ELECTRON MICROSCOPY

Sample

RAD51B-RAD51C-RAD51D-XRCC2 (BCDX2)

Specimen Preperation
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 87572
Reported Resolution (Å) 3.4
Resolution Method FSC 0.143 CUT-OFF
Other Details Map was enhanced using DeepEMhancer
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol ?
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details AlphaFold2 monomer predictions of RAD51B, RAD51C, RAD51D and XRCC2 were docked into the EM density using Dock and Rebuild in Phenix. ATP and Mg2+ were added, and the coordinates were iteratively real space refined using Phenix and manually modified in COOT
Data Acquisition
Detector Type GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å2) 47
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1500
Maximum Defocus (nm) 3500
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 ?
Imaging Experiment
Task Software Package Version
IMAGE ACQUISITION EPU 2.10
CTF CORRECTION CTFFIND 4
MODEL FITTING PHENIX 1.2
MODEL REFINEMENT PHENIX 1.2
MODEL REFINEMENT Coot 0.9.8.7
INITIAL EULER ASSIGNMENT RELION 4.0
FINAL EULER ASSIGNMENT RELION 4.0
CLASSIFICATION RELION 4
RECONSTRUCTION RELION 4.0
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?
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