7S9Y
Helicobacter Hepaticus CcsBA Open Conformation
ELECTRON MICROSCOPY
| Sample |
|---|
| Complex of CcsBA with two hemes present |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | FEI VITROBOT MARK IV |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | Blot for 2 seconds at a blot force of -1 and plunge frozen |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 140727 |
| Reported Resolution (Å) | 3.56 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C1 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | FLEXIBLE FIT | ||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | De novo modelling was undertaken using COOT. Both Phenix and ISOLDE were used for refinement | ||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K2 QUANTUM (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 66 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | TFS KRIOS |
| Minimum Defocus (nm) | 1000 |
| Maximum Defocus (nm) | 2500 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 0.01 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | FEI TITAN KRIOS AUTOGRID HOLDER |
| Nominal Magnification | 105000 |
| Calibrated Magnification | 105000 |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details | Preliminary grid screening was performed manually. |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| PARTICLE SELECTION | cryoSPARC | 3.2 |
| IMAGE ACQUISITION | EPU | 2.10.0.1941 |
| CTF CORRECTION | cryoSPARC | 3.2 |
| MODEL FITTING | Coot | 0.8.9.2 |
| INITIAL EULER ASSIGNMENT | cryoSPARC | 3.2 |
| FINAL EULER ASSIGNMENT | cryoSPARC | 3.2 |
| CLASSIFICATION | cryoSPARC | 3.2 |
| RECONSTRUCTION | cryoSPARC | 3.2 |
| MODEL REFINEMENT | PHENIX | 1.17.1 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | 1778157 | Initial particle picking was accomplished using blob picker in cryoSPARC. Picked particles were then subjected to 2D classification. Once converged, a sub-set of 2D classes were manually picked and reclassified using a smaller number of classes. | ||
