RRC ID 30181
著者 Yoshida K, Ohki YH, Murata M, Kinehara M, Matsuoka H, Satomura T, Ohki R, Kumano M, Yamane K, Fujita Y.
タイトル Bacillus subtilis LmrA is a repressor of the lmrAB and yxaGH operons: identification of its binding site and functional analysis of lmrB and yxaGH.
ジャーナル J Bacteriol
Abstract The Bacillus subtilis lmrAB operon is involved in multidrug resistance. LmrA is a repressor of its own operon, while LmrB acts as a multidrug efflux transporter. LmrA was produced in Escherichia coli cells and was shown to bind to the lmr promoter region, in which an LmrA-binding site was identified. Genome-wide screening involving DNA microarray analysis allowed us to conclude that LmrA also repressed yxaGH, which was not likely to contribute to the multidrug resistance. LmrA bound to a putative yxaGH promoter region, in which two tandem LmrA-binding sites were identified. The LmrA regulon was thus determined to comprise lmrAB and yxaGH. All three LmrA-binding sites contained an 18-bp consensus sequence, TAGACCRKTCWMTATAWT, which could play an important role in LmrA binding.
巻・号 186(17)
ページ 5640-8
公開日 2004-9-1
DOI 10.1128/JB.186.17.5640-5648.2004
PII 186/17/5640
PMID 15317768
PMC PMC516806
MeSH Amino Acid Sequence Bacillus subtilis / genetics* Bacterial Proteins / genetics Bacterial Proteins / metabolism Bacterial Proteins / physiology Base Sequence Binding Sites Cloning, Molecular Consensus Sequence Escherichia coli / genetics Escherichia coli / metabolism Gene Expression Profiling Gene Expression Regulation, Bacterial* Molecular Sequence Data Multidrug Resistance-Associated Proteins / genetics Multidrug Resistance-Associated Proteins / physiology* Oligonucleotide Array Sequence Analysis Operon Promoter Regions, Genetic Protein Binding Recombinant Proteins / genetics Recombinant Proteins / isolation & purification Recombinant Proteins / metabolism Regulon Repressor Proteins / genetics Repressor Proteins / metabolism* Repressor Proteins / physiology*
IF 3.006
引用数 17
WOS 分野 MICROBIOLOGY
リソース情報
原核生物(大腸菌) ME9665
原核生物(枯草菌) MBS281 MBS282 MBS283