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CryoEM structure of recombinant DeltaN7 alpha-synuclein in PBS
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6OSL
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 19.092 f_angle_d 0.694 f_chiral_restr 0.049 f_bond_d 0.004 f_plane_restr 0.002
Sample alpha-synuclein DeltaN7 amyloid fibrils
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method HELICAL Number of Particles 12348 Reported Resolution (Å) 2.5 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type HELICAL Axial Symmetry C1 Axial Rise 2.44 Angular Rotation 179.43
Map-Model Fitting and Refinement Id 1 (6osl) Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target cross-correlation coefficient Overall B Value 106 Fitting Procedure Details see methods, rigid body docked chain of PDB: 6osl, manual fitting in coot, real-space refine in phenix
Data Acquisition Detector Type FEI FALCON IV (4k x 4k) Electron Dose (electrons/Å**2) 45
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 1400 Maximum Defocus (nm) 2600 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 130000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION Topaz IMAGE ACQUISITION EPU 3.0 CTF CORRECTION CTFFIND 4.16 MODEL FITTING Coot 0.9.8 INITIAL EULER ASSIGNMENT RELION 4.0 FINAL EULER ASSIGNMENT RELION 4.0 CLASSIFICATION RELION 4.0 RECONSTRUCTION RELION 4.0 MODEL REFINEMENT PHENIX 1.17.1_3660:
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 315777