Results 11 to 20 of about 6,139 (211)

High yield expression of an AHL-lactonase from Bacillus sp. B546 in Pichia pastoris and its application to reduce Aeromonas hydrophila mortality in aquaculture [PDF]

open access: yesMicrobial Cell Factories, 2010
Background Aeromonas hydrophila is a serious pathogen and can cause hemorrhagic septicemia in fish. To control this disease, antibiotics and chemicals are widely used which can consequently result in "superbugs" and chemical accumulation in the food ...
Bai Yingguo   +4 more
doaj   +4 more sources

DJ-1 interacts with and regulates paraoxonase-2, an enzyme critical for neuronal survival in response to oxidative stress. [PDF]

open access: yes, 2014
Loss-of-function mutations in DJ-1 (PARK7) gene account for about 1% of all familial Parkinson's disease (PD). While its physiological function(s) are not completely clear, DJ-1 protects neurons against oxidative stress in both in vitro and in vivo ...
Aleyasin, Hossein   +15 more
core   +6 more sources

Quorum-quenching activity of the AHL-lactonase from Bacillus licheniformis DAHB1 inhibits vibrio biofilm formation in vitro and reduces shrimp intestinal colonisation and mortality [PDF]

open access: yes, 2014
Vibrio parahaemolyticus is a significant cause of gastroenteritis resulting from the consumption of undercooked sea foods and often cause significant infections in shrimp aquaculture. Vibrio virulence is associated with biofilm formation and is regulated
Shanthi, S.   +4 more
core   +3 more sources

Evaluation of a new high-throughput method for identifying quorum quenching bacteria [PDF]

open access: yes, 2013
Quorum sensing (QS) is a population-dependent mechanism for bacteria to synchronize social behaviors such as secretion of virulence factors. The enzymatic interruption of QS, termed quorum quenching (QQ), has been suggested as a promising alternative ...
Bossier, Peter   +6 more
core   +2 more sources

Strategies to prevent the occurrence of resistance against antibiotics by using advanced materials [PDF]

open access: yes, 2018
This is a post-peer-review, pre-copyedit version of an article published in Applied microbiology and biotechnology The final authenticated version is available online at: http://dx.doi.org/10.1007/s00253-018-8776-0Drug resistance occurrence is a global ...
Bassegoda Puigdomenech, Arnau   +3 more
core   +2 more sources

Origin, Diversity, and Multiple Roles of Enzymes with Metallo-β-Lactamase Fold from Different Organisms

open access: yesCells, 2023
β-lactamase enzymes have generated significant interest due to their ability to confer resistance to the most commonly used family of antibiotics in human medicine.
Seydina M. Diene   +8 more
doaj   +1 more source

Specificity and Enzyme Kinetics of the Quorum-quenching N-Acyl Homoserine Lactone Lactonase (AHL-lactonase) [PDF]

open access: yesJournal of Biological Chemistry, 2004
N-Acyl homoserine lactone (AHL) quorum-sensing signals are the vital elements of bacterial quorum-sensing systems, which regulate diverse biological functions, including virulence. The AHL-lactonase, a quorumquenching enzyme encoded by aiiA from Bacillus sp., inactivates AHLs by hydrolyzing the lactone bond to produce corresponding N-acyl homoserines ...
Wang, L.-H.   +3 more
openaire   +2 more sources

Signal Disruption Leads to Changes in Bacterial Community Population

open access: yesFrontiers in Microbiology, 2019
The disruption of bacterial signaling (quorum quenching) has been proven to be an innovative approach to influence the behavior of bacteria. In particular, lactonase enzymes that are capable of hydrolyzing the N-acyl homoserine lactone (AHL) molecules ...
Michael Schwab   +15 more
doaj   +1 more source

The Structure and Function of Paraoxonase-1 and Its Comparison to Paraoxonase-2 and -3

open access: yesMolecules, 2020
Serum paraoxonase-1 (PON1) is the most studied member of the group of paraoxonases (PONs). This enzyme possesses three enzymatic activities: lactonase, arylesterase, and paraoxonase activity.
Ajda Taler-Verčič   +2 more
doaj   +1 more source

Field testing of an enzymatic quorum quencher coating additive to reduce biocorrosion of steel

open access: yesMicrobiology Spectrum, 2023
Microbial colonization can be detrimental to the integrity of metal surfaces and lead to microbiologically influenced corrosion. Biocorrosion is a serious problem for aquatic and marine industries in the world and severely affects the maritime ...
Siqian Huang   +4 more
doaj   +1 more source

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