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Open data
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Basic information
Entry | Database: PDB / ID: 9g8s | ||||||
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Title | C3 reconstruction of extended phiCD508 needle | ||||||
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![]() | VIRUS / Bacteriophage / needle / baseplate | ||||||
Function / homology | ![]() virus tail, sheath / symbiont genome ejection through host cell envelope, contractile tail mechanism / viral tail assembly / membrane Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.96 Å | ||||||
![]() | Wilson, J.S. / Fagan, R.P. / Bullough, P.A. | ||||||
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![]() | ![]() Title: Molecular mechanism of bacteriophage contraction structure of an S-layer-penetrating bacteriophage. Authors: Jason S Wilson / Louis-Charles Fortier / Robert P Fagan / Per A Bullough / ![]() ![]() Abstract: The molecular details of phage tail contraction and bacterial cell envelope penetration remain poorly understood and are completely unknown for phages infecting bacteria enveloped by proteinaceous S- ...The molecular details of phage tail contraction and bacterial cell envelope penetration remain poorly understood and are completely unknown for phages infecting bacteria enveloped by proteinaceous S-layers. Here, we reveal the extended and contracted atomic structures of an intact contractile-tailed phage (φCD508) that binds to and penetrates the protective S-layer of the Gram-positive human pathogen The tail is unusually long (225 nm), and it is also notable that the tail contracts less than those studied in related contractile injection systems such as the model phage T4 (∼20% compared with ∼50%). Surprisingly, we find no evidence of auxiliary enzymatic domains that other phages exploit in cell wall penetration, suggesting that sufficient energy is released upon tail contraction to penetrate the S-layer and the thick cell wall without enzymatic activity. Instead, the unusually long tail length, which becomes more flexible upon contraction, likely contributes toward the required free energy release for envelope penetration. | ||||||
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 4.7 MB | Display | ![]() |
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Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 51138MC ![]() 9gayC ![]() 9gazC ![]() 9gb0C ![]() 9gb1C ![]() 9gb2C ![]() 9gb3C ![]() 9gb4C ![]() 9gb5C ![]() 9gb6C ![]() 9gb7C ![]() 9gb8C M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Assembly
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Noncrystallographic symmetry (NCS) | NCS domain:
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