Biological Assembly 1  

 3D View: Structure

Global Symmetry: Cyclic - C6  (3D View)
Global Stoichiometry: Homo 6-mer - A6 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 327.88 kDa 
• Atom Count: 21678 
• Modelled Residue Count: 2874 
• Deposited Residue Count: 3060 
• Unique protein chains: 1

3FOH

Fitting of gp18M crystal structure into 3D cryo-EM reconstruction of bacteriophage T4 extended tail

• DOI: 10.2210/pdb3FOH/pdb
• EMDataResource: EMD-1126

• Classification: VIRAL PROTEIN
• Organism(s): Escherichia virus T4
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2008-12-30 Released: 2009-03-10 
• Deposition Author(s): Aksyuk, A.A., Leiman, P.G., Kurochkina, L.P., Shneider, M.M., Kostyuchenko, V.A., Mesyanzhinov, V.V., Rossmann, M.G.

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 15.0 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

The tail sheath structure of bacteriophage T4: a molecular machine for infecting bacteria.

Aksyuk, A.A., Leiman, P.G., Kurochkina, L.P., Shneider, M.M., Kostyuchenko, V.A., Mesyanzhinov, V.V., Rossmann, M.G.

(2009) EMBO J 28: 821-829

• PubMed: 19229296 
• DOI: 10.1038/emboj.2009.36
• Primary Citation of Related Structures:  
  3FO8, 3FOH, 3FOI, 3FOA


• PubMed Abstract: 
  

The contractile tail of bacteriophage T4 is a molecular machine that facilitates very high viral infection efficiency. Its major component is a tail sheath, which contracts during infection to less than half of its initial length. The sheath consists of 138 copies of the tail sheath protein, gene product (gp) 18, which surrounds the central non-contractile tail tube. The contraction of the sheath drives the tail tube through the outer membrane, creating a channel for the viral genome delivery. A crystal structure of about three quarters of gp18 has been determined and was fitted into cryo-electron microscopy reconstructions of the tail sheath before and after contraction. It was shown that during contraction, gp18 subunits slide over each other with no apparent change in their structure.

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Organizational Affiliation: 

Department of Biological Sciences, Purdue University, West Lafayette, IN 47907-2054, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Tail sheath protein Gp18	A, B, C, D, E, F	510	Escherichia virus T4	Mutation(s): 1  Gene Names: 18, GB AAA32541
Find proteins for P13332 (Enterobacteria phage T4) Explore P13332  Go to UniProtKB:  P13332

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 15.0 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2008-12-30 
• Released Date: 2009-03-10 
Deposition Author(s): Aksyuk, A.A., Leiman, P.G., Kurochkina, L.P., Shneider, M.M., Kostyuchenko, V.A., Mesyanzhinov, V.V., Rossmann, M.G.

Revision History  

• Version 1.0: 2009-03-10
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2012-05-30
  Changes: Refinement description
• Version 1.3: 2018-07-18
  Changes: Data collection
• Version 1.4: 2019-11-06
  Changes: Advisory, Data collection, Other