8V4N
Myxococcus xanthus EncA 3xHis pore mutant with T=1 icosahedral symmetry
ELECTRON MICROSCOPY
| Sample |
|---|
| Myxococcus xanthus EncA 3xHis pore mutant with T=1 icosahedral symmetry |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | FEI VITROBOT MARK IV |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | Blot force: 5 Blot time: 2 seconds |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 77769 |
| Reported Resolution (Å) | 2.43 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | I |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | FLEXIBLE FIT | ||||
| Refinement Target | Cross-correlation coefficient | ||||
| Overall B Value | 98.5 | ||||
| Fitting Procedure | |||||
| Details | The starting model was generated using ESMfold then fit into the map using ChimeraX. The placed coordinates were then manually refined using Coot, fol ... | ||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K3 BIOQUANTUM (6k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 50 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | FEI TITAN KRIOS |
| Minimum Defocus (nm) | 1000 |
| Maximum Defocus (nm) | 2500 |
| 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 | 105000 |
| Calibrated Magnification | |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| PARTICLE SELECTION | cryoSPARC | 4.2.1 |
| IMAGE ACQUISITION | SerialEM | |
| CTF CORRECTION | cryoSPARC | 4.2.1 |
| MODEL FITTING | UCSF ChimeraX | 1.25 |
| INITIAL EULER ASSIGNMENT | cryoSPARC | 4.2.1 |
| FINAL EULER ASSIGNMENT | cryoSPARC | 4.2.1 |
| RECONSTRUCTION | cryoSPARC | 4.2.1 |
| MODEL REFINEMENT | Coot | 0.9.8.1 |
| MODEL REFINEMENT | PHENIX | 1.20.1-4487 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | 119633 | |||
