Role ofluxSinBacillus anthracisgrowth and virulence factor expression
نویسندگان
چکیده
منابع مشابه
Role of luxS in Bacillus anthracis growth and virulence factor expression.
Quorum-sensing (QS), the regulation of bacterial gene expression in response to changes in cell density, involves pathways that synthesize signaling molecules (auto-inducers). The luxS/AI-2-mediated QS system has been identified in both gram-positive and gram-negative bacteria. Bacillus anthracis, the etiological agent of anthrax, possesses genes involved in luxS/AI-2-mediated QS, and deletion ...
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Streptococcus mutans, a major oral pathogen responsible for dental caries formation, possesses a variety of mechanisms for survival in the human oral cavity, where the conditions of the external environment are diverse and in a constant state of flux. The formation of biofilms, survival under conditions of acidic pH, and production of mutacins are considered to be important virulence determinan...
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Listeria monocytogenes B and positive regulatory factor A (PrfA) are pleiotropic transcriptional regulators that coregulate a subset of virulence genes. A positive regulatory role for B in prfA transcription has been well established; therefore, observations of increased virulence gene expression and hemolytic activity in a sigB strain initially appeared paradoxical. To test the hypothesis that...
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BACKGROUND D-alanylated lipoteichoic acid is a virtually ubiquitous component of gram-positive cell walls. Mutations in the dltABCD operon of numerous species exhibit pleiotropic effects, including reduced virulence, which has been attributed to increased binding of cationic antimicrobial peptides to the more negatively charged cell surface. In this study, we have further investigated the effec...
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ژورنال
عنوان ژورنال: Virulence
سال: 2010
ISSN: 2150-5594,2150-5608
DOI: 10.4161/viru.1.2.10752