RRC ID 53608
著者 Yamamoto K, Nonaka G, Ozawa T, Takumi K, Ishihama A.
タイトル Induction of the Escherichia coli yijE gene expression by cystine.
ジャーナル Biosci Biotechnol Biochem
Abstract Cystine is formed from two molecules of the cysteine under oxidized conditions, but is reversibly converted to cysteine by reduction. Growth of Escherichia coli is retarded in the presence of excess cystine. Transcriptome analysis showed 11 up-regulated and 26 down-regulated genes upon exposure to excess cystine. The reporter assay confirmed regulation by cystine of the expression of one up-regulated membrane gene, yijE, and two down-regulated membrane genes, yhdT and yihN. In order to identify the as yet unidentified gene encoding cystine efflux transporter, the putative cystine efflux candidate, yijE gene, was over-expressed. Expression of the yijE gene suppressed the slow growth of E. coli in the presence of high concentration of extracellular cystine. In good agreement, the knock-out of yijE gene increased the sensibility to cystine. These observations altogether imply that the yijE gene is involved in response to cystine in E. coli.
巻・号 79(2)
ページ 218-22
公開日 2015-1-1
DOI 10.1080/09168451.2014.972328
PMID 25346166
MeSH Cystine / pharmacology* Escherichia coli / drug effects Escherichia coli / genetics* Escherichia coli Proteins / genetics* Gene Expression Profiling Gene Knockout Techniques Genes, Reporter / genetics Membrane Proteins / genetics* Transcriptional Activation / drug effects*
IF 1.516
引用数 3
リソース情報
原核生物(大腸菌)