3J2O

Model of the bacteriophage T4 fibritin based on the cryo-EM reconstruction of the contracted T4 tail containing the phage collar and whiskers


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 25.0 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The molecular architecture of the bacteriophage t4 neck.

Fokine, A.Zhang, Z.Kanamaru, S.Bowman, V.D.Aksyuk, A.A.Arisaka, F.Rao, V.B.Rossmann, M.G.

(2013) J Mol Biol 425: 1731-1744

  • DOI: 10.1016/j.jmb.2013.02.012
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • A hexamer of the bacteriophage T4 tail terminator protein, gp15, attaches to the top of the phage tail stabilizing the contractile sheath and forming the interface for binding of the independently assembled head. Here we report the crystal structure ...

    A hexamer of the bacteriophage T4 tail terminator protein, gp15, attaches to the top of the phage tail stabilizing the contractile sheath and forming the interface for binding of the independently assembled head. Here we report the crystal structure of the gp15 hexamer, describe its interactions in T4 virions that have either an extended tail or a contracted tail, and discuss its structural relationship to other phage proteins. The neck of T4 virions is decorated by the "collar" and "whiskers", made of fibritin molecules. Fibritin acts as a chaperone helping to attach the long tail fibers to the virus during the assembly process. The collar and whiskers are environment-sensing devices, regulating the retraction of the long tail fibers under unfavorable conditions, thus preventing infection. Cryo-electron microscopy analysis suggests that twelve fibritin molecules attach to the phage neck with six molecules forming the collar and six molecules forming the whiskers.


    Organizational Affiliation

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



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Fibritin
A, B, C, D, E, F
486Escherichia virus T4Mutation(s): 0 
Gene Names: wac
Find proteins for P10104 (Enterobacteria phage T4)
Go to UniProtKB:  P10104
Protein Feature View
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 25.0 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-03-06
    Type: Initial release
  • Version 1.1: 2013-05-15
    Changes: Database references
  • Version 1.2: 2018-07-18
    Changes: Data collection