Cryo-EM structure of the DCAF11 E3 ligase bound to the DDX18 helicase mediated by GSH-M12
ELECTRON MICROSCOPY
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| in silico model | AlphaFold | AF-Q8TEB1-F1-v4 | |
| experimental model | PDB | 5FQD | |
| in silico model | AlphaFold | AF-Q9NVP1-F1-v4 | |
Refinement
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| f_dihedral_angle_d | 5.5225 |
| f_angle_d | 0.7367 |
| f_chiral_restr | 0.0482 |
| f_plane_restr | 0.0104 |
| f_bond_d | 0.0035 |
| Sample |
|---|
| Ternary complex of the E3 ligase DCAF11 and the helicase DDX18 mediated by GSH-M12 |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | LEICA EM GP |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 136583 |
| Reported Resolution (Å) | 2.38 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | As in cryosparc |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C1 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (5FQD) | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | OTHER | ||||
| Refinement Target | real space correlation | ||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | TFS FALCON 4i (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 52.004 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | TFS KRIOS |
| Minimum Defocus (nm) | 600 |
| 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 |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| PARTICLE SELECTION | Topaz | 0.2.5a |
| MODEL REFINEMENT | PHENIX | 1.21.2_5419+SVN |
| CTF CORRECTION | cryoSPARC | 4.5.3 |
| INITIAL EULER ASSIGNMENT | cryoSPARC | 4.5.3 |
| FINAL EULER ASSIGNMENT | cryoSPARC | 4.5.3 |
| CLASSIFICATION | cryoSPARC | 4.5.3 |
| RECONSTRUCTION | cryoSPARC | 4.6.2 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | As implemented in cryosparc live | 3767503 | Topaz | |
