Results 71 to 80 of about 9,038 (230)

Expression of Canonical SOS Genes Is Not under LexA Repression in Bdellovibrio bacteriovorus [PDF]

open access: yes, 2005
The here-reported identification of the LexA-binding sequence of Bdellovibrio bacteriovorus, a bacterial predator belonging to the δ-Proteobacteria, has made possible a detailed study of its LexA regulatory network. Surprisingly, only the lexA gene and a
Campoy, Susana   +4 more
core   +1 more source

TCP3‐mediated regulation of cell expansion in Arabidopsis thaliana

open access: yesNew Phytologist, Volume 248, Issue 6, Page 2981-2995, December 2025.
Summary Cell expansion is crucial for organ morphogenesis in multicellular organisms. Apoplast acidification triggers plant cell expansion. Plant hormones and transcription factors such as TEOSINTE BRANCHED, CYCLOIDEA, and PROLIFERATING CELL NUCLEAR ANTIGEN BINDING FACTORs (TCPs) control cell expansion.
Tomotsugu Koyama   +12 more
wiley   +1 more source

Evaluation of phylogenetic footprint discovery for predicting bacterial cis-regulatory elements and revealing their evolution

open access: yesBMC Bioinformatics, 2008
Background The detection of conserved motifs in promoters of orthologous genes (phylogenetic footprints) has become a common strategy to predict cis-acting regulatory elements.
van Helden Jacques, Janky Rekin's
doaj   +1 more source

Gene expression noise in a complex artificial toxin expression system.

open access: yesPLoS ONE, 2020
Gene expression is an intrinsically stochastic process. Fluctuations in transcription and translation lead to cell-to-cell variations in mRNA and protein levels affecting cellular function and cell fate. Here, using fluorescence time-lapse microscopy, we
Alexandra Goetz   +4 more
doaj   +1 more source

Bayesian joint modeling of multiple gene networks and diverse genomic data to identify target genes of a transcription factor

open access: yes, 2012
We consider integrative modeling of multiple gene networks and diverse genomic data, including protein-DNA binding, gene expression and DNA sequence data, to accurately identify the regulatory target genes of a transcription factor (TF).
Pan, Wei, Wei, Peng
core   +1 more source

Negative feedback control of jasmonate signaling by an alternative splice variant of JAZ10 [PDF]

open access: yes, 2013
The plant hormone jasmonate (JA) activates gene expression by promoting ubiquitin-dependent degradation of JAZ transcriptional repressor proteins. A key feature of all JAZ proteins is the highly conserved Jas motif, which mediates both JAZ degradation ...
Campos, Marcelo L.   +7 more
core   +1 more source

Antibiotic Resistance: A Genetic and Physiological Perspective

open access: yesMedComm, Volume 6, Issue 11, November 2025.
The development of resistance to antimicrobials and their historical progression are depicted in this graphic. It draws attention to important biochemical, physiological, and genetic factors that contribute to AMR, such as the transmission of genes, the development of biofilms, and the inactivation of antibiotics.
Rania G. Elbaiomy   +9 more
wiley   +1 more source

Nucleotide sequence and mutational analysis of an immunity repressor gene from Bacillus subtilis temperate phage ϕ105 [PDF]

open access: yes, 1985
We have identified and sequenced a bacteriophage phi 105 gene encoding an immunity repressor, the first to be characterized from a temperate phage infecting a Gram-positive host.
De Smet, Bea   +3 more
core   +2 more sources

Antibiotic Persister Cells in Acinetobacter baumannii: Overview of Molecular Mechanisms and Removal Strategies

open access: yesEnvironmental Microbiology, Volume 27, Issue 11, November 2025.
Antibiotic persister cells in Acinetobacter baumannii: review of the molecular mechanisms involved in this physiology, such as toxin/antitoxin, second messengers, SOS response, PAA or membranes; and elimination strategies such as antibiotics or phages.
Delphine Vergoz   +3 more
wiley   +1 more source

Regulation of the SOS response in Bacillus subtilis: evidence for a LexA repressor homolog [PDF]

open access: yesJournal of Bacteriology, 1991
The inducible SOS response for DNA repair and mutagenesis in the bacterium Bacillus subtilis resembles the extensively characterized SOS system of Escherichia coli. In this report, we demonstrate that the cellular repressor of the E. coli SOS system, the LexA protein, is specifically cleaved in B.
M F, Wojciechowski   +2 more
openaire   +2 more sources

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