Results 21 to 30 of about 6,958 (200)

Specificity of Signal-Binding via Non-AHL LuxR-Type Receptors. [PDF]

open access: yesPLoS ONE, 2015
Quorum sensing is a typical communication system among Gram-negative bacteria used to control group-coordinated behavior via small diffusible molecules dependent on cell number.
Sophie Brameyer, Ralf Heermann
doaj   +2 more sources

Conversion of the Vibrio fischeri Transcriptional Activator, LuxR, to a Repressor [PDF]

open access: yesJournal of Bacteriology, 2000
ABSTRACT The Vibrio fischeri luminescence ( lux ) operon is regulated by a quorum-sensing system that involves the transcriptional activator (LuxR) and an acyl-homoserine lactone signal. Transcriptional activation requires the presence of a 20-base inverted repeat termed the
K A, Egland, E P, Greenberg
openaire   +4 more sources

Bacterial LuxR solos have evolved to respond to different molecules including signals from plants [PDF]

open access: yesFrontiers in Plant Science, 2013
A future challenge will be understanding the extensive communication that most likely takes place in bacterial interspecies and interkingdom signaling between plants and bacteria.
Hitendra K. Patel   +5 more
doaj   +2 more sources

Effect of PAS-LuxR Family Regulators on the Secondary Metabolism of Streptomyces

open access: yesAntibiotics, 2022
With the development of sequencing technology and further scientific research, an increasing number of biosynthetic gene clusters associated with secondary Streptomyces metabolites have been identified and characterized.
Naifan Zhang   +3 more
doaj   +3 more sources

luxR Homolog-Linked Biosynthetic Gene Clusters in Proteobacteria

open access: yesmSystems, 2018
Microbes are a major source of antibiotics, pharmaceuticals, and other bioactive compounds. The production of many specialized microbial metabolites is encoded in biosynthetic gene clusters (BGCs). A challenge associated with natural product discovery is
Carolyn A. Brotherton   +2 more
doaj   +3 more sources

Functional Characterisation of the Quorum-Sensing Regulator ExpR<sub>Ecz</sub> in Modulation of Dickeya oryzae Motility and Virulence. [PDF]

open access: yesMol Plant Pathol
In the absence of OHHL synthase ExpIEcz, ExpREcz represses self‐expression via EDDR region and regulates Dickeya oryzae virulence traits. OHHL synthesised via ExpIEcz abolishes ExpREcz function but promotes OHHL production and D. oryzae virulence.
Liang Z   +8 more
europepmc   +2 more sources

Intragenic suppression of a mutation: Characterization of an autoinducer-independent LuxR [PDF]

open access: yesFEMS Microbiology Letters, 1995
The Vibrio fischeri luminescence genes are activated by the LuxR protein and a diffusible signal termed the autoinducer. LuxR consists of two domains, a C-terminal transcriptional activator domain, and an N-terminal autoinducer-binding domain, which serves to regulate the function of the C-terminal domain.
K A, Poellinger   +3 more
openaire   +2 more sources

Orphan LuxR regulators of quorum sensing [PDF]

open access: yesFEMS Microbiology Reviews, 2009
Bacteria can modulate their behavior by releasing and responding to the accumulation of signal molecules. This population co-ordination, referred to as quorum sensing, is prevalent in Gram-negative and Gram-positive bacteria. The essential constituents of quorum-sensing systems include a signal producer, or synthase, and a cognate transcriptional ...
Arati V, Patankar, Juan E, González
openaire   +2 more sources

Microbial Primer: LuxR-LuxI Quorum Sensing.

open access: yesMicrobiology (Reading, England), 2023
Quorum sensing is a term describing bacterial cell-to-cell communication systems for monitoring and responding to changes in population density. This primer serves as an introduction to the canonical LuxR-LuxI-type quorum sensing circuits common to many species of Gram-negative bacteria.
Soto-Aceves, Martin P.   +2 more
openaire   +3 more sources

LitR directly upregulates autoinducer synthesis and luminescence in Aliivibrio logei [PDF]

open access: yesPeerJ, 2021
LitR is a master-regulator of transcription in the ainS/R and luxS/PQ quorum sensing (QS) systems of bacteria from Vibrio and Aliivibrio genera. Here, we for the first time directly investigated the influence of LitR on gene expression in the luxI/R QS ...
Sergey Bazhenov   +7 more
doaj   +2 more sources

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