The X-ray structure of the gp15 hexamer and the model of the gp18 protein fitted into the cryo-EM reconstruction of the extended T4 tail
ELECTRON MICROSCOPY
| Sample |
|---|
| Bacteriophage T4 tail |
| Sample Components |
| Bacteriophage T4 tail terminator protein, gp15 |
| Bacteriophage T4 tail sheath protein, gp18 |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 3029 |
| Reported Resolution (Å) | 15 |
| Resolution Method | FSC 0.5 CUT-OFF |
| Other Details | reconstruction done with in-house implementation of BP RP algorithm from SPIDER to support non-cubic reconstruction volumes |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C6 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | RIGID BODY FIT | ||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | REFINEMENT PROTOCOL--rigid body | ||||
| Data Acquisition |
|---|
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2003-01-10 |
| Temperature (Kelvin) | |
| Microscope Model | FEI/PHILIPS CM300FEG/ST |
| Minimum Defocus (nm) | 1000 |
| Maximum Defocus (nm) | 4000 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | GATAN LIQUID NITROGEN |
| Nominal Magnification | 45000 |
| Calibrated Magnification | 47000 |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| MODEL FITTING | EMfit | |
| RECONSTRUCTION | SPIDER | |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| each particle image | ||||
