3J6J
3.6 Angstrom resolution MAVS filament generated from helical reconstruction
ELECTRON MICROSCOPY
Refinement
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| f_dihedral_angle_d | 14.668 |
| f_angle_d | 1.257 |
| f_chiral_restr | 0.051 |
| f_bond_d | 0.007 |
| f_plane_restr | 0.005 |
| Sample |
|---|
| MAVS filament |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | FILAMENT |
| Vitrification Instrument | FEI VITROBOT MARK I |
| Cryogen Name | NITROGEN |
| Sample Vitrification Details | Plunged in liquid nitrogen (FEI VITROBOT MARK I) |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | HELICAL |
| Number of Particles | |
| Reported Resolution (Å) | 3.64 |
| Resolution Method | FSC 0.5 CUT-OFF |
| Other Details | The electron density map of the filament was reconstructed using a helical geometrically constrained reconstruction approach (Helicon). |
| Refinement Type | |
| Symmetry Type | HELICAL |
| Axial Symmetry | C1 |
| Axial Rise | 5.13 |
| Angular Rotation | 101.1 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 | ||||
| Refinement Space | RECIPROCAL | ||||
| Refinement Protocol | RIGID BODY FIT | ||||
| Refinement Target | Cross-correlation coefficient | ||||
| Overall B Value | 136.08 | ||||
| Fitting Procedure | |||||
| Details | METHOD--local refinement REFINEMENT PROTOCOL--rigid body with TLS | ||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K2 (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 31 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2013-08-10 |
| Temperature (Kelvin) | |
| Microscope Model | FEI TECNAI F20 |
| Minimum Defocus (nm) | |
| Maximum Defocus (nm) | |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | GATAN LIQUID NITROGEN |
| Nominal Magnification | 29000 |
| Calibrated Magnification | 40410 |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 200 |
| Imaging Details | Movies were recorded at liquid nitrogen temperature with a K2 Summit direct detector device camera operated in super-resolution mode with dose-fractionation. |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| MODEL FITTING | PHENIX | |
| RECONSTRUCTION | Helicon | |
