8OT1

unseeded Abeta(1-40) amyloid fibril (morphology i)


ELECTRON MICROSCOPY
Sample
in vitro Abeta(1-40) amyloid fibril
Specimen Preparation
Sample Aggregation StateHELICAL ARRAY
Vitrification InstrumentLEICA PLUNGER
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodHELICAL
Number of Particles176139
Reported Resolution (Å)2.59
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypeHELICAL
Axial SymmetryC2
Axial Rise4.763
Angular Rotation-0.782
Map-Model Fitting and Refinement
Id1
Refinement SpaceREAL
Refinement ProtocolBACKBONE TRACE
Refinement Targetcorrleation coefficient
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeFEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å**2)40
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)600
Maximum Defocus (nm)2100
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification130000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONRELION3.1.3
IMAGE ACQUISITIONSerialEM
CTF CORRECTIONCTFFIND4.1
MODEL FITTINGCoot0.9.2
MODEL REFINEMENTPHENIX1.20.1-4487
RECONSTRUCTIONRELION3.1.3
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION227311