Structure of Simian Immunodeficiency Virus Envelope Spikes bound with CD4 and Monoclonal Antibody 36D5
ELECTRON MICROSCOPY
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 4NCO | |
| Sample |
|---|
| Simian immunodeficiency virus |
| Sample Components |
| SIV envelope spike bound to CD4 and monoclonal antibody 36d5 in the open state |
| T-cell surface glycoprotein CD4 |
| monoclonal antibody 36D5 |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | CELL |
| Vitrification Instrument | HOMEMADE PLUNGER |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | Plunged into liquid ethane. |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | TOMOGRAPHY |
| Number of Particles | 1796 |
| Reported Resolution (Å) | |
| Resolution Method | |
| Other Details | (Subtomogram Averaging--Applied Symmetry: C1) |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C1 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (4NCO) | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | RIGID BODY FIT | ||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | TVIPS TEMCAM-F415 (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 100 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2008-08-16 |
| Temperature (Kelvin) | |
| Microscope Model | FEI POLARA 300 |
| Minimum Defocus (nm) | 4000 |
| Maximum Defocus (nm) | 5000 |
| Minimum Tilt Angle (degrees) | -65 |
| Maximum Tilt Angle (degrees) | 65 |
| Nominal CS | |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | OTHER |
| Nominal Magnification | 31000 |
| Calibrated Magnification | |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
