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The cryo-EM structure of nucleosome-bound DNA methyltransferases DNMT3A2 and DNMT3L
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4RER experimental model PDB 6CMO experimental model PDB 6H16
Sample Nucleosome-bound DNA methyltransferases DNMT3A2 and DNMT3L Sample Components Nucleosome human DNA methyltransferase 3A2 and 3L complex
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 625915 Reported Resolution (Å) 3.1 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (6pa7, 4u7p) Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 60
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 1000 Maximum Defocus (nm) 3000 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC 4.6 IMAGE ACQUISITION SerialEM CTF CORRECTION cryoSPARC 4.6 MODEL FITTING UCSF Chimera v1.18 MODEL FITTING PHENIX INITIAL EULER ASSIGNMENT cryoSPARC 4.6 FINAL EULER ASSIGNMENT cryoSPARC 4.6 RECONSTRUCTION cryoSPARC 4.6 MODEL REFINEMENT PHENIX
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 10464848