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Indole induces the expression of multidrug exporter genes in Escherichia coli.
Hirakawa H, Inazumi Y, Masaki T, Hirata T, Yamaguchi A. Hirakawa H, et al. Among authors: yamaguchi a. Mol Microbiol. 2005 Feb;55(4):1113-26. doi: 10.1111/j.1365-2958.2004.04449.x. Mol Microbiol. 2005. PMID: 15686558
In this study, we investigated the compounds that induce the expression of these xenobiotic exporter genes, and found that indole induces a variety of xenobiotic exporter genes including acrD, acrE, cusB, emrK, mdtA, mdtE and yceL. ...These observations indicate that BaeR …
In this study, we investigated the compounds that induce the expression of these xenobiotic exporter genes, and found that indole induces …
Membrane topology of a multidrug efflux transporter, AcrB, in Escherichia coli.
Fujihira E, Tamura N, Yamaguchi A. Fujihira E, et al. Among authors: yamaguchi a. J Biochem. 2002 Jan;131(1):145-51. doi: 10.1093/oxfordjournals.jbchem.a003069. J Biochem. 2002. PMID: 11754746
AcrA/B in Escherichia coli is a multicomponent system responsible for intrinsic resistance to a wide range of toxic compounds, and probably cooperates with the outer membrane protein TolC. ...To determine the topology of the inner membrane component AcrB, we employe …
AcrA/B in Escherichia coli is a multicomponent system responsible for intrinsic resistance to a wide range of toxic compounds, …
EvgA of the two-component signal transduction system modulates production of the yhiUV multidrug transporter in Escherichia coli.
Nishino K, Yamaguchi A. Nishino K, et al. Among authors: yamaguchi a. J Bacteriol. 2002 Apr;184(8):2319-23. doi: 10.1128/jb.184.8.2319-2323.2002. J Bacteriol. 2002. PMID: 11914367 Free PMC article.
Nishino and A. Yamaguchi, J. Bacteriol. 183:1455-1458, 2001). Here we present data showing that EvgA contributes to multidrug resistance through increased expression of the multidrug transporter yhiUV gene....
Nishino and A. Yamaguchi, J. Bacteriol. 183:1455-1458, 2001). Here we present data showing that EvgA contributes to multidrug …
[Postgenomic approach for bacterial drug resistance factors based on drug exporters and two-component signal transduction systems].
Nishino K, Yamaguchi A. Nishino K, et al. Among authors: yamaguchi a. Nihon Saikingaku Zasshi. 2002 May;57(2):453-64. Nihon Saikingaku Zasshi. 2002. PMID: 12048886 Review. Japanese. No abstract available.
The putative response regulator BaeR stimulates multidrug resistance of Escherichia coli via a novel multidrug exporter system, MdtABC.
Nagakubo S, Nishino K, Hirata T, Yamaguchi A. Nagakubo S, et al. Among authors: yamaguchi a. J Bacteriol. 2002 Aug;184(15):4161-7. doi: 10.1128/jb.184.15.4161-4167.2002. J Bacteriol. 2002. PMID: 12107133 Free PMC article.
Overproduction of the response regulator BaeR confers resistance to novobiocin and bile salts in a DeltaacrAB mutant by stimulating drug exporter gene expression. ...A BLAST search suggested that such a heteromultimer-type RND exporter constitutes a un …
Overproduction of the response regulator BaeR confers resistance to novobiocin and bile salts in a DeltaacrAB mutant by stimulating d …
Crystal structure of bacterial multidrug efflux transporter AcrB.
Murakami S, Nakashima R, Yamashita E, Yamaguchi A. Murakami S, et al. Among authors: yamaguchi a. Nature. 2002 Oct 10;419(6907):587-93. doi: 10.1038/nature01050. Nature. 2002. PMID: 12374972
We have determined the crystal structure of AcrB at 3.5 A resolution. Three AcrB protomers are organized as a homotrimer in the shape of a jellyfish. Each protomer is composed of a transmembrane region 50 A thick and a 70 A protrud …
We have determined the crystal structure of AcrB at 3.5 A resolution. Three AcrB protomers are organized as a homotrimer in th …
Comprehensive studies of drug resistance mediated by overexpression of response regulators of two-component signal transduction systems in Escherichia coli.
Hirakawa H, Nishino K, Hirata T, Yamaguchi A. Hirakawa H, et al. Among authors: yamaguchi a. J Bacteriol. 2003 Mar;185(6):1851-6. doi: 10.1128/jb.185.6.1851-1856.2003. J Bacteriol. 2003. PMID: 12618449 Free PMC article.
We cloned all of these 32 ORFs into a multicopy expression vector and investigated whether or not they confer drug resistance via control of drug resistance determinants. ...
We cloned all of these 32 ORFs into a multicopy expression vector and investigated whether or not they confer drug resistance via con …
Global analysis of genes regulated by EvgA of the two-component regulatory system in Escherichia coli.
Nishino K, Inazumi Y, Yamaguchi A. Nishino K, et al. Among authors: yamaguchi a. J Bacteriol. 2003 Apr;185(8):2667-72. doi: 10.1128/jb.185.8.2667-2672.2003. J Bacteriol. 2003. PMID: 12670992 Free PMC article.
Nishino and A. Yamaguchi, J. Bacteriol. 184:2319-2323, 2002). To understand the whole picture of EvgA regulation, DNA macroarray analysis of the effect of EvgA overproduction was performed. ...
Nishino and A. Yamaguchi, J. Bacteriol. 184:2319-2323, 2002). To understand the whole picture of EvgA regulation, DNA macroarr …
Membrane topology of ABC-type macrolide antibiotic exporter MacB in Escherichia coli.
Kobayashi N, Nishino K, Hirata T, Yamaguchi A. Kobayashi N, et al. Among authors: yamaguchi a. FEBS Lett. 2003 Jul 10;546(2-3):241-6. doi: 10.1016/s0014-5793(03)00579-9. FEBS Lett. 2003. PMID: 12832048
MacB is an ABC-type membrane protein that exports only macrolide compounds containing 14- and 15-membered lactones, cooperating with a membrane fusion protein, MacA, and a multifunctional outer membrane channel, TolC. ...As a result, it was revealed that MacB …
MacB is an ABC-type membrane protein that exports only macrolide compounds containing 14- and 15-membered lactones, cooperating with a
Roles of TolC-dependent multidrug transporters of Escherichia coli in resistance to beta-lactams.
Nishino K, Yamada J, Hirakawa H, Hirata T, Yamaguchi A. Nishino K, et al. Among authors: yamaguchi a. Antimicrob Agents Chemother. 2003 Sep;47(9):3030-3. doi: 10.1128/aac.47.9.3030-3033.2003. Antimicrob Agents Chemother. 2003. PMID: 12937021 Free PMC article.
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