ELECTRON MICROSCOPY
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 1HXS | |
| Sample |
|---|
| POLIOVIRUS 135S CELL ENTRY INTERMEDIATE |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | Plunge freezing into liquid ethane |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 3641 |
| Reported Resolution (Å) | 11 |
| Resolution Method | |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | I |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (1HXS) | ||||
| Refinement Space | RECIPROCAL | ||||
| Refinement Protocol | RIGID BODY FIT | ||||
| Refinement Target | amplitude-weighted phase error, and the summation of the squared model-based amplitudes. | ||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | METHOD--gradient search REFINEMENT PROTOCOL--Rigid body (chains 1 and 6 as one rigid body, chains 3 and 7 as one rigid body, chains 2 and 8 as indivi ... | ||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | KODAK SO-163 FILM | ||||||||
| Electron Dose (electrons/Å**2) | 1 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2002-09-17 |
| Temperature (Kelvin) | 77 |
| Microscope Model | FEI TECNAI F20 |
| Minimum Defocus (nm) | 900 |
| Maximum Defocus (nm) | 3000 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | |
| Nominal Magnification | 50000 |
| Calibrated Magnification | 50000 |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 200 |
| Imaging Details | Focal pairs were taken |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| MODEL FITTING | INSOUT | |
| RECONSTRUCTION | EM3DR | |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| CTF correction of each particle. Phase flipped correction for particles included in the orientation search, and deconvoluted and gaussian decay corrected for the particles used in the reconstruction | ||||
