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The structure of the native cardiac thin filament troponin core in Ca2+-free state from the lower strand
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7KO4 experimental model PDB 7UTL experimental model PDB 8DDO
Sample thin filament troponin core complex
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 91835 Reported Resolution (Å) 5.3 Resolution Method FSC 0.143 CUT-OFF Other Details Filtered to 8A Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (7KO4, 7UTL, 8DDO) Refinement Space REAL 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 KRIOS Minimum Defocus (nm) 500 Maximum Defocus (nm) 3500 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 PHENIX 1.2 INITIAL EULER ASSIGNMENT RELION 3.08 FINAL EULER ASSIGNMENT RELION 3.08 CLASSIFICATION RELION 3.08 RECONSTRUCTION RELION 3.08 MODEL REFINEMENT PHENIX 1.2
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 7379204