메뉴 건너뛰기
소속 기관 / 학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
고객센터 ENG
주제분류

논문 기본 정보

저자정보
출처
Wiley MicrobiologyOpen 13(6)
오류 신고하기
표지

검색

    초록·키워드

    Cereibacter sphaeroides has a quorum sensing (QS) system that has been partially characterized. Using a bioinformatic approach, six LuxR homologs and one homolog of the acylhomoserine lactone synthase were identified in this bacterium, including the previously characterized CerR and CerI proteins. This study focused on determining the roles of two LuxR homologs, CerM and CerN. CerN lacks the HTH domain and, together with CerM, controls the expression of ctrA, which is part of the TCS CckA/ChpT/CtrA. CtrA is widely conserved in alpha-proteobacteria and regulates flagellar motility and other cellular processes. Genetic and biochemical data suggest that CerM indirectly represses ctrA expression, which is counteracted by its interaction with CerN-AHL. A transcriptomic study identified 181 genes regulated by CerM/CerN, with a conserved sequence in their regulatory regions likely indicating the CerM binding site. This hypothesis was supported by in vitro and in vivo DNA-protein interaction assays. Our results identified a transcription factor that could connect the QS system with the regulation of the two-component system CckA/ChpT/CtrA.

    본문·목차

    최근 본 자료 전체보기