Literature DB >> 15863292

Role of HdeA in acid resistance and virulence in Brucella abortus 2308.

Michelle Wright Valderas1, Rosemarie B Alcantara, John E Baumgartner, Bryan H Bellaire, Gregory T Robertson, Wai-Leung Ng, John M Richardson, Malcolm E Winkler, R Martin Roop.   

Abstract

Two-dimensional gel electrophoretic analysis of cell lysates suggests that stationary phase production of wild-type levels of an ortholog of the low pH dependent chaperone HdeA in Brucella abortus 2308 during growth in a minimal medium requires the presence of the RNA binding protein Hfq. Although mutational analysis demonstrated that HdeA contributes to acid resistance in this bacterium, this protein is not required for wild-type virulence in the BALB/c mouse model. These experimental findings indicate that the brucellae rely upon additional gene products to resist the acidic conditions they encounter in the phagosomal compartment of host macrophages.

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Year:  2005        PMID: 15863292     DOI: 10.1016/j.vetmic.2005.01.018

Source DB:  PubMed          Journal:  Vet Microbiol        ISSN: 0378-1135            Impact factor:   3.293


  23 in total

1.  The complex role of the N-terminus and acidic residues of HdeA as pH-dependent switches in its chaperone function.

Authors:  Sayuri Pacheco; Marlyn A Widjaja; Jafaeth S Gomez; Karin A Crowhurst; Ravinder Abrol
Journal:  Biophys Chem       Date:  2020-05-19       Impact factor: 2.352

2.  Identification of Recombination and Positively Selected Genes in Brucella.

Authors:  Udayakumar S Vishnu; Jagadesan Sankarasubramanian; Jayavel Sridhar; Paramasamy Gunasekaran; Jeyaprakash Rajendhran
Journal:  Indian J Microbiol       Date:  2015-07-29       Impact factor: 2.461

3.  HdeB functions as an acid-protective chaperone in bacteria.

Authors:  Jan-Ulrik Dahl; Philipp Koldewey; Loïc Salmon; Scott Horowitz; James C A Bardwell; Ursula Jakob
Journal:  J Biol Chem       Date:  2014-11-12       Impact factor: 5.157

4.  Comparative study of the roles of AhpC and KatE as respiratory antioxidants in Brucella abortus 2308.

Authors:  Kendra H Steele; John E Baumgartner; Michelle Wright Valderas; R Martin Roop
Journal:  J Bacteriol       Date:  2010-07-30       Impact factor: 3.490

5.  Comparative proteomics reveal distinct chaperone-client interactions in supporting bacterial acid resistance.

Authors:  Shuai Zhang; Dan He; Yi Yang; Shixian Lin; Meng Zhang; Shizhong Dai; Peng R Chen
Journal:  Proc Natl Acad Sci U S A       Date:  2016-09-12       Impact factor: 11.205

6.  Comparative phylogenomics and evolution of the Brucellae reveal a path to virulence.

Authors:  Alice R Wattam; Jeffrey T Foster; Shrinivasrao P Mane; Stephen M Beckstrom-Sternberg; James M Beckstrom-Sternberg; Allan W Dickerman; Paul Keim; Talima Pearson; Maulik Shukla; Doyle V Ward; Kelly P Williams; Bruno W Sobral; Renee M Tsolis; Adrian M Whatmore; David O'Callaghan
Journal:  J Bacteriol       Date:  2013-12-13       Impact factor: 3.490

7.  Glutamate decarboxylase-dependent acid resistance in Brucella spp.: distribution and contribution to fitness under extremely acidic conditions.

Authors:  Maria Alessandra Damiano; Daniela Bastianelli; Sascha Al Dahouk; Stephan Köhler; Axel Cloeckaert; Daniela De Biase; Alessandra Occhialini
Journal:  Appl Environ Microbiol       Date:  2014-11-07       Impact factor: 4.792

8.  SodA is a major metabolic antioxidant in Brucella abortus 2308 that plays a significant, but limited, role in the virulence of this strain in the mouse model.

Authors:  Daniel W Martin; John E Baumgartner; Jason M Gee; Eric S Anderson; R Martin Roop
Journal:  Microbiology       Date:  2012-05-03       Impact factor: 2.777

Review 9.  Survival of the fittest: how Brucella strains adapt to their intracellular niche in the host.

Authors:  R Martin Roop; Jennifer M Gaines; Eric S Anderson; Clayton C Caswell; Daniel W Martin
Journal:  Med Microbiol Immunol       Date:  2009-09-22       Impact factor: 3.402

Review 10.  Contrasting Lifestyles Within the Host Cell.

Authors:  Elizabeth Di Russo Case; James E Samuel
Journal:  Microbiol Spectr       Date:  2016-02
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