Genetic characterization of the Bifidobacterium breve UCC 2003 hrcA locus

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TY  - JOUR
  - Ventura, M,Canchaya, C,Bernini, V,Del Casale, A,Dellaglio, F,Neviani, E,Fitzgerald, GF,van Sinderen, D
  - 2005
  - May
  - Applied and Environmental Microbiology
  - Genetic characterization of the Bifidobacterium breve UCC 2003 hrcA locus
  - Validated
  - ()
  - ESCHERICHIA-COLI DNAJ TRANSCRIPTIONAL ORGANIZATION UCC 2003 IDENTIFICATION SEQUENCES HOMOLOGS CLONING OPERON LACTIS GROEL
  - 71
  - 8998
  - 9007
  - The bacterial heat shock response is characterized by the elevated expression of a number of chaperone complexes and transcriptional regulators, including the DnaJ and the HrcA proteins. Genome analysis of Bifidobacterium breve UCC 2003 revealed a second copy of a dnaJ gene, named dnaJ(2), which is flanked by the hrcA gene in a genetic constellation that appears to be unique to the actinobacteria. Phylogenetic analysis using 53 bacterial dnaJ sequences, including both dnaJ(1) and dnaJ(2) sequences, suggests that these genes have followed a different evolutionary development. Furthermore, the B. breve UCC 2003 dnaJ(2) gene seems to be regulated in a manner that is different from that of the previously characterized dnaJ(1) gene. The dnaJ(2) gene, which was shown to be part of a 2.3-kb bicistronic operon with hrcA, was induced by osmotic shock but not significantly by heat stress. This induction pattern is unlike those of other characterized dnaJ genes and may be indicative of a unique stress adaptation strategy by this commensal microorganism.
  - DOI 10.1128/AEM.71.12.8998-9007.2005
DA  - 2005/05
ER  - 
@article{V43337110,
   = {Ventura,  M and Canchaya,  C and Bernini,  V and Del Casale,  A and Dellaglio,  F and Neviani,  E and Fitzgerald,  GF and van Sinderen,  D },
   = {2005},
   = {May},
   = {Applied and Environmental Microbiology},
   = {Genetic characterization of the Bifidobacterium breve UCC 2003 hrcA locus},
   = {Validated},
   = {()},
   = {ESCHERICHIA-COLI DNAJ TRANSCRIPTIONAL ORGANIZATION UCC 2003 IDENTIFICATION SEQUENCES HOMOLOGS CLONING OPERON LACTIS GROEL},
   = {71},
  pages = {8998--9007},
   = {{The bacterial heat shock response is characterized by the elevated expression of a number of chaperone complexes and transcriptional regulators, including the DnaJ and the HrcA proteins. Genome analysis of Bifidobacterium breve UCC 2003 revealed a second copy of a dnaJ gene, named dnaJ(2), which is flanked by the hrcA gene in a genetic constellation that appears to be unique to the actinobacteria. Phylogenetic analysis using 53 bacterial dnaJ sequences, including both dnaJ(1) and dnaJ(2) sequences, suggests that these genes have followed a different evolutionary development. Furthermore, the B. breve UCC 2003 dnaJ(2) gene seems to be regulated in a manner that is different from that of the previously characterized dnaJ(1) gene. The dnaJ(2) gene, which was shown to be part of a 2.3-kb bicistronic operon with hrcA, was induced by osmotic shock but not significantly by heat stress. This induction pattern is unlike those of other characterized dnaJ genes and may be indicative of a unique stress adaptation strategy by this commensal microorganism.}},
   = {DOI 10.1128/AEM.71.12.8998-9007.2005},
  source = {IRIS}
}
AUTHORSVentura, M,Canchaya, C,Bernini, V,Del Casale, A,Dellaglio, F,Neviani, E,Fitzgerald, GF,van Sinderen, D
YEAR2005
MONTHMay
JOURNAL_CODEApplied and Environmental Microbiology
TITLEGenetic characterization of the Bifidobacterium breve UCC 2003 hrcA locus
STATUSValidated
TIMES_CITED()
SEARCH_KEYWORDESCHERICHIA-COLI DNAJ TRANSCRIPTIONAL ORGANIZATION UCC 2003 IDENTIFICATION SEQUENCES HOMOLOGS CLONING OPERON LACTIS GROEL
VOLUME71
ISSUE
START_PAGE8998
END_PAGE9007
ABSTRACTThe bacterial heat shock response is characterized by the elevated expression of a number of chaperone complexes and transcriptional regulators, including the DnaJ and the HrcA proteins. Genome analysis of Bifidobacterium breve UCC 2003 revealed a second copy of a dnaJ gene, named dnaJ(2), which is flanked by the hrcA gene in a genetic constellation that appears to be unique to the actinobacteria. Phylogenetic analysis using 53 bacterial dnaJ sequences, including both dnaJ(1) and dnaJ(2) sequences, suggests that these genes have followed a different evolutionary development. Furthermore, the B. breve UCC 2003 dnaJ(2) gene seems to be regulated in a manner that is different from that of the previously characterized dnaJ(1) gene. The dnaJ(2) gene, which was shown to be part of a 2.3-kb bicistronic operon with hrcA, was induced by osmotic shock but not significantly by heat stress. This induction pattern is unlike those of other characterized dnaJ genes and may be indicative of a unique stress adaptation strategy by this commensal microorganism.
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URL
DOI_LINKDOI 10.1128/AEM.71.12.8998-9007.2005
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