4D3E
Tetramer of IpaD, modified from 2J0O, fitted into negative stain electron microscopy reconstruction of the wild type tip complex from the type III secretion system of Shigella flexneri
ELECTRON MICROSCOPY
| Sample |
|---|
| WILD-TYPE T3SS NEEDLE COMPLEX |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Staining Type | NEGATIVE |
| Staining Material | uranyl acetate |
| Staining Details | |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 2963 |
| Reported Resolution (Å) | 24 |
| Resolution Method | |
| Other Details | THIS MODEL IS RESULT OF RIGID-BODY TRANSFORMATION OF AN EXISTING PDB MODEL, CONSTRAINED BY A 24 A RESOLUTION EM MAP AND SOME CYSTEINE-MEDIATED CROSSLI ... |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C1 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (2J0O) | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | OTHER | ||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | METHOD--SEE PUBLICATION REFINEMENT PROTOCOL--X-RAY | ||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | FEI EAGLE (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 90 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2011-08-31 |
| Temperature (Kelvin) | |
| Microscope Model | FEI TECNAI 20 |
| Minimum Defocus (nm) | 1200 |
| Maximum Defocus (nm) | 1600 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | |
| Nominal Magnification | 50000 |
| Calibrated Magnification | 70754 |
| Source | LAB6 |
| Acceleration Voltage (kV) | 200 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| MODEL FITTING | UCSF Chimera | |
| RECONSTRUCTION | EMAN | 2 |
| RECONSTRUCTION | SPIDER | |
