2W75

Structures of P. aeruginosa FpvA bound to heterologous pyoverdines: Apo-FpvA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.214 

Starting Model: experimental
View more details

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

Fpva Bound to Non-Cognate Pyoverdines: Molecular Basis of Siderophore Recognition by an Iron Transporter.

Greenwald, J.Nader, M.Celia, H.Gruffaz, C.Geoffroy, V.Meyer, J.M.Schalk, I.J.Pattus, F.

(2009) Mol Microbiol 72: 1246

  • DOI: https://doi.org/10.1111/j.1365-2958.2009.06721.x
  • Primary Citation of Related Structures:  
    2W16, 2W6T, 2W6U, 2W75, 2W76, 2W77, 2W78

  • PubMed Abstract: 

    The first step in the specific uptake of iron via siderophores in Gram-negative bacteria is the recognition and binding of a ferric siderophore by its cognate receptor. We investigated the molecular basis of this event through structural and biochemical approaches. FpvA, the pyoverdine-Fe transporter from Pseudomonas aeruginosa ATCC 15692 (PAO1 strain), is able to transport ferric-pyoverdines originating from other species, whereas most fluorescent pseudomonads are only able to use the one they produce among the more than 100 known different pyoverdines. We solved the structure of FpvA bound to non-cognate pyoverdines of high- or low-affinity and found a close correlation between receptor-ligand structure and the measured affinities. The structure of the first amino acid residues of the pyoverdine chain distinguished the high- and low-affinity binders while the C-terminal portion of the pyoverdines, often cyclic, does not appear to contribute extensively to the interaction between the siderophore and its transporter. The specificity of the ferric-pyoverdine binding site of FpvA is conferred by the structural elements common to all ferric-pyoverdines, i.e. the chromophore, iron, and its chelating groups.


  • Organizational Affiliation

    Laboratoire de Biologie Structurale des Membranes, UMR7175, Ecole Supérieure de Biotechnologie de Strasbourg, Bd Sébastien Brant, BP10413, 67412 Illkirch, France. [email protected]


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
FERRIPYOVERDINE RECEPTOR
A, B
772Pseudomonas aeruginosa PAO1Mutation(s): 0 
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
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
N8E
Query on N8E

Download Ideal Coordinates CCD File 
C [auth A],
D [auth A]
3,6,9,12,15-PENTAOXATRICOSAN-1-OL
C18 H38 O6
MJELOWOAIAAUJT-UHFFFAOYSA-N
PO4
Query on PO4

Download Ideal Coordinates CCD File 
E [auth A]
F [auth A]
G [auth A]
H [auth A]
I [auth A]
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth B],
L [auth B],
M [auth B],
N [auth B]
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.214 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 193.794α = 90
b = 129.526β = 130.57
c = 140.952γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-05-12
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Refinement description, Version format compliance
  • Version 1.2: 2019-07-24
    Changes: Data collection
  • Version 1.3: 2023-12-13
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description