Filaments from Ignicoccus hospitalis Show Diversity of Packing in Proteins Containing N-terminal Type IV Pilin Helices
ELECTRON MICROSCOPY
| Sample |
|---|
| Adhesion filament |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | FILAMENT |
| Vitrification Instrument | HOMEMADE PLUNGER |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | HELICAL |
| Number of Particles | |
| Reported Resolution (Å) | 7.5 |
| Resolution Method | |
| Other Details | |
| Refinement Type | |
| Symmetry Type | HELICAL |
| Axial Symmetry | C1 |
| Axial Rise | 5.3 |
| Angular Rotation | 106.65 |
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | KODAK SO-163 FILM | ||||||||
| Electron Dose (electrons/Å**2) | |||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2011-01-01 |
| Temperature (Kelvin) | |
| Microscope Model | FEI TECNAI F20 |
| Minimum Defocus (nm) | 1700 |
| Maximum Defocus (nm) | 3400 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | GATAN LIQUID NITROGEN |
| Nominal Magnification | 55000 |
| Calibrated Magnification | |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 200 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| RECONSTRUCTION | IHRSR | |
| RECONSTRUCTION | SPIDER | |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| Each image was multiplied by the CTF. The final volume was amplitude-corrected in Fourier space by dividing by the sum of the squared CTFs. | ||||
