3H93

Crystal Structure of Pseudomonas aeruginosa DsbA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.152 
  • R-Value Work: 0.110 
  • R-Value Observed: 0.112 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Characterization of the DsbA Oxidative Folding Catalyst from Pseudomonas aeruginosa Reveals a Highly Oxidizing Protein that Binds Small Molecules.

Shouldice, S.R.Heras, B.Jarrott, R.Sharma, P.Scanlon, M.J.Martin, J.L.

(2010) Antioxid Redox Signal 12: 921-931

  • DOI: 10.1089/ars.2009.2736
  • Primary Citation of Related Structures:  
    3H93

  • PubMed Abstract: 
  • Bacterial antibiotic resistance is an emerging global crisis, and treatment of multidrug-resistant gram-negative infections, particularly those caused by the opportunistic human pathogen Pseudomonas aeruginosa, remains a major challenge. This problem ...

    Bacterial antibiotic resistance is an emerging global crisis, and treatment of multidrug-resistant gram-negative infections, particularly those caused by the opportunistic human pathogen Pseudomonas aeruginosa, remains a major challenge. This problem is compounded by a lack of new antibiotics in the development pipeline: only two new classes have been developed since the 1960s, and both are indicated for multidrug-resistant gram-positive infections. A promising new approach to combat antibiotic resistance is by targeting bacterial virulence, rather than bacterial viability. The bacterial periplasmic protein DsbA represents a central point for antivirulence intervention because its oxidoreductase activity is essential for the folding and function of almost all exported virulence factors. Here we describe the three-dimensional structure of this DsbA target from P. aeruginosa, and we establish for the first time that a member of this enzyme family is capable of binding small molecules. We also describe biochemical assays that validate the redox activity of PaDsbA. Together, the structural and functional characterization of PaDsbA provides the basis for future studies aimed at designing a new class of antivirulence compounds to combat antibiotic-resistant P. aeruginosa infection.


    Organizational Affiliation

    The University of Queensland, Institute for Molecular Bioscience , Division of Chemistry and Structural Biology, Brisbane, Queensland, Australia.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Thiol:disulfide interchange protein dsbAA192Pseudomonas aeruginosa PAO1Mutation(s): 0 
Gene Names: dsbAPA5489
Find proteins for P0C2B2 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Explore P0C2B2 
Go to UniProtKB:  P0C2B2
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download CCD File 
A
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
AL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.152 
  • R-Value Work: 0.110 
  • R-Value Observed: 0.112 
  • Space Group: P 41
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 41.155α = 90
b = 41.155β = 90
c = 98.318γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
RESOLVEphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection
PHENIXphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2009-04-29 
  • Released Date: 2009-12-08 
  • Deposition Author(s): Shouldice, S.R.

Revision History 

  • Version 1.0: 2009-12-08
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 1.2: 2017-11-01
    Changes: Refinement description