Results 161 to 170 of about 9,043 (201)

Rearrangement of N-acylated homoserine lactones into tetramic acids as algicidal agents

, 2019
Backx, Simon, Stock genannt Schroer, Frederike, Graff van Creveld, Shiri, Syrpas, Michail, Blommaert, Lander, Stock, Willem, Ruysbergh, Ewout, Sabbe, Koen, De Kimpe, Norbert, Willems, Anne, Vardi, Assaf, Vyverman, Wim, Mangelinckx, Sven   +12 more
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Agrobacterium conjugation and gene regulation by N-acyl-L-homoserine lactones

Nature, 1993
Conjugal opines secreted by crown gall tumours induce strains of Agrobacterium tumefaciens that are donors of Ti plasmids to produce a diffusible conjugation factor. This enhances the conjugal transfer efficiency of the Ti plasmid in other strains of A. tumefaciens.
L, Zhang, P J, Murphy, A, Kerr, M E, Tate   +3 more
openaire   +4 more sources

N-Acyl Homoserine Lactone Mediating Initial Adhesion of Microalgal Biofilm Formation

SSRN Electronic Journal, 2023
While pioneering methods have demonstrated that bacterial N-acyl homoserine lactone (AHL) signaling molecules can influence the growth and self-aggregation of suspended microalgae, whether AHLs can affect the initial adhesion to a carrier has remained an open question.
Zixuan Ou, Xindi Chen, Xinming Wu, Changren Zhou, Kaijie Zhang, Jingyang Luo, Fang Fang, Yinqiang Sun, Ming Li, Qian Feng   +9 more
openaire   +2 more sources

Molecular mechanisms of N‐acyl homoserine lactone signals perception by plants

Cell Biology International, 2021
AbstractN‐acyl homoserine lactones (AHLs) belong to the class of bacterial quorum sensing signal molecules involved in distance signal transduction between Gram‐negative bacteria colonizers of the rhizosphere, as well as bacteria and plants. AHLs synchronize the activity of genes from individual cells, allowing the bacterial population to act as a ...
Lidia M. Babenko, Iryna V. Kosakivska, Кateryna О. Romanenko   +2 more
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Thiourea-catalyzed aminolysis of N-acyl homoserine lactones

Chemical Communications, 2013
Thiourea catalysts accelerate aminolysis of N-acyl homoserine lactones (AHLs), molecules integral to bacterial quorum sensing. The catalysts afford rate enhancement of up to 10 times the control in CD(3)CN. Mild catalysis in other polar aprotic solvents is still observed, while the activity is attenuated in polar protic solvents.
Michael A, Bertucci, Stephen J, Lee, Michel R, Gagné   +2 more
openaire   +2 more sources

Solution structural features of N -acyl homoserine lactones

Tetrahedron Letters, 2015
Here we demonstrate that in interbacterial quorum signal moderators, N-acylhomoserine lactones (AHLs), the stabilization of bioactive pharmacophore lactone against lysis is through the e(-) withdrawing N-acyl motif which reduces lactone carbonyl polarization. This lysis is assisted by weak (
Tumminakatti, Shama, Khatri, Bhavesh, Krishnamurti, Vinayak, Athavale, Vishikh, Prabhakaran, Erode N   +4 more
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Imaging N-Acyl Homoserine Lactone Quorum Sensing In Vivo

2010
In order to study N-acyl homoserine lactone (AHL)-based quorum sensing in vivo, we present a protocol using an Escherichia coli strain equipped with a luxR-based monitor system, which in the presence of exogenous AHL molecules expresses a green fluorescent protein (GFP).
Hultqvist, Louise Dahl, Alhede, Maria, Jakobsen, Tim Holm, Givskov, Michael, Bjarnsholt, Thomas   +4 more
openaire   +5 more sources

Development and characterization of rat monoclonal antibodies for N-acylated homoserine lactones

Analytical and Bioanalytical Chemistry, 2010
Quorum sensing (QS) is a communication mechanism between bacteria using diffusible chemical signaling molecules, which are called autoinducers (AI). By detecting the concentration of quorum sensing molecules through binding to a specific receptor protein, bacteria regulate their gene expressions when the concentration of autoinducers and thus the cell ...
Xiao, Chen, Elisabeth, Kremmer, Marie-Françoise, Gouzy, Ernst, Clausen, Mandy, Starke, Karin, Wöllner, Gerd, Pfister, Anton, Hartmann, Petra M, Krämer   +8 more
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QSAR MODEL OF THE QUORUM-QUENCHING N-ACYL-HOMOSERINE LACTONE LACTONASE ACTIVITY

Journal of Biological Systems, 2008
A quantitative structure-activity relationship (QSAR) study was performed to model the lactonolysis activity of N-acyl-homoserine lactone lactonase. A data set comprising of 20 homoserine lactones and related compounds was taken from the work of Wang et al. Quantum chemical descriptors were calculated using the semiempirical AM1 method.
Nantasenamat, Chanin, Piacham, Theeraphon, Tantimongcolwat, Tanawut, Naenna, Thanakorn, Isarankura-Na-Ayudhya, Chartchalerm, Prachayasittikul, Virapong   +5 more
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Selective transamidation of 3-oxo-N-acyl homoserine lactones by hydrazine derivatives

Org. Biomol. Chem., 2014
Hydrazine derivatives are employed for selective amide cleavage of 3-oxo-N-acyl homoserine lactones under physiologically relevant conditions.
Michael A, Bertucci, Stephen J, Lee, Michel R, Gagné   +2 more
openaire   +2 more sources