1PAJ

NMR SOLUTION STRUCTURE AND FLEXIBILITY OF A PEPTIDE ANTIGEN REPRESENTING THE RECEPTOR BINDING DOMAIN OF PSEUDOMONAS AERUGINOSA


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 12 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

NMR solution structure and flexibility of a peptide antigen representing the receptor binding domain of Pseudomonas aeruginosa.

McInnes, C.Sonnichsen, F.D.Kay, C.M.Hodges, R.S.Sykes, B.D.

(1993) Biochemistry 32: 13432-13440

  • Primary Citation of Related Structures:  1PAK

  • PubMed Abstract: 
  • A synthetic peptide antigen corresponding to the C-terminus of Pseudomonas aeruginosa K strain pilin has been studied by one and two-dimensional NMR techniques. This peptide exists in two isomeric forms which arise as a result of the I138-P139 amide ...

    A synthetic peptide antigen corresponding to the C-terminus of Pseudomonas aeruginosa K strain pilin has been studied by one and two-dimensional NMR techniques. This peptide exists in two isomeric forms which arise as a result of the I138-P139 amide bond. An ensemble of solution conformations for the trans form of this 17-residue disulfide-bridged peptide (PAK 128-144) has been generated using a simulated annealing procedure in conjunction with distance and torsion angle restraints derived from NMR data. One major class of backbone conformations has been identified for this potential synthetic vaccine and indicates the presence of two beta-turns in the region 134-142. The region that has been established as the epitope for the monoclonal antibody PK99H is consistent with the region of the major conformers that exhibit the most definition in the ensemble (134-140) and also includes a type I beta-turn from residues 134 to 137. The generated structures are also consistent with observed NOEs characteristic of beta-turns and amide proton temperature coefficient data, which indicate the presence of two turns between residues 134 and 142. The presence of secondary structure within the epitope substantiates the theory that immunogenic regions of proteins are those which contain surface-exposed structural elements such as beta-turns. Further implications of the structure on antigenicity and cross-reactivity are discussed.


    Related Citations: 
    • Conformational Differences between the Cis and Trans Proline Isomers of a Peptide Antigen Representing the Receptor Binding Domain of Pseudomonas Aeruginosa
      Mcinnes, C.,Kay, C.M.,Hodges, R.S.,Sykes, B.D.
      () TO BE PUBLISHED --: --


    Organizational Affiliation

    Protein Engineering Network of Centres of Excellence and Synthetic Peptides Incorporated, University of Alberta, Edmonton, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FIMBRIAL PROTEIN PRECURSOR
A
18Pseudomonas aeruginosaGene Names: pilA (fimA)
Find proteins for P02973 (Pseudomonas aeruginosa)
Go to UniProtKB:  P02973
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
OH
Query on OH

Download SDF File 
Download CCD File 
A
HYDROXIDE ION
H O
XLYOFNOQVPJJNP-UHFFFAOYSA-M
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
ACE
Query on ACE
A
NON-POLYMERC2 H4 O

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Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 12 
  • Olderado: 1PAJ Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-11-29
    Type: Derived calculations, Other