5AEF
Electron cryo-microscopy of an Abeta(1-42)amyloid fibril
ELECTRON MICROSCOPY
Sample |
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ABETA(1-42) AMYLOID-LIKE FIBRIL |
Specimen Preparation | |
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Sample Aggregation State | FILAMENT |
Vitrification Instrument | GATAN CRYOPLUNGE 3 |
Cryogen Name | ETHANE |
Sample Vitrification Details | 4 SEC BACKSIDE BLOTTING |
3D Reconstruction | |
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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 | |||||
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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 | |||||||||
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Detector Type | KODAK SO-163 FILM | ||||||||
Electron Dose (electrons/Å**2) | 30 |
Imaging Experiment | 1 |
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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 | ||
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Task | Software Package | Version |
RECONSTRUCTION | FREALIX |
Image Processing | ||||
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CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
INDIVIDUAL HELICAL SUBUNITS |