ELECTRON MICROSCOPY
| Sample |
|---|
| Escherichia coli KTE40 encapsulin-associated DyP peroxidase |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | FEI VITROBOT MARK IV |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | Grids were frozen with the following parameters: blot force 20, blot time 4 seconds, humidty 100 percent, 22 degrees C. |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 10490 |
| Reported Resolution (Å) | 3.31 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | Local refinement with D3 symmetry and force re-do GS-split applied. |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | D3 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | FLEXIBLE FIT | ||||
| Refinement Target | cross-correlation coefficient | ||||
| Overall B Value | 105.9 | ||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K2 SUMMIT (4k x 4k) | GATAN K2 SUMMIT (4k x 4k) | |||||||
| Electron Dose (electrons/Å**2) | 47.84 | 46.24 | |||||||
| Imaging Experiment | 1 | 2 |
|---|---|---|
| Date of Experiment | ||
| Temperature (Kelvin) | ||
| Microscope Model | FEI TALOS ARCTICA | TFS GLACIOS |
| Minimum Defocus (nm) | 1000 | 1000 |
| Maximum Defocus (nm) | 1800 | 1800 |
| Minimum Tilt Angle (degrees) | ||
| Maximum Tilt Angle (degrees) | ||
| Nominal CS | 2.7 | 2.7 |
| Imaging Mode | BRIGHT FIELD | BRIGHT FIELD |
| Specimen Holder Model | ||
| Nominal Magnification | 45000 | 45000 |
| Calibrated Magnification | ||
| Source | FIELD EMISSION GUN | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 200 | 200 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| PARTICLE SELECTION | cryoSPARC | 4.5.1 |
| IMAGE ACQUISITION | Leginon | |
| CTF CORRECTION | cryoSPARC | 4.5.1 |
| MODEL FITTING | UCSF ChimeraX | 1.8 |
| IMAGE ACQUISITION | Leginon | |
| MODEL REFINEMENT | PHENIX | 1.2.1-4887 |
| MODEL REFINEMENT | Coot | 0.9.8.1 |
| INITIAL EULER ASSIGNMENT | cryoSPARC | 4.5.1 |
| FINAL EULER ASSIGNMENT | cryoSPARC | 4.5.1 |
| RECONSTRUCTION | cryoSPARC | 4.5.1 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | 115178 | |||
