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Cryo-EM structure of cardiac amyloid fibril from a variant ATTR I84S amyloidosis patient-3, wild-type morphology
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 5.286 f_angle_d 0.525 f_chiral_restr 0.048 f_bond_d 0.003 f_plane_restr 0.003
Sample Transthyretin fibrils extracted from patient heart.
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 40325 Reported Resolution (Å) 3.1 Resolution Method FSC 0.143 CUT-OFF Other Details RELION 4.0 Refinement Type Symmetry Type HELICAL Axial Symmetry C1 Axial Rise 4.81 Angular Rotation -1.26
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) 60
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 900 Maximum Defocus (nm) 2200 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 IMAGE ACQUISITION EPU MODEL REFINEMENT PHENIX
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details NONE