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Paired helical tau filaments from high-spin supernatants of aqueous extracts from Alzheimer's disease brains | PHF Tau
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6HRE
Refinement RMS Deviations Key Refinement Restraint Deviation r_lrange_it 26.209 r_lrange_other 26.202 r_scangle_it 20.395 r_scangle_other 20.37 r_dihedral_angle_6_deg 14.804 r_mcangle_it 14.557 r_mcangle_other 14.537 r_dihedral_angle_1_deg 12.505 r_dihedral_angle_3_deg 12.416 r_scbond_it 12.07
RMS Deviations Key Refinement Restraint Deviation r_lrange_it 26.209 r_lrange_other 26.202 r_scangle_it 20.395 r_scangle_other 20.37 r_dihedral_angle_6_deg 14.804 r_mcangle_it 14.557 r_mcangle_other 14.537 r_dihedral_angle_1_deg 12.505 r_dihedral_angle_3_deg 12.416 r_scbond_it 12.07 r_scbond_other 12.05 r_mcbond_it 9.894 r_mcbond_other 9.885 r_dihedral_angle_2_deg 4.466 r_angle_refined_deg 1.474 r_angle_other_deg 0.577 r_symmetry_nbd_refined 0.222 r_xyhbond_nbd_refined 0.175 r_nbd_refined 0.173 r_nbd_other 0.166 r_nbtor_refined 0.158 r_symmetry_nbd_other 0.154 r_symmetry_xyhbond_nbd_refined 0.078 r_symmetry_nbtor_other 0.077 r_chiral_restr 0.065 r_bond_refined_d 0.007 r_gen_planes_refined 0.007 r_gen_planes_other 0.004 r_bond_other_d
Sample Paired helical tau filament in soluble high-molecular weight aggregate fractions extracted from the Alzheimer's disease brain
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method HELICAL Number of Particles 44535 Reported Resolution (Å) 3.1 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type HELICAL Axial Symmetry C1 Axial Rise 2.4 Angular Rotation 179.4
Map-Model Fitting and Refinement Id 1 (6HRE) 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) 40
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 1000 Maximum Defocus (nm) 2400 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version MODEL FITTING Coot RECONSTRUCTION RELION MODEL REFINEMENT REFMAC
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION