Results 181 to 190 of about 8,137 (202)

Peptide autoinducers in bacteria

Microbiology, 2009
The review classifies and analyzes the literature data on bacterial peptide autoinducers (AIs), responsible for intra- and interspecies communication (quorum sensing) between bacterial populations. The most important families of peptide AI are discussed, including a large group of bacteriocins, subdivided into lantibiotics (class I), unmodified heat ...
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Structural identification of autoinducer of Photobacterium fischeri luciferase

Biochemistry, 1981
Synthesis of bacterial luciferase in some strains of luminous bacteria requires a threshold concentration of an autoinducer synthesized by the bacteria and excreted into the medium. Autoinducer excreted by Photobacterium fischeri strain MJ-1 was isolated from the cell-free medium by extraction with ethyl acetate, evaporation of solvent, workup with ...
A, Eberhard, A L, Burlingame, C, Eberhard, G L, Kenyon, K H, Nealson, N J, Oppenheimer   +5 more
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Custom Synthesis of Autoinducers and Their Analogues

2010
Bacterial quorum sensing (QS) system is a unique target for the development of a new class of drugs that potentially control pathogenicity and attenuate virulence. Thus, it has been of significant interest to discover small organic molecules that modulate QS circuits by competing with the signaling molecules, or so-called autoinducers (AIs), for ...
Jun, Igarashi, Hiroaki, Suga
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Methods for Analysis of Bacterial Autoinducer‐2 Production

Current Protocols in Microbiology, 2011
AbstractQuorum sensing is a cell‐cell signaling process that many bacteria use to regulate gene expression as a function of the density of the population. This phenomenon involves the production, release, and response to small chemical molecules termed autoinducers.
Michiko E, Taga, Karina B, Xavier
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The Effect of Anabiosis Autoinducers on the Bacterial Genome

Microbiology, 2002
The mutagenic activity of chemical analogues of microbial anabiosis autoinducers (the autoregulatory d1 factors of cell differentiation), which act to inhibit cell proliferation, to enhance cell tolerance, and to induce the transition of cells to anabiotic state, was studied using the Ames test.
Il'inskaya O., Kolpakov A., Zelenikhin P., Kruglova Z., Choidash B., Doroshenko E., Mulyukin A., El'-Registan G.   +7 more
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Analogs of the autoinducer of bioluminescence inVibrio fischer

Archives of Microbiology, 1986
The enzymes for luminescence in Vibrio fischeri are induced only when a sufficient concentration of a metabolic product (autoinducer) specifically produced by this species accumulates. It has previously been shown that the autoinducer is 3-oxohexanoyl homoserine lactone and that it enters the cells by simple diffusion. To further study the mechanism of
A, Eberhard, C A, Widrig, P, McBath, J B, Schineller   +3 more
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Bacteroides species produce Vibrio harveyi autoinducer 2-related molecules

Anaerobe, 2005
Quorum sensing is a density-dependent gene regulation mechanism that has been described in many bacterial species in the last decades. Bacteria that use quorum sensing as part of their gene regulation circuits produce molecules called autoinducers that accumulate in the environment and activate target genes in a quorum-dependent way.
Luis Caetano Martha, Antunes, Lívia Queiroz, Ferreira, Eliane Oliveira, Ferreira, Karla Rodrigues, Miranda, Kátia Eliane Santos, Avelar, Regina Maria Cavalcanti Pilotto, Domingues, Maria Candida de Souza, Ferreira   +6 more
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Isolation of agr Quorum Sensing Autoinducers

2010
Autoregulation of genes is often associated with quorum sensing systems where bacteria produce and secrete molecules that allow the cells to communicate with one another, leading to the activation of certain genes at certain population densities. Here we describe the identification of the agr as a quorum sensing system in Staphylococcus aureus and the ...
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Involvement of ATP and autoinducer‐2 in aerobic granulation

Biotechnology and Bioengineering, 2009
AbstractAerobic granulation represents an important bacterium‐to‐bacterium self‐immobilization process that has been exploited for the treatment of a wide spectrum of wastewaters, but the mechanism behind still remains unclear in a microbiological sense.
Yanghui, Xiong, Yu, Liu
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Inherent multistability in arrays of autoinducer coupled genetic oscillators

Physical Review E, 2007
Rhythm generation mechanisms are very important for genetic network functions as well as for the design of synthetic genetic circuits. A significant attention to date has been focused on the synchronization of communicating genetic units, which results in the production of an unified rhythm.
A, Koseska, E, Volkov, A, Zaikin, J, Kurths   +3 more
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