6Z5J
Arrangement of the matrix protein M1 in influenza A/Hong Kong/1/1968 VLPs (HA,NA,M1,M2)
ELECTRON MICROSCOPY
| Sample |
|---|
| Influenza A virus |
| Sample Components |
| Matrix protein 1 |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | LEICA EM GP |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SUBTOMOGRAM AVERAGING |
| Number of Particles | 14767 |
| Reported Resolution (Å) | 8 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C1 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (1EA3) | ||||
| Refinement Space | |||||
| Refinement Protocol | RIGID BODY FIT | ||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | Multiple copies of the M1 NTD crystal structure (PDB:1ea3) were fitted as rigid bodies into the EM map to understand the relative arrangement of M1 mo ... | ||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K2 QUANTUM (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 2.9 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | FEI TITAN KRIOS |
| Minimum Defocus (nm) | 2000 |
| Maximum Defocus (nm) | 4000 |
| 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 | 81000 |
| Calibrated Magnification | |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| VOLUME SELECTION | TOM | |
| VOLUME SELECTION | MATLAB | |
| VOLUME SELECTION | UCSF Chimera | |
| IMAGE ACQUISITION | SerialEM | |
| CTF CORRECTION | CTFFIND | |
| CTF CORRECTION | NOVACTF | |
| MODEL FITTING | UCSF Chimera | |
| RECONSTRUCTION | NOVACTF | |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | CTF determination was performed using CTFFIND4. CTF correction was performed by 3D-CTF correction by CTF multiplication in NovaCTF. | |||
