4HUD

Structure of the bacteriophage T4 tail terminator protein, gp15.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.207 
  • R-Value Observed: 0.209 

wwPDB Validation   3D Report Full Report


This is version 1.3 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
  • Primary Citation of Related Structures:  
    3J2M, 3J2N, 3J2O, 4HUD, 4HUH

  • 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 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 ...

    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:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tail connector protein Gp15
A, B, C, D, E, F
A, B, C, D, E, F
272Escherichia virus T4Mutation(s): 0 
Gene Names: 15
UniProt
Find proteins for P11112 (Enterobacteria phage T4)
Explore P11112 
Go to UniProtKB:  P11112
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP11112
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.207 
  • R-Value Observed: 0.209 
  • Space Group: P 32
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 100.682α = 90
b = 100.682β = 90
c = 155.891γ = 120
Software Package:
Software NamePurpose
PHASERphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-02-27
    Type: Initial release
  • Version 1.1: 2013-03-13
    Changes: Database references
  • Version 1.2: 2013-05-22
    Changes: Database references
  • Version 1.3: 2017-11-15
    Changes: Refinement description