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Cryo-EM structure of the left-handed Di-tetrasome
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 31.062 f_angle_d 0.531 f_chiral_restr 0.032 f_bond_d 0.003 f_plane_restr 0.003
Sample A left-handed di-tetrasome Sample Components H3-H4 DNA
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK I Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 335568 Reported Resolution (Å) 3.5 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Correlation coefficient Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 50
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TECNAI ARCTICA Minimum Defocus (nm) 800 Maximum Defocus (nm) 1200 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) 200 Imaging Details
EM Software Task Software Package Version MODEL FITTING UCSF Chimera MODEL REFINEMENT PHENIX
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details NONE