ELECTRON MICROSCOPY
Refinement
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| f_dihedral_angle_d | 5.577 |
| f_angle_d | 0.428 |
| f_chiral_restr | 0.028 |
| f_bond_d | 0.002 |
| f_plane_restr | 0.002 |
| Sample |
|---|
| self-assembled SSNA-1 filaments |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | FILAMENT |
| Vitrification Instrument | LEICA EM GP |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | After 1 min incubation at room temperature, the grid was manually blotted on the side of the grid with filter paper (Whatman Grade 1, Cytiva #1001-055 ... |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | HELICAL |
| Number of Particles | 80664 |
| Reported Resolution (Å) | 4.55 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | no helical parameters used |
| Refinement Type | |
| Symmetry Type | HELICAL |
| Axial Symmetry | C8 |
| Axial Rise | 112 |
| Angular Rotation | 45 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | OTHER | ||||
| Refinement Target | |||||
| Overall B Value | 265.8 | ||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K3 BIOCONTINUUM (6k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 40.84 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | FEI TITAN KRIOS |
| Minimum Defocus (nm) | 500 |
| Maximum Defocus (nm) | 2300 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | FEI TITAN KRIOS AUTOGRID HOLDER |
| Nominal Magnification | 105000 |
| Calibrated Magnification | |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| PARTICLE SELECTION | cryoSPARC | 4.5.3 |
| IMAGE ACQUISITION | EPU | |
| CTF CORRECTION | cryoSPARC | 4.5.3 |
| MODEL FITTING | Coot | 0.9.6 |
| MODEL REFINEMENT | PHENIX | 1.21_5207+SVN |
| INITIAL EULER ASSIGNMENT | cryoSPARC | 4.5.3 |
| FINAL EULER ASSIGNMENT | cryoSPARC | 4.5.3 |
| CLASSIFICATION | cryoSPARC | 4.5.3 |
| RECONSTRUCTION | cryoSPARC | 4.5.3 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| NONE | 888099 | |||
