The Two-Component System GrvRS (EtaRS) RegulatesaceExpression in Enterococcus faecalis OG1RF
نویسندگان
چکیده
منابع مشابه
Two-component signal transduction in Enterococcus faecalis.
Enterococci are gram-positive constituents of the normal human microflora, typically colonizing the intestinal tract and skin (34, 47). However, these organisms are capable of causing disease as opportunistic pathogens, mainly in immunocompromised patients (35, 58). The problem of enterococcal infection has been aggravated by the emergence in the past decade of multiple antibiotic resistance, w...
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Enterococcus faecalis produces a specific penicillin-binding protein (PBP5) that mediates high-level resistance to the cephalosporin class of beta-lactam antibiotics. Deletion of a locus encoding a previously uncharacterized two-component regulatory system of E. faecalis (croRS) led to a 4,000-fold reduction in the MIC of the expanded-spectrum cephalosporin ceftriaxone. The cytoplasmic domain o...
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Bacterial growth as a biofilm on solid surfaces is strongly associated with the development of human infections. Biofilms on native heart valves (infective endocarditis) is a life-threatening disease as a consequence of bacterial resistance to antimicrobials in such a state. Enterococci have emerged as a cause of endocarditis and nosocomial infections despite being normal commensals of the gast...
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The culture supernatant fraction of an Enterococcus faecalis gelE mutant of strain OG1RF contained elevated levels of the secreted antigen SalB. Using differential fluorescence gel electrophoresis (DIGE) the salB mutant was shown to possess a unique complement of exoproteins. Differentially abundant exoproteins were identified using matrix-assisted laser desorption ionization-time of flight (MA...
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Enterococcus faecalis is a low-GC Gram-positive bacterium, a normal resident of the gastrointestinal (GI) tract, and an important hospital-acquired pathogen. An important risk factor for hospital-acquired enterococcal infections is prior therapy with broad-spectrum cephalosporins, antibiotics that impair cell wall biosynthesis by inhibiting peptidoglycan cross-linking. Enterococci are intrinsic...
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ژورنال
عنوان ژورنال: Infection and Immunity
سال: 2014
ISSN: 0019-9567,1098-5522
DOI: 10.1128/iai.02587-14