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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.1
- 수록면
- 134 - 138 (5page)
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초록· 키워드
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Salmonella enterica infects a broad range of host animals, and zoonostic infection threatens both public health and the livestock and meat processing industries. Many antimicrobials have been developed to target Salmonella envelope that performs essential bacterial functions; however, there are very few analytical methods that can be used to validate the efficacy of these antimicrobials. In this study, to develop a potential biosensor for Salmonella envelope stress, we examined the transcription of the S. enterica serovar typhimurium spy gene, the ortholog of which in Escherichia coli encodes Spy (${\underline{s}}pheroplast$ ${\underline{p}}rotein$ ${\underline{y}}$). Spy is a chaperone protein expressed and localized in the periplasm of E. coli during spheroplast formation, or by exposure to protein denaturing conditions. spy expression in S. typhimurium was examined by constructing a spy-gfp transcriptional fusion. S. typhimurium spy transcription was strongly induced during spheroplast formation, and also when exposed to membrane-disrupting agents, including ethanol and the antimicrobial peptide polymyxin B. Moreover, spy induction required the activity of regulator proteins BaeR and CpxR, which are part of the major envelope stress response systems BaeS/BaeR and CpxA/CpxR, respectively. Results suggest that monitoring spy transcription may be useful to determine whether a molecule particularly cause envelope stress in Salmonella.
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참고문헌 (18)
참고문헌 신청
Appia-Ayme, C. / 2012 / ZraP is a periplasmic molecular chaperone and a repressor of the zinc-responsive two-component regulator ZraSR / Biochem. J 442:85~93
Birdsell, D. C. / 1967 / Production and ultrastructure of lysozyme and ethylenediaminetetraacetatelysozyme spheroplasts of Escherichia coli / J. Bacteriol 93:427~437
Bury-Mone, S. / 2009 / Global analysis of extracytoplasmic stress signaling in Escherichia coli / PLoS Genet 5:e1000651
Crump, J. A. / 2015 / Epidemiology, clinical presentation, laboratory diagnosis, antimicrobial resistance, and antimicrobial management of invasive Salmonella infections / Clin. Microbiol. Rev 28:901~937
Datsenko, K. A. / 2000 / One-step inactivation of chromosomal genes in Escherichia coli K-12 using PCR products / Proc. Natl. Acad. Sci. USA 97:6640~6645
Birdsell, D. C. / 1967 / Production and ultrastructure of lysozyme and ethylenediaminetetraacetatelysozyme spheroplasts of Escherichia coli / J. Bacteriol 93:427~437
Bury-Mone, S. / 2009 / Global analysis of extracytoplasmic stress signaling in Escherichia coli / PLoS Genet 5:e1000651
Crump, J. A. / 2015 / Epidemiology, clinical presentation, laboratory diagnosis, antimicrobial resistance, and antimicrobial management of invasive Salmonella infections / Clin. Microbiol. Rev 28:901~937
Datsenko, K. A. / 2000 / One-step inactivation of chromosomal genes in Escherichia coli K-12 using PCR products / Proc. Natl. Acad. Sci. USA 97:6640~6645
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