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Structure of recombinant alpha-synuclein fibrils 1B capable of seeding GCIs in vivo
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 4.9912 f_angle_d 0.5719 f_chiral_restr 0.0572 f_bond_d 0.0021 f_plane_restr 0.0013
Sample recombinant alpha-synuclein fibril
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument LEICA EM GP Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method HELICAL Number of Particles 51272 Reported Resolution (Å) 1.93 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type HELICAL Axial Symmetry C1 Axial Rise 2.36 Angular Rotation 179.52
Map-Model Fitting and Refinement Id 1 Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON IV (4k x 4k) Electron Dose (electrons/Å**2) 40
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 800 Maximum Defocus (nm) 1800 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION RELION 4.0.0 IMAGE ACQUISITION EPU CTF CORRECTION CTFFIND 4.1 MODEL FITTING Coot MODEL REFINEMENT PHENIX dev_5240
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 108543 particles selected by manual picking of fibril start and end points