7TPR
Camel nanobodies 7A3 and 8A2 broadly neutralize SARS-CoV-2 variants
ELECTRON MICROSCOPY
Refinement
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| f_dihedral_angle_d | 10.804 |
| f_angle_d | 0.578 |
| f_chiral_restr | 0.045 |
| f_bond_d | 0.004 |
| f_plane_restr | 0.004 |
| Sample |
|---|
| Ternary complex of SARS-Cov-2 Spike protein ectodomain (Wuhan strain) and camel nanobodies 7A3 and 8A2. |
| Sample Components |
| SARS-CoV-2 Spike glycoprotein |
| Camel nanobody 8A2 |
| Camel nanobody 7A3 |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | LEICA EM GP |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 580888 |
| Reported Resolution (Å) | 2.39 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C1 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 | ||||
| Refinement Space | |||||
| Refinement Protocol | |||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K2 SUMMIT (4k x 4k) | GATAN K3 BIOQUANTUM (6k x 4k) | |||||||
| Electron Dose (electrons/Å**2) | 60 | 60 | |||||||
| Imaging Experiment | 1 | 2 |
|---|---|---|
| Date of Experiment | ||
| Temperature (Kelvin) | ||
| Microscope Model | FEI TALOS ARCTICA | FEI TITAN KRIOS |
| Minimum Defocus (nm) | 1500 | 1500 |
| Maximum Defocus (nm) | 2200 | 2200 |
| Minimum Tilt Angle (degrees) | ||
| Maximum Tilt Angle (degrees) | ||
| Nominal CS | 2.7 | 2.7 |
| Imaging Mode | BRIGHT FIELD | BRIGHT FIELD |
| Specimen Holder Model | FEI TITAN KRIOS AUTOGRID HOLDER | FEI TITAN KRIOS AUTOGRID HOLDER |
| Nominal Magnification | 45000 | 81000 |
| Calibrated Magnification | 53648 | 47348 |
| Source | FIELD EMISSION GUN | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 200 | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| IMAGE ACQUISITION | SerialEM | 3.0 |
| CTF CORRECTION | cryoSPARC | 3.3 |
| INITIAL EULER ASSIGNMENT | cryoSPARC | 3.3 |
| FINAL EULER ASSIGNMENT | cryoSPARC | 3.3 |
| RECONSTRUCTION | cryoSPARC | 3.3 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | 1539054 | |||
