6Q3G
Structure of native bacteriophage P68
ELECTRON MICROSCOPY
| Sample |
|---|
| Staphylococcus phage P68 |
| Sample Components |
| Capsid of native phage P68 |
| Tail complex |
| Portal protein |
| Inner core protein |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | FEI VITROBOT MARK IV |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | blot time 2s; blot force -2; 3.6 ul of sample |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 33612 |
| Reported Resolution (Å) | 3.8 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | The final map is combination of maps of individual parts of bacteriophage P68 as described in the assembly section. |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C1 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (6IAB, 6IAT, 6IAW, 6IAC) | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | RIGID BODY FIT | ||||
| Refinement Target | Cross-correlation coefficient | ||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | FEI FALCON II (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 21 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | FEI TITAN KRIOS |
| Minimum Defocus (nm) | 1 |
| Maximum Defocus (nm) | 3 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2.7 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | FEI TITAN KRIOS AUTOGRID HOLDER |
| Nominal Magnification | 75000 |
| Calibrated Magnification | |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| PARTICLE SELECTION | EMAN2 | 2.1 |
| IMAGE ACQUISITION | EPU | |
| CTF CORRECTION | CTFFIND | 4.0 |
| MODEL FITTING | UCSF Chimera | 2018-02-05 |
| INITIAL EULER ASSIGNMENT | RELION | 2.1 |
| FINAL EULER ASSIGNMENT | RELION | 2.1 |
| CLASSIFICATION | RELION | 2.1 |
| RECONSTRUCTION | RELION | 2.1 |
| MODEL REFINEMENT | PHENIX | dev:3042 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | 37218 | |||
