8FNE
phiPA3 PhuN Tetramer, p2
ELECTRON MICROSCOPY
Sample |
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Core tetramer assembly (p2) of the phiPA3 bacteriophage PhuN protein |
Specimen Preparation | |
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Sample Aggregation State | 2D ARRAY |
Vitrification Instrument | FEI VITROBOT MARK IV |
Cryogen Name | ETHANE |
Sample Vitrification Details |
3D Reconstruction | |
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Reconstruction Method | SINGLE PARTICLE |
Number of Particles | 29303 |
Reported Resolution (Å) | 3.9 |
Resolution Method | FSC 0.143 CUT-OFF |
Other Details | |
Refinement Type | |
Symmetry Type | POINT |
Point Symmetry | C2 |
Map-Model Fitting and Refinement | |||||
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Id | 1 | ||||
Refinement Space | |||||
Refinement Protocol | FLEXIBLE FIT | ||||
Refinement Target | |||||
Overall B Value | |||||
Fitting Procedure | |||||
Details | The initial model was generated using AlphaFold based on sequence alone. |
Data Acquisition | |||||||||
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Detector Type | GATAN K3 BIOQUANTUM (6k x 4k) | ||||||||
Electron Dose (electrons/Å**2) | 67 |
Imaging Experiment | 1 |
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Date of Experiment | |
Temperature (Kelvin) | |
Microscope Model | FEI TITAN KRIOS |
Minimum Defocus (nm) | 800 |
Maximum Defocus (nm) | 2500 |
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 | 105000 |
Calibrated Magnification | |
Source | FIELD EMISSION GUN |
Acceleration Voltage (kV) | 300 |
Imaging Details |
EM Software | ||
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Task | Software Package | Version |
PARTICLE SELECTION | cryoSPARC | v2.15.0 |
PARTICLE SELECTION | cryoSPARC | v3.3.1 |
IMAGE ACQUISITION | SerialEM | v.3.6-v.3.8 |
MODEL FITTING | Rosetta | |
MODEL FITTING | UCSF ChimeraX | |
MODEL FITTING | UCSF Chimera | |
MODEL REFINEMENT | Rosetta | |
MODEL REFINEMENT | ISOLDE | 1.2.1 |
INITIAL EULER ASSIGNMENT | cryoSPARC | v2.15.0 |
FINAL EULER ASSIGNMENT | cisTEM | 1.0.0-beta |
CLASSIFICATION | cisTEM | 1.0.0-beta |
Image Processing | ||||
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CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
NONE |