Results 11 to 20 of about 14,518 (211)

The Autoinducer-2 Exporter Superfamily [PDF]

Microbial Physiology, 2010
The TqsA (YdgG) protein of <i>Escherichia coli</i> has been shown to export the autoinducer-2 (AI-2) molecule, a furanosyl borate diester that bears little resemblance to previously characterized biological molecules. TqsA belongs to a large superfamily, the AI-2 exporter (AI-2E) superfamily, of putative transporters with no other ...
Rettner, Rachael E, Saier, Milton H
openaire   +4 more sources

Quinolones: from antibiotics to autoinducers [PDF]

FEMS Microbiology Reviews, 2011
Since quinine was first isolated, animals, plants and microorganisms producing a wide variety of quinolone compounds have been discovered, several of which possess medicinally interesting properties ranging from antiallergenic and anticancer to antimicrobial activities.
Heeb S, Fletcher MP, Chhabra SR, Diggle SP, Williams P, Cámara M   +5 more
openaire   +2 more sources

Cheminformatics Bioprospection of Sunflower Seeds’ Oils against Quorum Sensing System of Pseudomonas aeruginosa

Antibiotics, 2023
Clinically significant pathogens such as Pseudomonas aeruginosa evade the effects of antibiotics using quorum sensing (QS) systems, making antimicrobial resistance (AMR) a persistent and potentially fatal global health issue.
Nosipho Wendy S’thebe, Jamiu Olaseni Aribisala, Saheed Sabiu   +2 more
doaj   +1 more source

Quorum sensing in Vibrio fischeri: probing autoinducer-LuxR interactions with autoinducer analogs [PDF]

Journal of Bacteriology, 1996
The Vibrio fischeri luminescence genes are activated by the transcription factor LuxR in combination with a diffusible signal compound, N-(3-oxohexanoyl) homoserine lactone, termed the autoinducer. We have synthesized a set of autoinducer analogs. Many analogs with alterations in the acyl side chain showed evidence of binding to LuxR.
A L, Schaefer, B L, Hanzelka, A, Eberhard, E P, Greenberg   +3 more
openaire   +2 more sources

Saffron Alters Microbial Amino Acid Metabolism and Neurotransmitter Production in a Defined Gut Consortium. [PDF]

Food Sci Nutr
Graphical representation of the metabolic pathways modulated by saffron within defined microbial communities. In the tryptophan pathway, saffron decreased levels of tryptophan and anthranilic acid while increasing concentrations of indole‐3‐acetic acid and tryptamine.
Horvath AE, Grozis M, Baker PRS, Gorti SKK, Proos R, Imran A, Brim H, Horvath TD, Engevik MA, Ashktorab H.   +9 more
europepmc   +2 more sources

Salmonella enterica Optimizes Metabolism After Addition of Acyl-Homoserine Lactone Under Anaerobic Conditions

Frontiers in Microbiology, 2020
Acyl-homoserine lactones (AHLs) are quorum sensing (QS) signaling molecules that mediate cell-to-cell communication in Gram-negative bacteria. Salmonella does not produce AHL, however, it can recognize AHLs produced by other species through SdiA protein ...
Deisy G. Carneiro, Felipe A. Almeida, Ananda P. Aguilar, Nívea M. Vieira, Uelinton M. Pinto, Tiago A. O. Mendes, Maria Cristina D. Vanetti   +6 more
doaj   +1 more source

Anti-Quorum-Sensing Potential of Ethanolic Extracts of Aromatic Plants from the Flora of Cyprus

Plants, 2022
Quorum sensing (QS) is a form of intra- and inter-species communication system employed by bacteria to regulate their collective behavior in a cell population-dependent manner. QS has been implicated in the virulence of several pathogenic bacteria.
Tolis Panayi, Yiannis Sarigiannis, Elena Mourelatou, Evroula Hapeshis, Christos Papaneophytou   +4 more
doaj   +1 more source

Core Principles of Bacterial Autoinducer Systems [PDF]

Microbiology and Molecular Biology Reviews, 2015
SUMMARY Autoinduction (AI), the response to self-produced chemical signals, is widespread in the bacterial world. This process controls vastly different target functions, such as luminescence, nutrient acquisition, and biofilm formation, in different ways and integrates additional environmental and physiological cues.
Burkhard A. Hense, Martin Schuster
openaire   +3 more sources

Caenorhabditis elegans Senses Bacterial Autoinducers [PDF]

Applied and Environmental Microbiology, 2006
ABSTRACT Pseudomonas aeruginosa uses virulence factors controlled by quorum sensing (QS) to kill Caenorhabditis elegans . Here we show that C.
Elmus, Beale, Guigen, Li, Man-Wah, Tan, Kendra P, Rumbaugh   +3 more
openaire   +2 more sources

Sinorhizobium Meliloti, A Bacterium Lacking The Autoinducer-2 (AI-2) Synthase, Responds To AI-2 Supplied By Other Bacteria [PDF]

, 2008
Many bacterial species respond to the quorum-sensing signal autoinducer-2 (AI-2) by regulating different niche-specific genes. Here, we show that Sinorhizobium meliloti, a plant symbiont lacking the gene for the AI-2 synthase, while not capable of ...
McAuley, J. R., Miller, Stephen T., Pereira, C. S., Taga, M. E., Xavier, K. B.   +4 more
core   +2 more sources