☰ Navigation Tabs
Cryo-EM structure of ncBAF bound to the nucleosome
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7Y8R in silico model AlphaFold
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 23.133 f_angle_d 0.545 f_chiral_restr 0.037 f_plane_restr 0.004 f_bond_d 0.003
Sample The ncBAF-NCP complex Sample Components The ncBAF complex Nucleosome The ATPase domain of SMARCA4 The ARP module
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 22221 Reported Resolution (Å) 4.7 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (7Y8R) Refinement Space Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value Fitting Procedure Details We docked the AlphaFold3-predicted ARP module and refined ATPase-NCP model by rigid body fit, due to the limited resolution.
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 50
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 1000 Maximum Defocus (nm) 1800 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 64000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION Gautomatch 0.56 IMAGE ACQUISITION EPU CTF CORRECTION CTFFIND 4 MODEL FITTING UCSF ChimeraX RECONSTRUCTION cryoSPARC 4.5.3
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 14128693