The Solution Structure of gpV, the Major Tail Protein from Bacteriophage Lambda

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report

This is version 1.4 of the entry. See complete history


The phage lambda major tail protein structure reveals a common evolution for long-tailed phages and the type VI bacterial secretion system.

Pell, L.G.Kanelis, V.Donaldson, L.W.Howell, P.L.Davidson, A.R.

(2009) Proc Natl Acad Sci U S A 106: 4160-4165

  • DOI: https://doi.org/10.1073/pnas.0900044106
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Most bacteriophages possess long tails, which serve as the conduit for genome delivery. We report the solution structure of the N-terminal domain of gpV, the protein comprising the major portion of the noncontractile phage lambda tail tube. This structure is very similar to a previously solved tail tube protein from a contractile-tailed phage, providing the first direct evidence of an evolutionary connection between these 2 distinct types of phage tails. A remarkable structural similarity is also seen to Hcp1, a component of the bacterial type VI secretion system. The hexameric structure of Hcp1 and its ability to form long tubes are strikingly reminiscent of gpV when it is polymerized into a tail tube. These data coupled with other similarities between phage and type VI secretion proteins support an evolutionary relationship between these systems. Using Hcp1 as a model, we propose a polymerization mechanism for gpV involving several disorder-to-order transitions.

  • Organizational Affiliation

    Department of Biochemistry, University of Toronto, Medical Sciences Building, Toronto, ON M5S 1A8, Canada.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Major tail protein V156Lambdavirus lambdaMutation(s): 0 
Gene Names: V
Find proteins for P03733 (Escherichia phage lambda)
Explore P03733 
Go to UniProtKB:  P03733
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP03733
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-02-17
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2020-02-19
    Changes: Database references, Derived calculations, Other
  • Version 1.3: 2023-06-14
    Changes: Database references, Other
  • Version 1.4: 2024-05-08
    Changes: Data collection, Database references