| 货号 | 13209-5mg |
| 描述 | Quorum sensing is a regulatory system used by bacteria for controlling gene expression in response to increasing cell density.1 This regulatory process manifests itself with a variety of phenotypes including biofilm formation and virulence factor production.2 Coordinated gene expression is achieved by the production, release, and detection of small diffusible signal molecules called autoinducers. The N-acylated homoserine lactones (AHLs) comprise one such class of autoinducers, each of which generally consists of a fatty acid coupled with homoserine lactone (HSL). Regulation of bacterial quorum sensing signaling systems to inhibit pathogenesis represents a new approach to antimicrobial therapy in the treatment of infectious diseases.3 AHLs vary in acyl group length (C4-C18), in the substitution of C3 (hydrogen, hydroxyl, or oxo group), and in the presence or absence of one or more carbon-carbon double bonds in the fatty acid chain. These differences confer signal specificity through the affinity of transcriptional regulators of the LuxR family.4C18-HSL is one of four lipophilic, long acyl side-chain bearing AHLs produced by the LuxI AHL synthase homolog SinI involved in quorum sensing signaling in strains of S. meliloti, a nitrogen-fixing bacterial symbiont of the legume M. sativa.5C18-HSL and other hydrophobic AHLs tend to localize in relatively lipophilic cellular environments of bacteria and cannot diffuse freely through the cell membrane. The long-chain N-acylhomoserine lactones may be exported from cells by efflux pumps or may be transported between communicating cells by way of extracellular outer membrane vesicles.6,7 |
| 别名 | C18-HSL; |
| 供应商 | Cayman |
| 应用文献 | |
| 1.González, J.E., and Keshavan, N.D. Messing with bacterial quorum sensing. Microbiology and Molecular Biology Reviews 70(4), 859-875 (2006). 2.Gould, T.A.,Herman, J.,Krank, J., et al. Specificity of acyl-homoserine lactone syntheses examined by mass spectrometry. Journal of Bacteriology 188(2), 773-783 (2006). 3.Cegelski, L.,Marshall, G.R.,Eldridge, G.R., et al. The biology and future prospects of antivirulence therapies. Nature Reviews.Microbiology 6(1), 17-27 (2008). 4.Penalver, C.G.N.,Morin, D.,Cantet, F., et al. Methylobacterium extorquens AM1 produces a novel type of acyl-homoserine lactone with a double unsaturated side chain under methylotrophic growth conditions. FEBS Letters 580, 561-567 (2006). 5.Marketon, M.,Gronquist, M.R.,Eberhard, A., et al. Characterization of the Sinorhizobium meliloti sinR/sinI locus and the production of novel N-Acyl homoserine lactones. Journal of Bacteriology 184(20), 5686-5695 (2002). 6.Pearson, J.P.,Van Delden, C., and Iglewski, B.H. Active efflux and diffusion are involved in transport of Pseudomonas aeruginosa cell-to-cell signals. Journal of Bacteriology 181(4), 1203-1210 (1999). 7.Mashburn-Warren, L., and Whiteley, M. Special delivery: Vesicle trafficking in prokaryotes. Molecular Microbiology 61(4), 839-846 (2006). | |
| 运输条件 | Room temperature in continental US; may vary elsewhere |
| 存放说明 | -20 |
| 纯度 | ≥98% |
| 计算分子量 | 367.6 |
| 分子式 | C22H41NO3 |
| CAS号 | 479050-96-9 |
| 稳定性 | ≥ 2 years |
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