8UZ1
Straight actin filament from Arp2/3 branch junction sample (ADP-BeFx)
ELECTRON MICROSCOPY
| Sample |
|---|
| Arp2/3 branch complex (ADP-BeFx state) |
| Sample Components |
| Arp2/3 complex |
| Actin |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | FEI VITROBOT MARK IV |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | The samples were incubated on the grid for 50 s and the extra solution was blotted using two Vitrobot filter papers (0.55/20 mm, Grade 595, Ted Pella) ... |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | HELICAL |
| Number of Particles | 543085 |
| Reported Resolution (Å) | 3.6 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | For the final 3D reconstruction, no helical symmetry was applied |
| Refinement Type | |
| Symmetry Type | HELICAL |
| Axial Symmetry | C1 |
| Axial Rise | 27.38 |
| Angular Rotation | -166.74 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 | ||||
| Refinement Space | |||||
| Refinement Protocol | |||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K3 (6k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 51.4 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | FEI TITAN KRIOS |
| Minimum Defocus (nm) | 1200 |
| Maximum Defocus (nm) | 2500 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2.7 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | FEI TITAN KRIOS AUTOGRID HOLDER |
| Nominal Magnification | 64000 |
| Calibrated Magnification | |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details | The vitrified grids were screened for sample homogeneity and ice thickness in a Glacios 200 kV transmission electron microscope equipped with Gatan K2 summit camera. Electron micrographs for image reconstructions were collected using Titan Krios equipped with X-cold field emission gun at 300 kV, Gatan image filter with slit width of 20 eV and a nanoprobe. |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| IMAGE ACQUISITION | SerialEM | |
| FINAL EULER ASSIGNMENT | cryoSPARC | 3.0 |
| CLASSIFICATION | cryoSPARC | 3.0 |
| RECONSTRUCTION | cryoSPARC | 3.0 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | 1611831 | |||
