+Open data
-Basic information
Entry | Database: PDB / ID: 7z49 | ||||||
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Title | The capsid of bacteriophage SU10. | ||||||
Components | Major head protein | ||||||
Keywords | VIRUS / bacteriophage / capsid / major capsid protein | ||||||
Function / homology | Protein of unknown function DUF5309 / Family of unknown function (DUF5309) / Major head protein Function and homology information | ||||||
Biological species | Escherichia phage vB_EcoP_SU10 (virus) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.2 Å | ||||||
Authors | Siborova, M. / Fuzik, T. / Prochazkova, M. / Novacek, J. / Plevka, P. | ||||||
Funding support | Czech Republic, 1items
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Citation | Journal: Nat Commun / Year: 2022 Title: Tail proteins of phage SU10 reorganize into the nozzle for genome delivery. Authors: Marta Šiborová / Tibor Füzik / Michaela Procházková / Jiří Nováček / Martin Benešík / Anders S Nilsson / Pavel Plevka / Abstract: Escherichia coli phage SU10 belongs to the genus Kuravirus from the class Caudoviricetes of phages with short non-contractile tails. In contrast to other short-tailed phages, the tails of Kuraviruses ...Escherichia coli phage SU10 belongs to the genus Kuravirus from the class Caudoviricetes of phages with short non-contractile tails. In contrast to other short-tailed phages, the tails of Kuraviruses elongate upon cell attachment. Here we show that the virion of SU10 has a prolate head, containing genome and ejection proteins, and a tail, which is formed of portal, adaptor, nozzle, and tail needle proteins and decorated with long and short fibers. The binding of the long tail fibers to the receptors in the outer bacterial membrane induces the straightening of nozzle proteins and rotation of short tail fibers. After the re-arrangement, the nozzle proteins and short tail fibers alternate to form a nozzle that extends the tail by 28 nm. Subsequently, the tail needle detaches from the nozzle proteins and five types of ejection proteins are released from the SU10 head. The nozzle with the putative extension formed by the ejection proteins enables the delivery of the SU10 genome into the bacterial cytoplasm. It is likely that this mechanism of genome delivery, involving the formation of the tail nozzle, is employed by all Kuraviruses. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 7z49.cif.gz | 5.2 MB | Display | PDBx/mmCIF format |
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PDB format | pdb7z49.ent.gz | Display | PDB format | |
PDBx/mmJSON format | 7z49.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 7z49_validation.pdf.gz | 2.2 MB | Display | wwPDB validaton report |
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Full document | 7z49_full_validation.pdf.gz | 2.5 MB | Display | |
Data in XML | 7z49_validation.xml.gz | 838.4 KB | Display | |
Data in CIF | 7z49_validation.cif.gz | 1.2 MB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/z4/7z49 ftp://data.pdbj.org/pub/pdb/validation_reports/z4/7z49 | HTTPS FTP |
-Related structure data
Related structure data | 14488MC 7z44C 7z45C 7z46C 7z47C 7z48C 7z4aC 7z4bC 7z4fC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 | x 5
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-Components
#1: Protein | Mass: 38616.457 Da / Num. of mol.: 95 / Source method: isolated from a natural source / Source: (natural) Escherichia phage vB_EcoP_SU10 (virus) / References: UniProt: A0A0B4N1Q7 Has protein modification | Y | |
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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: Escherichia phage vB_EcoP_SU10 / Type: VIRUS / Entity ID: all / Source: NATURAL | ||||||||||||||||||||
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Molecular weight | Value: 27.6 MDa / Experimental value: NO | ||||||||||||||||||||
Source (natural) | Organism: Escherichia phage vB_EcoP_SU10 (virus) | ||||||||||||||||||||
Details of virus | Empty: NO / Enveloped: NO / Isolate: STRAIN / Type: VIRION | ||||||||||||||||||||
Natural host | Organism: Escherichia coli | ||||||||||||||||||||
Buffer solution | pH: 8 | ||||||||||||||||||||
Buffer component |
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Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES / Details: PFU 10^11 | ||||||||||||||||||||
Specimen support | Grid material: COPPER / Grid mesh size: 200 divisions/in. / 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: 59000 X / Nominal defocus max: 2700 nm / Nominal defocus min: 1200 nm / Cs: 2.7 mm / C2 aperture diameter: 70 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 1 sec. / Electron dose: 49 e/Å2 / Detector mode: COUNTING / Film or detector model: FEI FALCON II (4k x 4k) / Num. of grids imaged: 1 |
Image scans | Movie frames/image: 40 |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 25689 | ||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C5 (5 fold cyclic) | ||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 4.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 9418 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: AB INITIO MODEL / Space: REAL |