ELECTRON MICROSCOPY
| Sample |
|---|
| Spike protein of SARS-CoV2 with Fab fragment of enhancing antibody 8D2 |
| Sample Components |
| Spike protein of SARS-CoV2 |
| Fab fragment of enhancing antibody 8D2 |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 169524 |
| Reported Resolution (Å) | 3.53 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C1 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (7K8W) | 2 (5X8M) | |||
| Refinement Space | REAL | REAL | |||
| Refinement Protocol | RIGID BODY FIT | RIGID BODY FIT | |||
| Refinement Target | correlation | correlation | |||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | The protein was homology modeled using MODELLER software. Then, the model was fitted into Cryo-EM map. The loop region of NTD was remodeled by MODELLE ... | Variable domains were built by using a BCR modelling software. | |||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K3 BIOQUANTUM (6k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 50 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | FEI TITAN KRIOS |
| Minimum Defocus (nm) | |
| Maximum Defocus (nm) | |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 0.059 |
| 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 |
| PARTICLE SELECTION | cryoSPARC | 3.0.1 |
| IMAGE ACQUISITION | SerialEM | |
| CTF CORRECTION | cryoSPARC | 3.0.1 |
| MODEL FITTING | UCSF Chimera | |
| INITIAL EULER ASSIGNMENT | cryoSPARC | 3.0.1 |
| FINAL EULER ASSIGNMENT | cryoSPARC | 3.0.1 |
| CLASSIFICATION | cryoSPARC | 3.0.1 |
| RECONSTRUCTION | cryoSPARC | 3.0.1 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | 2135 | |||
