Abstract
N-acyl-l-homoserine lactone (AHL) acylases are a well-known group of enzymes that disrupt quorum sensing in Gram-negative bacteria by degrading AHL signalling molecules. This degradation of signalling molecules (termed 'quorum quenching') has potential uses in the prevention or reduction of biofilm formation and/or bacterial infections. Therefore, there is a great deal of interest in the identification and characterisation of quorum quenching enzymes. Here, we present an optimised fluorescamine-based assay for the detection of AHL acylase activity and demonstrate it can be used in a high-throughput screening format.
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