3F4S

Crystal structure of Wolbachia pipientis alpha-DsbA1 T172V


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.151 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural and Functional Characterization of the Oxidoreductase alpha-DsbA1 from Wolbachia pipientis

Kurz, M.Iturbe-Ormaetxe, I.Jarrott, R.Shouldice, S.R.Wouters, M.A.Frei, P.Glockshuber, R.O'Neill, S.L.Heras, B.Martin, J.L.

(2009) ANTIOXID.REDOX SIGNAL. 11: 1485-1500

  • DOI: 10.1089/ars.2008.2420
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The alpha-proteobacterium Wolbachia pipientis is a highly successful intracellular endosymbiont of invertebrates that manipulates its host's reproductive biology to facilitate its own maternal transmission. The fastidious nature of Wolbachia and the ...

    The alpha-proteobacterium Wolbachia pipientis is a highly successful intracellular endosymbiont of invertebrates that manipulates its host's reproductive biology to facilitate its own maternal transmission. The fastidious nature of Wolbachia and the lack of genetic transformation have hampered analysis of the molecular basis of these manipulations. Structure determination of key Wolbachia proteins will enable the development of inhibitors for chemical genetics studies. Wolbachia encodes a homologue (alpha-DsbA1) of the Escherichia coli dithiol oxidase enzyme EcDsbA, essential for the oxidative folding of many exported proteins. We found that the active-site cysteine pair of Wolbachia alpha-DsbA1 has the most reducing redox potential of any characterized DsbA. In addition, Wolbachia alpha-DsbA1 possesses a second disulfide that is highly conserved in alpha-proteobacterial DsbAs but not in other DsbAs. The alpha-DsbA1 structure lacks the characteristic hydrophobic features of EcDsbA, and the protein neither complements EcDsbA deletion mutants in E. coli nor interacts with EcDsbB, the redox partner of EcDsbA. The surface characteristics and redox profile of alpha-DsbA1 indicate that it probably plays a specialized oxidative folding role with a narrow substrate specificity. This first report of a Wolbachia protein structure provides the basis for future chemical genetics studies.


    Organizational Affiliation

    Institute for Molecular Bioscience, University of New South Wales, Sydney, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Putative uncharacterized protein
A
226Wolbachia pipientis wMelMutation(s): 1 
Find proteins for Q73GA4 (Wolbachia pipientis wMel)
Go to UniProtKB:  Q73GA4
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PGE
Query on PGE

Download SDF File 
Download CCD File 
A
TRIETHYLENE GLYCOL
C6 H14 O4
ZIBGPFATKBEMQZ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.151 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 70.730α = 90.00
b = 49.610β = 106.33
c = 69.000γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
CNSphasing
CrystalCleardata scaling
PHENIXrefinement
CrystalCleardata collection
CrystalCleardata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-03-24
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Source and taxonomy, Version format compliance