ELECTRON MICROSCOPY

Sample

Ternary complex of dHTC1 induced DDB1dB/CRBN, ENL YEATS complex

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument LEICA EM GP
Cryogen Name ETHANE
Sample Vitrification Details Grids were vitrified using a Leica EM GP plunge freezer operated at 90% humidity and 10 C. Grids were first pre-incubated with 4 uL of 10 uM CRBN-agnostic IKZF1_140-196_Q146A,G151N for 1 minute and then blotted from behind for 4 s. Immediately, 4 uL of mixturewas applied to the grids before blotting for 4 s and plunging into liquid ethane at -181 C
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 185312
Reported Resolution (Å) 2.9
Resolution Method FSC 0.143 CUT-OFF
Other Details ?
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space ?
Refinement Protocol ?
Refinement Target ?
Overall B Value 119.8
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type TFS FALCON 4i (4k x 4k)
Electron Dose (electrons/Å2) 52.0
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model TFS KRIOS
Minimum Defocus (nm) 800
Maximum Defocus (nm) 2000
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 165000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION Topaz 0.2.5a
IMAGE ACQUISITION EPU 3.7
CTF CORRECTION cryoSPARC 4.5.3
MODEL FITTING ISOLDE 1.6.0
MODEL FITTING Coot 0.9.8.0
MODEL FITTING UCSF ChimeraX 1.6.1
MODEL FITTING Rosetta 3.13
INITIAL EULER ASSIGNMENT cryoSPARC 4.5.3
FINAL EULER ASSIGNMENT cryoSPARC 4.5.3
CLASSIFICATION cryoSPARC 4.5.3
RECONSTRUCTION cryoSPARC 4.5.3
MODEL REFINEMENT PHENIX 1.19.2-4158
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?
Feedback Form
Name
Email
Institute
Feedback