2IAH

Crystal structure of the ferripyoverdine receptor of the outer membrane of Pseudomonas aeruginosa bound to ferripyoverdine.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.73 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.244 
  • R-Value Observed: 0.246 

Starting Model: experimental
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This is version 1.7 of the entry. See complete history


Literature

From the periplasmic signaling domain to the extracellular face of an outer membrane signal transducer of Pseudomonas aeruginosa: crystal structure of the ferric pyoverdine outer membrane receptor.

Wirth, C.Meyer-Klaucke, W.Pattus, F.Cobessi, D.

(2007) J Mol Biol 368: 398-406

  • DOI: https://doi.org/10.1016/j.jmb.2007.02.023
  • Primary Citation of Related Structures:  
    2IAH

  • PubMed Abstract: 

    The pyoverdine outer membrane receptor, FpvA, from Pseudomonas aeruginosa translocates ferric pyoverdine across the outer membrane through an energy consuming mechanism using the proton motive force and the TonB-ExbB-ExbD energy transducing complex from the inner membrane. We solved the crystal structure of the full-length FpvA bound to iron-pyoverdine at 2.7 A resolution. Signal transduction to an anti-sigma protein of the inner membrane and to TonB-ExbB-ExbD involves the periplasmic domain, which displays a beta-alpha-beta fold composed of two alpha-helices sandwiched by two beta-sheets. One iron-pyoverdine conformer is bound at the extracellular face of FpvA, revealing the conformer selectivity of the binding site. The loop that contains the TonB box, involved in interactions with TonB, and connects the signaling domain to the plug domain of FpvA is not defined in the electron density following the binding of ferric pyoverdine. The high flexibility of this loop is probably necessary for signal transduction through the outer membrane.


  • Organizational Affiliation

    Institut Gilbert-Laustriat UMR 7175 CNRS/Université-Strasbourg I, Département Récepteurs et Protéines Membranaires, Ecole Supérieure de Biotechnologie de Strasbourg, Boulevard Sébastien Brandt, BP 10413, F-67412 Illkirch, France.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Ferripyoverdine receptor772Pseudomonas aeruginosaMutation(s): 0 
Gene Names: fpva
Membrane Entity: Yes 
UniProt
Find proteins for P48632 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Explore P48632 
Go to UniProtKB:  P48632
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP48632
Sequence Annotations
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  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Pyoverdin C-EB [auth I]8Pseudomonas aeruginosaMutation(s): 0 
Sequence Annotations
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
FHO
Query on FHO
B [auth I]L-PEPTIDE LINKINGC6 H12 N2 O4LYS
Biologically Interesting Molecules (External Reference) 1 Unique
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.73 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.244 
  • R-Value Observed: 0.246 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 82.123α = 90
b = 82.123β = 90
c = 286.225γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
SCALAdata scaling
MOLREPphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2007-09-11
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2011-07-27
    Changes: Structure summary
  • Version 1.3: 2012-12-12
    Changes: Other
  • Version 1.4: 2013-03-06
    Changes: Other
  • Version 1.5: 2020-05-13
    Changes: Database references, Derived calculations
  • Version 1.6: 2023-08-30
    Changes: Data collection, Database references, Derived calculations, Refinement description
  • Version 1.7: 2023-11-15
    Changes: Data collection