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Yorodumi- PDB-6v8i: Composite atomic model of the Staphylococcus aureus phage 80alpha... -
+Open data
-Basic information
Entry | Database: PDB / ID: 6v8i | ||||||
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Title | Composite atomic model of the Staphylococcus aureus phage 80alpha baseplate | ||||||
Components |
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Keywords | VIRAL PROTEIN / phage tail / tail tip / tape measure protein | ||||||
Function / homology | Function and homology information | ||||||
Biological species | Staphylococcus virus 80alpha | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.7 Å | ||||||
Authors | Kizziah, J.L. / Dokland, T. | ||||||
Funding support | United States, 1items
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Citation | Journal: PLoS Pathog / Year: 2020 Title: Structure of the host cell recognition and penetration machinery of a Staphylococcus aureus bacteriophage. Authors: James L Kizziah / Keith A Manning / Altaira D Dearborn / Terje Dokland / Abstract: Staphylococcus aureus is a common cause of infections in humans. The emergence of virulent, antibiotic-resistant strains of S. aureus is a significant public health concern. Most virulence and ...Staphylococcus aureus is a common cause of infections in humans. The emergence of virulent, antibiotic-resistant strains of S. aureus is a significant public health concern. Most virulence and resistance factors in S. aureus are encoded by mobile genetic elements, and transduction by bacteriophages represents the main mechanism for horizontal gene transfer. The baseplate is a specialized structure at the tip of bacteriophage tails that plays key roles in host recognition, cell wall penetration, and DNA ejection. We have used high-resolution cryo-electron microscopy to determine the structure of the S. aureus bacteriophage 80α baseplate at 3.75 Å resolution, allowing atomic models to be built for most of the major tail and baseplate proteins, including two tail fibers, the receptor binding protein, and part of the tape measure protein. Our structure provides a structural basis for understanding host recognition, cell wall penetration and DNA ejection in viruses infecting Gram-positive bacteria. Comparison to other phages demonstrates the modular design of baseplate proteins, and the adaptations to the host that take place during the evolution of staphylococci and other pathogens. | ||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 6v8i.cif.gz | 3.7 MB | Display | PDBx/mmCIF format |
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PDB format | pdb6v8i.ent.gz | Display | PDB format | |
PDBx/mmJSON format | 6v8i.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6v8i_validation.pdf.gz | 1.7 MB | Display | wwPDB validaton report |
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Full document | 6v8i_full_validation.pdf.gz | 1.9 MB | Display | |
Data in XML | 6v8i_validation.xml.gz | 515.1 KB | Display | |
Data in CIF | 6v8i_validation.cif.gz | 776.3 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/v8/6v8i ftp://data.pdbj.org/pub/pdb/validation_reports/v8/6v8i | HTTPS FTP |
-Related structure data
Related structure data | 20872MC 20873MC 20874MC 20875MC 20876MC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-Protein , 7 types, 72 molecules ACADCCCDBCBDAECEBECFBFAFBJBKBLDJDKDLAJAKALFJFKFLCJCKCLEJEKEL...
#1: Protein | Mass: 37105.004 Da / Num. of mol.: 6 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Staphylococcus virus 80alpha / Strain: ST247 / Production host: Staphylococcus aureus (bacteria) / References: UniProt: A4ZFC4 #2: Protein | Mass: 71114.680 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Staphylococcus virus 80alpha / Strain: ST247 / Production host: Staphylococcus aureus (bacteria) / References: UniProt: A4ZFC5 #3: Protein | Mass: 125891.977 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Staphylococcus virus 80alpha / Strain: ST247 / Production host: Staphylococcus aureus (bacteria) / References: UniProt: A4ZFC2 #4: Protein | Mass: 66872.477 Da / Num. of mol.: 18 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Staphylococcus virus 80alpha / Strain: ST247 / Production host: Staphylococcus aureus (bacteria) / References: UniProt: A4ZFC8 #5: Protein | Mass: 43866.266 Da / Num. of mol.: 12 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Staphylococcus virus 80alpha / Strain: ST247 / Production host: Staphylococcus aureus (bacteria) / References: UniProt: A4ZFD4 #6: Protein | Mass: 21551.746 Da / Num. of mol.: 12 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Staphylococcus virus 80alpha / Strain: ST247 / Production host: Staphylococcus aureus (bacteria) / References: UniProt: A4ZFB9 #7: Protein | Mass: 73747.445 Da / Num. of mol.: 18 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Staphylococcus virus 80alpha / Strain: ST247 / Production host: Staphylococcus aureus (bacteria) / References: UniProt: A4ZFC7 |
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-Non-polymers , 1 types, 6 molecules
#8: Chemical | ChemComp-FE / |
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-Details
Has ligand of interest | N |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Staphylococcus phage 80alpha baseplate / Type: COMPLEX Details: 80alpha baseplate attached to fully formed tails with no capsids Entity ID: #1-#7 / Source: RECOMBINANT | |||||||||||||||||||||||||
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Molecular weight | Value: 3.7 MDa / Experimental value: NO | |||||||||||||||||||||||||
Source (natural) | Organism: Staphylococcus virus 80alpha / Strain: ST247 | |||||||||||||||||||||||||
Source (recombinant) | Organism: Staphylococcus aureus (bacteria) | |||||||||||||||||||||||||
Buffer solution | pH: 8 | |||||||||||||||||||||||||
Buffer component |
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Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES Details: 80alpha tails (with baseplates) purified by centrifugation, polyethylene glycol precipitation, and CsCl density gradation | |||||||||||||||||||||||||
Specimen support | Grid material: NICKEL / Grid type: Quantifoil R2/1 | |||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 29000 X / Nominal defocus max: 3700 nm / Nominal defocus min: 1700 nm |
Specimen holder | Cryogen: NITROGEN Specimen holder model: GATAN 626 SINGLE TILT LIQUID NITROGEN CRYO TRANSFER HOLDER |
Image recording | Average exposure time: 1.156 sec. / Electron dose: 104.33 e/Å2 / Film or detector model: DIRECT ELECTRON DE-20 (5k x 3k) / Num. of grids imaged: 10 / Num. of real images: 6483 |
Image scans | Movie frames/image: 37 / Used frames/image: 1-37 |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING ONLY | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 515106 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C6 (6 fold cyclic) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 43601 / Symmetry type: POINT | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: RIGID BODY FIT / Space: RECIPROCAL / Target criteria: correlation coefficient Details: Initial models derived from I-TASSER predictions based on GenBank sequences of modeled proteins. Rigid body fitting in UCSF Chimera followed by manual extension in Coot. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 5EFV Accession code: 5EFV / Source name: PDB / Type: experimental model |