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Cryo-EM structure of ALC1 bound to an asymmetric, site-specifically PARylated nucleosome
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7OTQ
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 23.8011 f_angle_d 0.9564 f_chiral_restr 0.065 f_plane_restr 0.0112 f_bond_d 0.0076
Sample Complex between ALC1 and a site-specifically PARylated nucleosome
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 212256 Reported Resolution (Å) 3 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (7OTQ) 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) 37.6
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 Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION Topaz 0.2.4 IMAGE ACQUISITION EPU MODEL FITTING ISOLDE 1.4 INITIAL EULER ASSIGNMENT RELION 3.1.3 FINAL EULER ASSIGNMENT cryoSPARC 3.3.1 CLASSIFICATION cryoSPARC 3.3.1 RECONSTRUCTION cryoSPARC 3.3.1 MODEL REFINEMENT PHENIX 1.20.1-4487
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details NONE