3J89
Structural Plasticity of Helical Nanotubes Based on Coiled-Coil Assemblies
ELECTRON MICROSCOPY
Sample |
---|
Helical nanotube formed from a 29-residue peptide |
Specimen Preparation | |
---|---|
Sample Aggregation State | HELICAL ARRAY |
Vitrification Instrument | FEI VITROBOT MARK IV |
Cryogen Name | ETHANE |
Sample Vitrification Details | Plunged into liquid ethane (FEI VITROBOT MARK IV) |
3D Reconstruction | |
---|---|
Reconstruction Method | HELICAL |
Number of Particles | |
Reported Resolution (Å) | 3.6 |
Resolution Method | OTHER |
Other Details | Both FSC and comparison with atomic model used for resolution determination. |
Refinement Type | |
Symmetry Type | HELICAL |
Axial Symmetry | C1 |
Axial Rise | 2.2 |
Angular Rotation | 87.1 |
Data Acquisition | |||||||||
---|---|---|---|---|---|---|---|---|---|
Detector Type | FEI FALCON II (4k x 4k) | ||||||||
Electron Dose (electrons/Å**2) | 10 |
Imaging Experiment | 1 |
---|---|
Date of Experiment | 2013-08-01 |
Temperature (Kelvin) | |
Microscope Model | FEI TITAN KRIOS |
Minimum Defocus (nm) | 1400 |
Maximum Defocus (nm) | 4400 |
Minimum Tilt Angle (degrees) | |
Maximum Tilt Angle (degrees) | |
Nominal CS | 2.7 |
Imaging Mode | BRIGHT FIELD |
Specimen Holder Model | |
Nominal Magnification | |
Calibrated Magnification | |
Source | FIELD EMISSION GUN |
Acceleration Voltage (kV) | 300 |
Imaging Details |
EM Software | ||
---|---|---|
Task | Software Package | Version |
RECONSTRUCTION | SPIDER |
Image Processing | ||||
---|---|---|---|---|
CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
micrographs multiplied by CTF |