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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제15권 제1호
- 발행연도
- 2005.1
- 수록면
- 175 - 182 (8page)
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Salmonella pathogenicity island 1 (SPI1) geneexpression is regulated by many environmental signals suchas oxygen, osmolarity, and pH. Here, we examined changes inthe expression level of various regulatory proteins encodedwithin SPI1 in response to three different concentrations ofNaCl, using primer extension analysis. Transcription of all theregulatory genes tested was activated most when Salmonellawere grown in Luria Broth (LB) containing 0.17 M NaCl.The expression of hilA, invF, and hilD was decreased in thepresence of 0.47 M NaCl or in the absence of NaCl, whilehilC expression was almost constant regardless of the NaClconcentration when Salmonella were grown to exponentialphase under low-oxygen condition. The reduced expressionof hilA, invF, and hilD resulted in lower invasion of hilCmutant to the cultured animal cells when the mutant wasgrown in the presence of 0.47 M NaCl or in the absence ofNaCl prior to infection. Among the proteins secreted via theSPI1-type III secretion system (TTSS), the level of sopE2expression was not influenced by medium osmolarity. Variouseffects of osmolarity on virulence gene regulation observed inthis study is one example of multiple regulatory pathwaysused by Salmonella to cause infection.
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참고문헌 (24)
참고문헌 신청
/ 1977 / Influence ofosmolarity of the growth medium on the outer membraneprotein pattern of Escherichia coli : 623 ~ 630
/ 1999 / Differential regulationof components and substrates of the cetiosome 63 type IIIsecretion system of Salmonella typhimurium by the transcriptionactivators InvF and H
Ahn / 2001 / Physiologicalresponses of oxygen-tolerant anaerobic Bifidobacteriumlongum under oxygen 11 : 443 ~ 451
Bajaj / 1996 / Co-ordinate regulation of Salmonella typhimurium invasiongenes by environmental and regulatory factors is mediatedby control of hilA expression 22 : 703 ~ 714
Bakshi / 2000 / Identification of SopE2 a Salmonella secreted protein which is highly homologous toSopE and involved in bacterial invasion of epithelial cells 182 : 2341 ~ 23
/ 1999 / Differential regulationof components and substrates of the cetiosome 63 type IIIsecretion system of Salmonella typhimurium by the transcriptionactivators InvF and H
Ahn / 2001 / Physiologicalresponses of oxygen-tolerant anaerobic Bifidobacteriumlongum under oxygen 11 : 443 ~ 451
Bajaj / 1996 / Co-ordinate regulation of Salmonella typhimurium invasiongenes by environmental and regulatory factors is mediatedby control of hilA expression 22 : 703 ~ 714
Bakshi / 2000 / Identification of SopE2 a Salmonella secreted protein which is highly homologous toSopE and involved in bacterial invasion of epithelial cells 182 : 2341 ~ 23
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