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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
- 2020.1
- 수록면
- 185 - 192 (8page)
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The global carbon storage regulator (Csr) system is conserved in bacteria and functions as a regulator in the exponential and stationary phases of growth in batch culture. The Csr system plays a role in the central carbon metabolism, virulence, motility, resistance to oxidative stress, and biofilm formation. Although the Csr was extensively studied in Gram negative bacteria, it has been reported only in the control of motility in Bacillus subtilis among Gram positive bacteria. The goal of this study was to explore the role of the csrA gene of Bacillus licheniformis M2-7 on motility and the bacterial ability to use hydrocarbons as carbon source. We deleted the csrA gene of B. licheniformis M2-7 using the plasmid pCsr-L, harboring the spectinomycin cassette obtained from the plasmid pHP45-omega2. Mutants were grown on culture medium supplemented with 2% glucose or 0.1% gasoline and motility was assessed by electron microscopy. We observed that CsrA negatively regulates motility by controlling the expression of the hag gene and the synthesis of flagellin. Notably, we showed the ability of B. licheniformis to use gasoline as a unique carbon source. Our results demonstrated that CsrA is an indispensable regulator for the growth of B. licheniformis M2-7 on gasoline.
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참고문헌 (28)
참고문헌 신청
Romeo T / 1998 / Global regulation by the small RNA-binding protein CsrA and the non-coding RNA molecule CsrB / Mol. Microbiol 29:1321~1330
Babitzke P / 2007 / CsrB sRNA family : sequestration of RNA-binding regulatory proteins / Curr. Opin. Microbiol 10:156~163
Liu MY / 1997 / The RNA molecule CsrB binds to the global regulatory protein CsrA and antagonizes its activity in Escherichia coli / J. Biol. Chem 272:17502~17510
Suzuki K / 2002 / Regulatory circuitry of the CsrA/CsrB and BarA/UvrY systems of Escherichia coli / J. Bacteriol 184:5130~5140
Dubey AK / 2005 / RNA sequence and secondary structure participate in high-affinity CsrA-RNA interaction / RNA 11:1579~1587
Babitzke P / 2007 / CsrB sRNA family : sequestration of RNA-binding regulatory proteins / Curr. Opin. Microbiol 10:156~163
Liu MY / 1997 / The RNA molecule CsrB binds to the global regulatory protein CsrA and antagonizes its activity in Escherichia coli / J. Biol. Chem 272:17502~17510
Suzuki K / 2002 / Regulatory circuitry of the CsrA/CsrB and BarA/UvrY systems of Escherichia coli / J. Bacteriol 184:5130~5140
Dubey AK / 2005 / RNA sequence and secondary structure participate in high-affinity CsrA-RNA interaction / RNA 11:1579~1587
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