5AEF
Electron cryo-microscopy of an Abeta(1-42)amyloid fibril
ELECTRON MICROSCOPY
| Sample |
|---|
| ABETA(1-42) AMYLOID-LIKE FIBRIL |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | FILAMENT |
| Vitrification Instrument | GATAN CRYOPLUNGE 3 |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | 4 SEC BACKSIDE BLOTTING |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | HELICAL |
| Number of Particles | 62320 |
| Reported Resolution (Å) | 5 |
| Resolution Method | |
| Other Details | FINAL MAP WAS CALCULATED FROM 29 SINGLE FILAMENT RECONSTRUCTIONS. DATA USED FOR REFINEMENT WAS NEVER BELOW 10 ANGSTROM RESOLUTION. RESOLUTION OF FIBRI ... |
| Refinement Type | |
| Symmetry Type | HELICAL |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | OTHER | ||||
| Refinement Target | ELECTRON DENSITY | ||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | METHOD--DIREX REFINEMENT PROTOCOL--PEPTIDE CHAIN | ||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | KODAK SO-163 FILM | ||||||||
| Electron Dose (electrons/Å**2) | 30 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2010-02-05 |
| Temperature (Kelvin) | 100 |
| Microscope Model | FEI TECNAI F30 |
| Minimum Defocus (nm) | 1750 |
| Maximum Defocus (nm) | 3000 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | |
| Nominal Magnification | 59000 |
| Calibrated Magnification | 58333 |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| RECONSTRUCTION | FREALIX | |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| INDIVIDUAL HELICAL SUBUNITS | ||||
