN CRYOPLUNGE 3
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodHELICAL
Number of Particles24819
Reported Resolution (Å)2.9
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypeHELICAL
Axial SymmetryC1
Axial Rise4.78
Angular Rotation-1.08
Map-Model Fitting and Refinement
Id1
Refinement SpaceREAL
Refinement ProtocolAB INITIO MODEL
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)57.79
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)500
Maximum Defocus (nm)2500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification81000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONRELION4.0.1
IMAGE ACQUISITIONEPU3.0.0.4164
CTF CORRECTIONCTFFIND4.1
MODEL FITTINGCoot0.9.8.93
MODEL REFINEMENTPHENIX1.21.1-5286
MODEL REFINEMENTRosetta3.13
INITIAL EULER ASSIGNMENTRELION4.0.1
FINAL EULER ASSIGNMENTRELION4.0.1
CLASSIFICATIONRELION4.0.1
RECONSTRUCTIONRELION4.0.1
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION