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Cryo-EM structure of human nucleosome core particle composed of the Widom 601L DNA sequence
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3AFA experimental model PDB 3UT9
Sample Human nucleosome core particle composed of the Widom 601L DNA sequence
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE-PROPANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 1072815 Reported Resolution (Å) 1.89 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C2
Map-Model Fitting and Refinement Id 1 (3AFA, 3AFA, 3AFA, 3AFA, 3AFA, 3AFA, 3AFA, 3AFA, 3UT9, 3UT9) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 BIOQUANTUM (6k x 4k) Electron Dose (electrons/Å**2) 67.2
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 300 Maximum Defocus (nm) 1200 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 130000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version CTF CORRECTION CTFFIND 4.1.14 MODEL FITTING PHENIX 1.19.2 INITIAL EULER ASSIGNMENT RELION 3.1.1 FINAL EULER ASSIGNMENT RELION 3.1.1 CLASSIFICATION RELION 3.1.1 RECONSTRUCTION RELION 3.1.1 MODEL REFINEMENT Coot 0.9
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 2906016