3J9I
Thermoplasma acidophilum 20S proteasome
ELECTRON MICROSCOPY
| Sample |
|---|
| Thermoplasma acidophilum 20S proteasome |
| Sample Components |
| proteasome alpha subunit |
| proteasome beta subunit |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | FEI VITROBOT MARK III |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | Plunged into liquid ethane (FEI VITROBOT MARK III) |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 126729 |
| Reported Resolution (Å) | 3.3 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | Gold Standard FSC, imposed symmetry: D7 |
| Refinement Type | HALF-MAPS REFINED INDEPENDENTLY |
| Symmetry Type | POINT |
| Point Symmetry | D7 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (1PMA) | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | FLEXIBLE FIT | ||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | REFINEMENT PROTOCOL--Flexible | ||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K2 (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 20 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2012-06-01 |
| Temperature (Kelvin) | |
| Microscope Model | FEI POLARA 300 |
| Minimum Defocus (nm) | 800 |
| Maximum Defocus (nm) | 1900 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | |
| Nominal Magnification | 31000 |
| Calibrated Magnification | |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| MODEL FITTING | MDFF | |
| MODEL FITTING | UCSF Chimera | |
| RECONSTRUCTION | FREALIGN | |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| Each Particle | ||||
