Structure of the bacterial ribosome complexed by tmRNA-SmpB and EF-G during translocation and MLD-loading
ELECTRON MICROSCOPY
| Sample |
|---|
| Ribosomal complex 70S-tmRNA-SmpB-tRNA-EFG-GDP-FA |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | FEI VITROBOT MARK I |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | blot for 5-10 seconds before plunging into liquid ethane (FEI Vitrobot) |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 68843 |
| Reported Resolution (Å) | 8.3 |
| Resolution Method | |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C1 |
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | KODAK SO-163 FILM | ||||||||
| Electron Dose (electrons/Å**2) | 20 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2009-12-08 |
| Temperature (Kelvin) | 77 |
| Microscope Model | FEI POLARA 300 |
| Minimum Defocus (nm) | 2500 |
| Maximum Defocus (nm) | 5000 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | |
| Nominal Magnification | 39000 |
| Calibrated Magnification | 39000 |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| MODEL FITTING | UCSF Chimera | |
| RECONSTRUCTION | SPIDER | |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| The volumes were CTF-corrected in defocus groups, with an average of approximately 215 individual images per group | ||||
