ELECTRON MICROSCOPY
| Sample |
|---|
| Methyl-coenzyme M reductase activation complex without A2 component |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | 3D ARRAY |
| Vitrification Instrument | FEI VITROBOT MARK IV |
| Cryogen Name | ETHANE-PROPANE |
| Sample Vitrification Details | Vitrification setup inside a Coy Lab's Vinyl Anaerobic Chamber to preserve the protein sample under strict anaerobic conditions (95% O2 / 5% H2). |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 349437 |
| Reported Resolution (Å) | 2.78 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | AB INITIO MODEL | ||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | Rigid body fitting in Chimera and Coot. Further real-space refinement in Phenix. | ||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | FEI FALCON IV (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 60 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | TFS KRIOS |
| Minimum Defocus (nm) | 500 |
| Maximum Defocus (nm) | 2000 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2.7 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | |
| Nominal Magnification | 165000 |
| Calibrated Magnification | |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| PARTICLE SELECTION | cryoSPARC | v4 |
| IMAGE ACQUISITION | cryoSPARC | v4 |
| CTF CORRECTION | cryoSPARC | |
| MODEL FITTING | UCSF Chimera | 1.17.3 |
| MODEL FITTING | Coot | |
| MODEL REFINEMENT | PHENIX | |
| CLASSIFICATION | cryoSPARC | |
| RECONSTRUCTION | cryoSPARC | |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | 1557902 | 1023667 from non tilted and 534235 from pretilted datasets | ||
