7BKP
CryoEM structure of disease related M854K MDA5-dsRNA filament in complex with ATP
ELECTRON MICROSCOPY
Refinement
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| f_dihedral_angle_d | 15.021 |
| f_angle_d | 0.7543 |
| f_chiral_restr | 0.0483 |
| f_bond_d | 0.0092 |
| f_plane_restr | 0.0038 |
| Sample |
|---|
| M854K MDA5-dsRNA filament in complex with ATP |
| Sample Components |
| INTERFERON-INDUCED HELICASE C DOMAIN-CONTAINING PROTEIN |
| RNA |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | FILAMENT |
| Vitrification Instrument | FEI VITROBOT MARK IV |
| Cryogen Name | ETHANE-PROPANE |
| Sample Vitrification Details | Grids were blotted for 3 s; blot force 10, 5, 0, -5, -10 |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | HELICAL |
| Number of Particles | 383128 |
| Reported Resolution (Å) | 2.8 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | HELICAL |
| Axial Symmetry | C1 |
| Axial Rise | 43.92 |
| Angular Rotation | 74.63 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (6G19) | ||||
| Refinement Space | RECIPROCAL | ||||
| Refinement Protocol | OTHER | ||||
| Refinement Target | Correlation coefficient | ||||
| Overall B Value | 50 | ||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K3 (6k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 40 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | FEI TITAN KRIOS |
| Minimum Defocus (nm) | -1200 |
| Maximum Defocus (nm) | -2500 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2.7 |
| Imaging Mode | DARK FIELD |
| Specimen Holder Model | FEI TITAN KRIOS AUTOGRID HOLDER |
| Nominal Magnification | |
| Calibrated Magnification | |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| PARTICLE SELECTION | RELION | 3.1 |
| IMAGE ACQUISITION | EPU | |
| CTF CORRECTION | CTFFIND | |
| MODEL FITTING | UCSF Chimera | 1.13.1 |
| MODEL REFINEMENT | PHENIX | 1.18.2 |
| INITIAL EULER ASSIGNMENT | RELION | 3.1 |
| FINAL EULER ASSIGNMENT | RELION | 3.1 |
| CLASSIFICATION | RELION | 3.1 |
| RECONSTRUCTION | RELION | 3.1 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | 1068108 | |||
