The Structure of Bordetella Pertussis Virulence Factor P.69 Pertactin

Experimental Data Snapshot

  • Resolution: 2.50 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.250 
  • R-Value Observed: 0.250 

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Structure of Bordetella pertussis virulence factor P.69 pertactin.

Emsley, P.Charles, I.G.Fairweather, N.F.Isaacs, N.W.

(1996) Nature 381: 90-92

  • DOI: https://doi.org/10.1038/381090a0
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    A new generation of whooping-cough vaccines contain P.69 pertactin, a surface-exposed domain of an outer membrane protein expressed by the virulent bacterium Bordetella pertussis. This protein is a virulence factor that mediates adhesion to target mammalian cells, a reaction that is in part mediated by an RGD sequence. The X-ray crystal structure of P.69 pertactin has been determined to 2.5 A. The protein fold consists of a 16-stranded parallel beta-helix with a V-shaped cross-section, and is the largest beta-helix known to date. Several between-strand weakly conserved amino-acid repeats form internal and external ladders. The structure appears as a helix from which several loops protrude, which contain sequence motifs associated with the biological activity of the protein. One particular (GGXXP)5 sequence is located directly after the RGD motif, and may mediate interaction with epithelial cells. The carboxy-terminal region of P.69 pertactin incorporates a (PQP)5 motif loop containing the major immunoprotective epitope.

  • Organizational Affiliation

    Department of Chemistry, University of Glasgow, UK.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
P.69 PERTACTIN539Bordetella pertussisMutation(s): 0 
Membrane Entity: Yes 
Find proteins for P14283 (Bordetella pertussis (strain Tohama I / ATCC BAA-589 / NCTC 13251))
Explore P14283 
Go to UniProtKB:  P14283
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP14283
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.50 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.250 
  • R-Value Observed: 0.250 
  • Space Group: P 63 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 176.199α = 90
b = 176.199β = 90
c = 104.688γ = 120
Software Package:
Software NamePurpose
DMmodel building
MAR345data collection
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-12-15
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2017-10-04
    Changes: Refinement description
  • Version 1.4: 2024-02-07
    Changes: Data collection, Database references