5H1B
Human RAD51 presynaptic complex
ELECTRON MICROSCOPY
| Sample |
|---|
| Human RAD51 and ssDNA formed presynaptic complex |
| Sample Components |
| Human RAD51 |
| ssDNA |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | FILAMENT |
| Vitrification Instrument | FEI VITROBOT MARK IV |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | HELICAL |
| Number of Particles | 33838 |
| Reported Resolution (Å) | 4.4 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | HELICAL |
| Axial Symmetry | C1 |
| Axial Rise | 15.88 |
| Angular Rotation | 56.77 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (1SZP) | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | |||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K2 SUMMIT (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 50 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | FEI TITAN KRIOS |
| Minimum Defocus (nm) | 1500 |
| 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 | 22500 |
| Calibrated Magnification | 22500 |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| IMAGE ACQUISITION | UCSFImage4 | |
| CTF CORRECTION | CTFFIND3 | |
| MODEL FITTING | Chimera | 1.9 |
| INITIAL EULER ASSIGNMENT | SPIDER | 20.02 |
| INITIAL EULER ASSIGNMENT | RELION | 1.2 |
| FINAL EULER ASSIGNMENT | SPIDER | 20.02 |
| FINAL EULER ASSIGNMENT | RELION | 1.2 |
| CLASSIFICATION | IMAGIC-4D | 110817 |
| RECONSTRUCTION | SPIDER | 20.02 |
| RECONSTRUCTION | RELION | 1.2 |
| MODEL REFINEMENT | Coot | 0.7.2 |
| MODEL REFINEMENT | PHENIX | 1.9 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING ONLY | 540 | |||
