Structure of MA28-7 neutralizing antibody Fab fragment from electron cryo-microscopy of enterovirus 71 complexed with a Fab fragment
ELECTRON MICROSCOPY
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 3GK8 | |
| Sample |
|---|
| Enterovirus 71 complexed with Fab Fragment of MA28-7 neutralizing antibody |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | FEI VITROBOT MARK III |
| Cryogen Name | OTHER |
| Sample Vitrification Details | Plunged into ethane-propane mixture (FEI VITROBOT MARK III) |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 27026 |
| Reported Resolution (Å) | 23.4 |
| Resolution Method | FSC 0.5 CUT-OFF |
| Other Details | The breaksym option in EMAN2 was used to search for the icosahedrally-related orientations. (Single particle details: Selected particles were low-pass ... |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C1 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (3GK8, 3GK8) | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | RIGID BODY FIT | ||||
| Refinement Target | correlation coefficient | ||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | REFINEMENT PROTOCOL--rigid body DETAILS--The Fab structure was fitted manually, then refined in Chimera. | ||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | KODAK SO-163 FILM | ||||||||
| Electron Dose (electrons/Å**2) | 15 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2011-02-02 |
| Temperature (Kelvin) | 95 |
| Microscope Model | FEI TECNAI F20 |
| Minimum Defocus (nm) | 1900 |
| Maximum Defocus (nm) | 6120 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | GATAN LIQUID NITROGEN |
| Nominal Magnification | 50000 |
| Calibrated Magnification | 48425 |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 200 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| MODEL FITTING | UCSF Chimera | |
| RECONSTRUCTION | EMAN | 2 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| Each | ||||
