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Cryo-EM structure of the basal state of the Artemis:DNA-PKcs complex (see COMPND 13/14)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 5LUQ
Sample A complex of Artemis:DNA-PKcs
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details Plunge-freeze was performed using a home-made manual plunger at typical indoor humidity (Los Angeles, CA) and at room temperature.
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 103485 Reported Resolution (Å) 3.33 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (5LUQ) Refinement Space REAL Refinement Protocol OTHER Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 BIOQUANTUM (6k x 4k) Electron Dose (electrons/Å**2) 60
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 750 Maximum Defocus (nm) 3000 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 81000 Calibrated Magnification 46296 Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION DigitalMicrograph 3.32.2403.0 MODEL FITTING Coot 0.9.6 MODEL REFINEMENT PHENIX dev-4383-000 RECONSTRUCTION cryoSPARC 3.2.0+210511
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION