Results 51 to 60 of about 115,119 (230)

The Zinc Finger Transcription Factor Fts2 Represses the Yeast-to-Filament Transition in the Dimorphic Yeast Yarrowia lipolytica

open access: yesmSphere, 2022
The yeast-to-filament transition is an important cellular response to environmental stimulations in dimorphic fungi. In addition to activators, there are repressors in the cells to prevent filament formation, which is important to keep the cells in the ...
Jia-Wen Chen   +3 more
doaj   +1 more source

Non-canonical LexA proteins regulate the SOS response in the Bacteroidetes

open access: yesNucleic Acids Research, 2021
Lesions to DNA compromise chromosome integrity, posing a direct threat to cell survival. The bacterial SOS response is a widespread transcriptional regulatory mechanism to address DNA damage.
Miquel Sánchez-Osuna   +5 more
semanticscholar   +1 more source

Reductions in bacterial viability stimulate the production of Extra-intestinal Pathogenic Escherichia coli (ExPEC) cytoplasm-carrying Extracellular Vesicles (EVs).

open access: yesPLoS Pathogens, 2022
Extra-intestinal Pathogenic Escherichia coli (ExPEC) is defined as an extra-intestinal foodborne pathogen, and several dominant sequence types (STs) ExPEC isolates are highly virulent, with zoonotic potential.
Min Jiang   +8 more
doaj   +1 more source

A 5-Enolpyruvylshikimate 3-Phosphate Synthase Functions as a Transcriptional Repressor in Populus. [PDF]

open access: yes, 2018
Long-lived perennial plants, with distinctive habits of inter-annual growth, defense, and physiology, are of great economic and ecological importance.
Barros-Rios, Jaime   +28 more
core   +1 more source

DNA cytosine methylation at the lexA promoter of Escherichia coli is stationary phase specific

open access: yesG3, 2021
The bacterial DNA damage response pathway (SOS response) is composed of a network of genes regulated by a single transcriptional repressor, LexA. The lexA promoter, itself, contains two LexA operators, enabling negative feedback. In Escherichia coli, the
E. B. Lewis, E. Chen, M. Culyba
semanticscholar   +1 more source

The Verrucomicrobia LexA-binding Motif: Insights into the Evolutionary Dynamics of the SOS Response

open access: yesFrontiers in Molecular Biosciences, 2016
The SOS response is the primary bacterial mechanism to address DNA damage, coordinating multiple cellular processes that include DNA repair, cell division and translesion synthesis.
Ivan Erill   +3 more
doaj   +1 more source

Bacteriostatic and Bactericidal Mechanism of Novel Compound Isolated from Ethyl Acetate Stem Bark Extract of Spondias mombin Using Biomarker Repressor LexA gene on Escherichia coli and Bacillus subtilis

open access: yes, 2018
The purpose of the research work is to determine the mechanism of action of novel compound (A1Epigallocatechin, Epicatechin and Stigmasterol Phytosterol (Synergy)), (A3-Aspidofractinine-3-methanol) and (F3Terephthalic acid, dodecyl 2-ethylhexyl ester ...
Dr Oludare temitope Osuntokun   +1 more
semanticscholar   +1 more source

RecA and Specialized Error-Prone DNA Polymerases Are Not Required for Mutagenesis and Antibiotic Resistance Induced by Fluoroquinolones in Pseudomonas aeruginosa

open access: yesAntibiotics, 2022
To cope with stressful conditions, including antibiotic exposure, bacteria activate the SOS response, a pathway that induces error-prone DNA repair and mutagenesis mechanisms.
Jessica Mercolino   +4 more
doaj   +1 more source

The influence of the accessory genome on bacterial pathogen evolution [PDF]

open access: yes, 2011
Bacterial pathogens exhibit significant variation in their genomic content of virulence factors. This reflects the abundance of strategies pathogens evolved to infect host organisms by suppressing host immunity.
Abu-Ali GS   +120 more
core   +2 more sources

Amino acid diversity in LexA repressor sequence among ESKAPE pathogens

open access: bronzeProceedings for Annual Meeting of The Japanese Pharmacological Society, 2018
Rio Risandiansyah
openalex   +3 more sources

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