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2017 ; 8
(ä): 1123
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Deciphering Physiological Functions of AHL Quorum Quenching Acylases
#MMPMID28674525
Utari PD
; Vogel J
; Quax WJ
Front Microbiol
2017[]; 8
(ä): 1123
PMID28674525
show ga
N-Acylhomoserine lactone (AHL)-acylase (also known as amidase or amidohydrolase)
is a class of enzyme that belongs to the Ntn-hydrolase superfamily. As the name
implies, AHL-acylases are capable of hydrolysing AHLs, the most studied signaling
molecules for quorum sensing in Gram-negative bacteria. Enzymatic degradation of
AHLs can be beneficial in attenuating bacterial virulence, which can be exploited
as a novel approach to fight infection of human pathogens, phytopathogens or
aquaculture-related contaminations. Numerous acylases from both prokaryotic and
eukaryotic sources have been characterized and tested for the interference of
quorum sensing-regulated functions. The existence of AHL-acylases in a multitude
of organisms from various ecological niches, raises the question of what the
physiological roles of AHL-acylases actually are. In this review, we attempt to
bring together recent studies to extend our understanding of the biological
functions of these enzymes in nature.