3L9U

Crystal Structure of Salmonella enterica serovar Typhimurium DsbL


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.57 Å
  • R-Value Free: 0.184 
  • R-Value Work: 0.150 
  • R-Value Observed: 0.152 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural and functional characterization of three DsbA paralogues from Salmonella enterica serovar typhimurium

Heras, B.Totsika, M.Jarrott, R.Shouldice, S.R.Guncar, G.Achard, M.E.S.Wells, T.J.Argente, M.P.McEwan, A.G.Schembri, M.A.

(2010) J Biol Chem 285: 18423-18432

  • DOI: 10.1074/jbc.M110.101360
  • Primary Citation of Related Structures:  
    3L9S, 3L9U, 3L9V

  • PubMed Abstract: 
  • In prototypic Escherichia coli K-12 the introduction of disulfide bonds into folding proteins is mediated by the Dsb family of enzymes, primarily through the actions of the highly oxidizing protein EcDsbA. Homologues of the Dsb catalysts are found in ...

    In prototypic Escherichia coli K-12 the introduction of disulfide bonds into folding proteins is mediated by the Dsb family of enzymes, primarily through the actions of the highly oxidizing protein EcDsbA. Homologues of the Dsb catalysts are found in most bacteria. Interestingly, pathogens have developed distinct Dsb machineries that play a pivotal role in the biogenesis of virulence factors, hence contributing to their pathogenicity. Salmonella enterica serovar (sv.) Typhimurium encodes an extended number of sulfhydryl oxidases, namely SeDsbA, SeDsbL, and SeSrgA. Here we report a comprehensive analysis of the sv. Typhimurium thiol oxidative system through the structural and functional characterization of the three Salmonella DsbA paralogues. The three proteins share low sequence identity, which results in several unique three-dimensional characteristics, principally in areas involved in substrate binding and disulfide catalysis. Furthermore, the Salmonella DsbA-like proteins also have different redox properties. Whereas functional characterization revealed some degree of redundancy, the properties of SeDsbA, SeDsbL, and SeSrgA and their expression pattern in sv. Typhimurium indicate a diverse role for these enzymes in virulence.


    Organizational Affiliation

    Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia. b.heras@imb.uq.edu.au



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Disulfide isomeraseA201Salmonella enterica subsp. enterica serovar Typhimurium str. SL1344Mutation(s): 0 
Gene Names: dsbLSTM3193
EC: 5.3.4.1
Find proteins for Q8ZLZ0 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720))
Explore Q8ZLZ0 
Go to UniProtKB:  Q8ZLZ0
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.57 Å
  • R-Value Free: 0.184 
  • R-Value Work: 0.150 
  • R-Value Observed: 0.152 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 85.582α = 90
b = 46.593β = 90
c = 60.222γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
Blu-Icedata collection

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-03-09
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-11-01
    Changes: Refinement description