1HPW

STRUCTURE OF A PILIN MONOMER FROM PSEUDOMONAS AERUGINOSA: IMPLICATIONS FOR THE ASSEMBLY OF PILI.


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure of a pilin monomer from Pseudomonas aeruginosa: implications for the assembly of pili.

Keizer, D.W.Slupsky, C.M.Kalisiak, M.Campbell, A.P.Crump, M.P.Sastry, P.A.Hazes, B.Irvin, R.T.Sykes, B.D.

(2001) J Biol Chem 276: 24186-24193

  • DOI: https://doi.org/10.1074/jbc.M100659200
  • Primary Citation of Related Structures:  
    1HPW

  • PubMed Abstract: 

    Type IV pilin monomers assemble to form fibers called pili that are required for a variety of bacterial functions. Pilin monomers oligomerize due to the interaction of part of their hydrophobic N-terminal alpha-helix. Engineering of a truncated pilin from Pseudomonas aeruginosa strain K122-4, where the first 28 residues are removed from the N terminus, yields a soluble, monomeric protein. This truncated pilin is shown to bind to its receptor and to decrease morbidity and mortality in mice upon administration 15 min before challenge with a heterologous strain of Pseudomonas. The structure of this truncated pilin reveals an alpha-helix at the N terminus that lies across a 4-stranded antiparallel beta-sheet. A model for a pilus is proposed that takes into account both electrostatic and hydrophobic interactions of pilin subunits as well as previously published x-ray fiber diffraction data. Our model indicates that DNA or RNA cannot pass through the center of the pilus, however, the possibility exists for small organic molecules to pass through indicating a potential mechanism for signal transduction.


  • Organizational Affiliation

    Protein Engineering Network Centres of Excellence (PENCE), 713 Heritage Medical Research Centre, University of Alberta, Edmonton, Alberta T6G 2S2, Canada.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
FIMBRIAL PROTEIN129Pseudomonas aeruginosaMutation(s): 0 
UniProt
Find proteins for P17838 (Pseudomonas aeruginosa)
Explore P17838 
Go to UniProtKB:  P17838
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP17838
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-05-02
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-02-23
    Changes: Data collection, Database references, Derived calculations