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Cryo-EM structure of the type II amyloid-beta 42 fibril containing a D-Asp at positions 7 and 23
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 12.482 f_angle_d 0.415 f_chiral_restr 0.054 f_bond_d 0.003 f_plane_restr 0.002
Sample Type II amyloid-beta 42 fibril containing a D-Asp at positions 7 and 23
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method HELICAL Number of Particles 165668 Reported Resolution (Å) 2.9 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type HELICAL Axial Symmetry C1 Axial Rise 4.75 Angular Rotation -2.12
Map-Model Fitting and Refinement Id 1 Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 50
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TALOS ARCTICA Minimum Defocus (nm) 1400 Maximum Defocus (nm) 1700 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification 105000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version MODEL REFINEMENT PHENIX 1.21.1_5286:
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details NONE