7P8S

Crystal Structure of leukotoxin LukE from Staphylococcus aureus at 1.9 Angstrom resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.186 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

Structural insights into recognition of chemokine receptors by Staphylococcus aureus leukotoxins.

Lambey, P.Otun, O.Cong, X.Hoh, F.Brunel, L.Verdie, P.Grison, C.M.Peysson, F.Jeannot, S.Durroux, T.Bechara, C.Granier, S.Leyrat, C.

(2022) Elife 11

  • DOI: https://doi.org/10.7554/eLife.72555
  • Primary Citation of Related Structures:  
    7P8S, 7P8T, 7P8U, 7P8X, 7P93

  • PubMed Abstract: 

    Staphylococcus aureus (SA) leukocidin ED (LukED) belongs to a family of bicomponent pore forming toxins that play important roles in SA immune evasion and nutrient acquisition. LukED targets specific G protein-coupled chemokine receptors to lyse human erythrocytes (red blood cells) and leukocytes (white blood cells). The first recognition step of receptors is critical for specific cell targeting and lysis. The structural and molecular bases for this mechanism are not well understood but could constitute essential information to guide antibiotic development. Here, we characterized the interaction of LukE with chemokine receptors ACKR1, CCR2, and CCR5 using a combination of structural, pharmacological, and computational approaches. First, crystal structures of LukE in complex with a small molecule mimicking sulfotyrosine side chain (p-cresyl sulfate) and with peptides containing sulfotyrosines issued from receptor sequences revealed the location of receptor sulfotyrosine binding sites in the toxins. Then, by combining previous and novel experimental data with protein docking, classical and accelerated weight histogram (AWH) molecular dynamics we propose models of the ACKR1-LukE and CCR5-LukE complexes. This work provides novel insights into chemokine receptor recognition by leukotoxins and suggests that the conserved sulfotyrosine binding pocket could be a target of choice for future drug development.


  • Organizational Affiliation

    Institut de Génomique Fonctionnelle, Université de Montpellier, CNRS, INSERM, Montpellier, France.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Leucotoxin LukEv308Staphylococcus aureusMutation(s): 0 
Gene Names: lukEvSAOUHSC_01955
Membrane Entity: Yes 
UniProt
Find proteins for Q2FXB0 (Staphylococcus aureus (strain NCTC 8325 / PS 47))
Explore Q2FXB0 
Go to UniProtKB:  Q2FXB0
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ2FXB0
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.186 
  • Space Group: I 4
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 135.79α = 90
b = 135.79β = 90
c = 63.533γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Agence Nationale de la Recherche (ANR)FranceANR-17-CE15-0002-01

Revision History  (Full details and data files)

  • Version 1.0: 2022-04-06
    Type: Initial release
  • Version 1.1: 2024-01-31
    Changes: Data collection, Refinement description