10DW | pdb_000010dw

Structure of CRBN/DDB1dB-KAT2A-Compound4 ternary complex


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d4.774
f_angle_d0.501
f_chiral_restr0.043
f_plane_restr0.004
f_bond_d0.002
Sample
Compound 4 induced DDB1dB/CRBN, KAT2A-NTD ternary complex
Sample Components
DDB1dB/CRBN
KAT2A N-terminal domain
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentLEICA EM GP
Cryogen NameETHANE
Sample Vitrification DetailsGrids were vitrified using a Leica EM GP plunge freezer operated at 90% humidity and 10C. Grids were first pre-incubated with 4uL of 10uM CRBN-agnosti ...Grids were vitrified using a Leica EM GP plunge freezer operated at 90% humidity and 10C. Grids were first pre-incubated with 4uL of 10uM CRBN-agnostic IKZF1_140-196_Q146A,G151N for 1 minute and then back-blotted for 4s. Afterwards, 4uL of mixture was applied to the grids, followed by blotting for 4s and plunging into liquid ethane at -181 C.
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles613163
Reported Resolution (Å)2.9
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeTFS FALCON 4i (4k x 4k)
Electron Dose (electrons/Å**2)55.8
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)800
Maximum Defocus (nm)2000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification165000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging DetailsThe grid was imaged at a 30-degree tilt
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONTopaz
MODEL REFINEMENTPHENIX1.21.2_5419
CTF CORRECTIONcryoSPARC
INITIAL EULER ASSIGNMENTcryoSPARC
FINAL EULER ASSIGNMENTcryoSPARC
RECONSTRUCTIONcryoSPARC
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION