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Expanding dialogues: from natural autoinducers to non-natural analogues that modulate quorum sensing in Gram-negative bacteria Geske GD; O'Neill JC; Blackwell HEChem Soc Rev 2008[Jul]; 37 (7): 1432-47Bacteria are capable of "communicating" their local population densities via a process termed quorum sensing (QS). Gram-negative bacteria use N-acylated l-homoserine lactones (AHLs), in conjunction with their cognate LuxR-type receptors, as their primary signalling circuit for QS. In this critical review, we examine AHL signalling in Gram-negative bacteria with a primary focus on the design of non-natural AHLs, their structure-activity relationships, and their application in chemical biological approaches to study QS (72 references).|*Cell Physiological Phenomena[MESH]|4-Butyrolactone/*analogs & derivatives/chemistry/metabolism[MESH]|Acylation[MESH]|Gram-Negative Bacteria/*physiology[MESH]|Ligands[MESH]|Molecular Structure[MESH]|Quorum Sensing/*physiology[MESH]|Repressor Proteins/*chemistry/metabolism[MESH]|Structure-Activity Relationship[MESH]|Trans-Activators/*chemistry/metabolism[MESH] |
