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Structure of the native cardiac thin filament at pCa=5.8 having upper Tn in Ca2+ free state and lower Tn in Ca2+ bound state
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6KN7 experimental model PDB 6KN8
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 5.527 f_angle_d 1.117 f_chiral_restr 0.056 f_bond_d 0.009 f_plane_restr 0.006
Sample Structure of Ca2+ free / Ca2+ bound cardiac native thin filament at pCa=5.8 mode 1
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 23874 Reported Resolution (Å) 8.3 Resolution Method FSC 0.143 CUT-OFF Other Details The map is filtered to 11A Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (6KN7, 6KN8) Refinement Space Refinement Protocol FLEXIBLE FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 34
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN Minimum Defocus (nm) Maximum Defocus (nm) 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 3.08 CTF CORRECTION RELION 3.08 MODEL FITTING UCSF Chimera MODEL REFINEMENT PHENIX INITIAL EULER ASSIGNMENT RELION 3.08 FINAL EULER ASSIGNMENT RELION 3.08 CLASSIFICATION RELION 3.08
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION