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Enzymatic Assays to Investigate Acyl-Homoserine Lactone Autoinducer Synthases

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Quorum Sensing

Part of the book series: Methods in Molecular Biology ((MIMB,volume 1673))

Abstract

Bacteria use chemical molecules called autoinducers as votes to poll their numerical strength in a colony. This polling mechanism, commonly referred to as quorum sensing, enables bacteria to build a social network and provide a collective response for fighting off common threats. In Gram-negative bacteria, AHL synthases synthesize acyl-homoserine lactone (AHL) autoinducers to turn on the expression of several virulent genes including biofilm formation, protease secretion, and toxin production. Therefore, inhibiting AHL signal synthase would limit quorum sensing and virulence. In this chapter, we describe four enzymatic methods that could be adopted to investigate a broad array of AHL synthases. The enzymatic assays described here should accelerate our mechanistic understanding of quorum-sensing signal synthesis that could pave the way for discovery of potent antivirulence compounds.

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Correspondence to Rajesh Nagarajan .

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Shin, D., Nagarajan, R. (2018). Enzymatic Assays to Investigate Acyl-Homoserine Lactone Autoinducer Synthases. In: Leoni, L., Rampioni, G. (eds) Quorum Sensing. Methods in Molecular Biology, vol 1673. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-7309-5_13

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  • DOI: https://doi.org/10.1007/978-1-4939-7309-5_13

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  • Publisher Name: Humana Press, New York, NY

  • Print ISBN: 978-1-4939-7308-8

  • Online ISBN: 978-1-4939-7309-5

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