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Helical Reconstruction of the Complex of Pseudo-Acetylated Human Cardiac Actin (K326/328Q) and Tropomyosin
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 9ZBL
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 5.55 f_angle_d 0.574 f_chiral_restr 0.043 f_bond_d 0.004 f_plane_restr 0.003
Sample Complex of K326/K328Q Cardiac F-Actin Containing Mg-ADP with Tropomyosin
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details Blotting was performed with a blot force of 3 and a blot time of 3 s.
3D Reconstruction Reconstruction Method HELICAL Number of Particles 1327189 Reported Resolution (Å) 3.12 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type HELICAL Axial Symmetry C3 Axial Rise 27.5 Angular Rotation -166.53
Map-Model Fitting and Refinement Id 1 (9zbl) Refinement Space Refinement Protocol FLEXIBLE FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON IV (4k x 4k) Electron Dose (electrons/Å**2) 50.69
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS GLACIOS Minimum Defocus (nm) 800 Maximum Defocus (nm) 2500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model OTHER Nominal Magnification 130000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC v4.5.3 IMAGE ACQUISITION cryoSPARC v4.5.3 CTF CORRECTION cryoSPARC v4.5.3 MODEL FITTING MDFF 1.9.4a53 MODEL REFINEMENT PHENIX 2.0.5867 CLASSIFICATION cryoSPARC v4.5.3 RECONSTRUCTION cryoSPARC v4.5.3
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 2346242