Normal mode-based flexible fitted coordinates of a non-translocating SecYEG protein-conducting channel into the cryo-EM map of a SecYEG-nascent chain-70S ribosome complex from E. coli
ELECTRON MICROSCOPY
| Sample |
|---|
| protein-conducting channel |
| Sample Components |
| protein translocase activity |
| protein translocase activity |
| protein translocase activity |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | HOMEMADE PLUNGER |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 53325 |
| Reported Resolution (Å) | 14.9 |
| Resolution Method | FSC 0.5 CUT-OFF |
| Other Details | The resolution is based on FSC at 0.5 cut-off |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C1 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | FLEXIBLE FIT | ||||
| Refinement Target | correlation coefficient, R-factor | ||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | METHOD--normal mode-based flexible fitting REFINEMENT PROTOCOL--normal mode-based flexible fitting, real space refinement | ||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | KODAK SO-163 FILM | ||||||||
| Electron Dose (electrons/Å**2) | 11 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2004-03-09 |
| Temperature (Kelvin) | 93 |
| Microscope Model | FEI TECNAI F30 |
| Minimum Defocus (nm) | 1500 |
| Maximum Defocus (nm) | 4300 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2.26 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | OTHER |
| Nominal Magnification | 39000 |
| Calibrated Magnification | 39000 |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| MODEL FITTING | RSR2000 | |
| RECONSTRUCTION | SPIDER | |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| defocus groups | ||||
