8QP0
A hexamer pore in the S-layer of Sulfolobus acidocaldarius formed by SlaA protein
ELECTRON MICROSCOPY
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 7ZCX | |
Refinement
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| f_dihedral_angle_d | 5.286 |
| f_angle_d | 0.676 |
| f_chiral_restr | 0.045 |
| f_plane_restr | 0.005 |
| f_bond_d | 0.002 |
| Sample |
|---|
| S-layer of Sulfolobus acidocaldarius |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | 3D ARRAY |
| Vitrification Instrument | |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SUBTOMOGRAM AVERAGING |
| Number of Particles | 2271 |
| Reported Resolution (Å) | 11.2 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C3 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (7ZCX) | ||||
| Refinement Space | |||||
| Refinement Protocol | |||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | TFS FALCON 4i (4k x 4k) | GATAN K2 SUMMIT (4k x 4k) | |||||||
| Electron Dose (electrons/Å**2) | 2.02 | 2.02 | |||||||
| Imaging Experiment | 1 | 2 |
|---|---|---|
| Date of Experiment | ||
| Temperature (Kelvin) | ||
| Microscope Model | FEI TITAN KRIOS | TFS TALOS |
| Minimum Defocus (nm) | 4000 | 4000 |
| Maximum Defocus (nm) | 6000 | 6000 |
| Minimum Tilt Angle (degrees) | ||
| Maximum Tilt Angle (degrees) | ||
| Nominal CS | 2.7 | 2.7 |
| Imaging Mode | BRIGHT FIELD | BRIGHT FIELD |
| Specimen Holder Model | FEI TITAN KRIOS AUTOGRID HOLDER | FEI TITAN KRIOS AUTOGRID HOLDER |
| Nominal Magnification | ||
| Calibrated Magnification | ||
| Source | FIELD EMISSION GUN | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 | 200 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| IMAGE ACQUISITION | FEI tomography | 4 |
| CTF CORRECTION | Warp | 1.0.9 |
| IMAGE ACQUISITION | FEI tomography | 4 |
| FINAL EULER ASSIGNMENT | Warp | 1.0.9 |
| RECONSTRUCTION | Warp | 1.0.9 |
| 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 | ||||
