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Cryo-EM structure of skeletal muscle alpha-actin
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6DJO
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 4.227 f_angle_d 0.493 f_chiral_restr 0.042 f_plane_restr 0.005 f_bond_d 0.002
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument LEICA EM GP Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method HELICAL Number of Particles 261195 Reported Resolution (Å) 3.37 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type HELICAL Axial Symmetry C1 Axial Rise 28 Angular Rotation -166
Map-Model Fitting and Refinement Id 1 (6DJO) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Overall B Value 90 Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 BIOQUANTUM (6k x 4k) Electron Dose (electrons/Å**2) 65
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 200 Maximum Defocus (nm) 1500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 81000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC IMAGE ACQUISITION EPU CTF CORRECTION cryoSPARC MODEL FITTING Coot MODEL REFINEMENT PHENIX INITIAL EULER ASSIGNMENT cryoSPARC FINAL EULER ASSIGNMENT cryoSPARC CLASSIFICATION cryoSPARC RECONSTRUCTION cryoSPARC
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details NONE Single Particle