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an important global regulator controlling the production ofnumerous virulence factors such as capsular polysaccharidesin bacterial pathogens. The nucleotide and deduced aminoacid sequences of smcR, a homolog of V. harveyi luxRidentified from V. vulnificus ATCC29307, were analyzed. Theamino acid sequence of SmcR from V. vulnificus was 72 to92% similar to those of LuxR homologs from Vibrio spp.isogenic mutant, whose smcR gene was inactivated by alelicexchanges, and by evaluating its phenotype changes in vitroand in mice. The disruption of smcR resulted in a significantalteration in biofilm formation, in type of colony morphology,and in motility. When compared with the wild-type, thesmcR mutant exhibited reduced survival under adverseconditions, such as acidic pH and hyperosmotic stress. ThesmcR mutant exhibited decreased cytotoxic activity towardin vitro. Furthermore, the intraperitoneal LD50of the smcR mutant was approximately 102 times higher thanthat of parental wild-type. Therefore, it apears that SmcRis a novel global regulator, controling numerous genescontributing to the pathogenesis as wel as survival of V.vulnificus.
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참고문헌 (35건) : 자료제공( 네이버학술정보 )
| 번호 | 참고문헌 | 국회도서관 소장유무 |
|---|---|---|
| 1 | Chen, X, (2002) Structural identification of a bacterial quorum-sensing signal containing boron, | 미소장 |
| 2 | Croxatto, A, (2002) VanT, a homologue of Vibrio harveyi LuxR, regulates serine, metalloprotease, pigment, and biofilm production in Vibrio anguillarum, | 미소장 |
| 3 | de Kevit, (2000) Bacterial quorum sensing in pathogenic relationships, | 미소장 |
| 4 | Kaper, (1991) Construction of an eae deletion mutant of enteropathogenic Escherichia coli by using a positive-selection suicide vector, | 미소장 |
| 5 | Fuqua, (1994) Quorum sensing in bacteria The LuxR-LuxI family of cell density-responsive transcriptional regulators, | 미소장 |
| 6 | Greenberg, (1979) Induction of luciferase synthesis in Beneckea harveyi by other marine bacteria, | 미소장 |
| 7 | Jeong, H. S, (2003) SmcR and cyclic AMP receptor protein coactivate Vibrio vulnificus vvpE encoding elastase through the RpoSdependent promoter in a synergistic manner, | 미소장 |
| 8 | Jeong, K. C, (2000) Construction and phenotypic evaluation of Vibrio vulnificus vvpE mutant for elastolytic protease, | 미소장 |
| 9 | Jobling, M, (1997) Characterization of hapR, a positive regulator of the Vibrio cholerae HA/ protease gene hap, and its identification as a functional homologue of the Vibrio harveyi luxR gene, | 미소장 |
| 10 | Ju, H. M, (2005) Identification of the Vibrio vulnificus fexA gene and evaluation of its influence on virulence, | 미소장 |
| 11 | Keen, (1988191-197) Improved broad-host-range plasmids for DNA cloning in Gram-negative bacteria, | 미소장 |
| 12 | Kim S. Y, (2003) Regulation of Vibrio vulnificus virulence by the LuxS quorum-sensing system, | 미소장 |
| 13 | Kovacikova, G, (2002) Regulation of virulence gene expression in Vibrio cholerae by quorum sensing: HapR functions at the aphA promoter, | 미소장 |
| 14 | Lee, B. C, (2004) Application of sulforhodamine B assay for determining cytotoxicity of Vibrio vulnificus against human intestinal cells, | 미소장 |
| 15 | Lee, J. H, (2003) Identification and characterization of the Vibrio vulnificus phosphomannomutase gene, | 미소장 |
| 16 | Linkous, D. A, (1999) Pathogenesis of Vibrio vulnificus, | 미소장 |
| 17 | McCarter, L. L, (1998) OpaR, a homolog of Vibrio harveyi LuxR, controls opacity of Vibrio parahaemolyticus, | 미소장 |
| 18 | McDougald, D, (2000) The marine pathogen Vibrio vulnificus encodes a putative homologue of the Vibrio harveyi regulatory gene, | 미소장 |
| 19 | McDougald, D, (2001) SmcRdependent regulation of adaptive phenotypes in Vibrio vulnificus, | 미소장 |
| 20 | (1992) Environmental signals controlling expression of virulence determinants in bacteria, | 미소장 |
| 21 | Miller, M. B, (2001) Quorum sensing in bacteria, | 미소장 |
| 22 | Miller, (1989) Coordinate regulation and sensory transduction in the control of bacterial virulence, | 미소장 |
| 23 | Miller, (1988) A novel suicide vector and its use in construction of insertion mutations Osmoregulation of outer membrane proteins and virulence determinants in Vibrio cholerae requires toxR, | 미소장 |
| 24 | Nesper, J, (2001) Characterization of Vibrio cholerae O1 El Tor galU and galE mutants: Influence on lipopolysaccharide structure, | 미소장 |
| 25 | Oka, (1981) Nucleotide sequence of the kanamycin resistance transposon Tn903, | 미소장 |
| 26 | Park, N. A, (2006) Identification and characterization of the wbpO gene essential for lipopolysaccharide synthesis in Vibrio vulnificus, | 미소장 |
| 27 | Reed, (1938) A simple method of estimating fifty percent endpoints, | 미소장 |
| 28 | Rhee, J. E, (2002) Identification of the cadBA operon from Vibrio vulnificus and its influence on survival to acid stress, | 미소장 |
| 29 | Rhee, J. E, (2004) Identification of the Vibrio vulnificus cadC and evaluation of its role in acid tolerance, | 미소장 |
| 30 | Molecular cloning of a cDNA encoding a bovine growth differentiation factor-9 (GDF-9) and expression of GDF-9 in bovine ovarian oocytes and in vitro-produced embryos.  |
미소장 |
| 31 | Schauder, S, (2001) The language of bacteria, | 미소장 |
| 32 | Schauder, S, (2001) The LuxS family of bacterial autoinducers: Biosynthesis of a novel quorum-sensing signal molecule, | 미소장 |
| 33 | Shao, C. P, (2001) Regulation of metalloprotease gene expression in Vibrio vulnificus by a Vibrio harveyi LuxR homologue, | 미소장 |
| 34 | Strom, M, (2000) Epidemiology and pathogenesis of Vibrio vulnificus, | 미소장 |
| 35 | Williams, P, (2000) Quorum sensing and the populationdependent control of virulence, | 미소장 |
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