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 1.2 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: 10.1074/jbc.M100659200

  • 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 ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FIMBRIAL PROTEIN
A
129Pseudomonas aeruginosaGene Names: pilA (fimA)
Find proteins for P17838 (Pseudomonas aeruginosa)
Go to UniProtKB:  P17838
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 1HPW Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-05-02
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance