Document Detail


Chaperone-dependent mechanisms for acid resistance in enteric bacteria.
MedLine Citation:
PMID:  22459131     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The extremely acidic environment of the mammalian stomach not only serves to facilitate food digestion but also acts as a natural barrier against infections of food-borne pathogens. Many pathogenic bacteria, such as enterohemorrhagic Escherichia coli, can breach this host defense and cause severe diseases. These pathogens have evolved multiple intricate strategies to overcome the bactericidal activity of acids. In particular, recent studies have uncovered the central roles of two periplasmic chaperones, HdeA and HdeB, in protecting enteric bacteria from extremely acidic conditions. Here, we review recent advances in the understanding of the acid resistance mechanisms of Gram-negative bacteria and focus on the mechanisms of HdeA and HdeB in preventing acid-induced protein aggregation and facilitating protein refolding following pH neutralization.
Authors:
Weizhe Hong; Ye E Wu; Xinmiao Fu; Zengyi Chang
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-3-27
Journal Detail:
Title:  Trends in microbiology     Volume:  -     ISSN:  1878-4380     ISO Abbreviation:  -     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-3-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9310916     Medline TA:  Trends Microbiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Affiliation:
State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, and Center for Protein Science, Peking University, Beijing, 100871, China; Department of Biology, Stanford University, Stanford, CA 94305, USA.
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