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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제25권 제6호
- 발행연도
- 2015.1
- 수록면
- 771 - 781 (11page)
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초록· 키워드
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To examine if the molecular chaperone DnaK operon proteins of Streptococcus suis type 2 (SS2) are involved in adhesion to host cells, the abundance values of these proteins from the surface of two SS2 strains of different adhesion capability were compared. Their roles in growth and adhesion to human laryngeal epithelial cell line HEp-2 cells were investigated on SS2 strain HA9801 and its mutants with DnaK operon genes partially knocked-out (PKO mutant) under heat stress. The major difference was that DnaJ was more abundant in strain HA9801 than in strain JX0811. Pretreatment of the bacteria with hyperimmune sera to DnaJ, but not with those to other proteins, could significantly reduce SS2 adhesion to HEp-2 cells. PKO of dnaJ g ene resulted in decreased SS2 growth at 37oC and 42oC, and reduced its adhesion to HEp-2 cells. The wild-type strain stressed at 42oC had increased expression of DnaJ on its surface and elevated adhesion to HEp-2 cells, which was also inhibitable by DnaJ specific antiserum. These results indicate that the DnaJ of S. suis type 2 is important not only for thermotolerance but also for adhesion to host cells. Because DnaJ expression is increased upon temperature upshift with increased exposure on the bacterial surface, the febrile conditions of the cases with systemic infections might help facilitate bacterial adhesion to host cells. DnaJ could be one of the potential candidates as a subunit vaccine because of its good immunogenicity.
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참고문헌 (23)
참고문헌 신청
Brassard J / 2004 / Cloning and purification of the Streptococcus suis serotype 2 glyceraldehyde-3-phosphate dehydrogenase and its involvement as an adhesin / Vet. Microbiol
Chen B / 2011 / Largescale identification of bacteria?host crosstalk by affinity chromatography: capturing the interactions of Streptococcus suis proteins with host cells / J
Chen T / 2012 / Construction and characterization of a Streptococcus suis serotype 2 recombinant expressing enhanced green fluorescent protein / PLoS One 7 : e39697 ~
Duppre E / 2011 / Specific and promiscuous functions of multiple DnaJ proteins in Synechocystis sp. PCC 6803 / Microbiology 157 : 1269 ~ 1278
Esgleas M / 2009 / Immunization with SsEno fails to protect mice against challenge with Streptococcus suis serotype 2 / FEMS Microbiol. Lett 294 : 82 ~ 88
Chen B / 2011 / Largescale identification of bacteria?host crosstalk by affinity chromatography: capturing the interactions of Streptococcus suis proteins with host cells / J
Chen T / 2012 / Construction and characterization of a Streptococcus suis serotype 2 recombinant expressing enhanced green fluorescent protein / PLoS One 7 : e39697 ~
Duppre E / 2011 / Specific and promiscuous functions of multiple DnaJ proteins in Synechocystis sp. PCC 6803 / Microbiology 157 : 1269 ~ 1278
Esgleas M / 2009 / Immunization with SsEno fails to protect mice against challenge with Streptococcus suis serotype 2 / FEMS Microbiol. Lett 294 : 82 ~ 88
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