Results 21 to 30 of about 407,697 (279)

Expression Analysis of the Pseudomonas aeruginosa AlgZR Two-Component Regulatory System [PDF]

open access: yesJournal of Bacteriology, 2015
ABSTRACT Pseudomonas aeruginosa virulence components are subject to complex regulatory control primarily through two-component regulatory systems that allow for sensing and responding to environmental stimuli. In this study, the expression and regulation of the P. aeruginosa AlgZR two-component
Pritchett, Christopher L.   +6 more
openaire   +5 more sources

Feedback Control of Two-Component Regulatory Systems. [PDF]

open access: yesAnnu Rev Microbiol, 2016
Two-component systems are a dominant form of bacterial signal transduction. The prototypical two-component system consists of a sensor that responds to a specific input(s) by modifying the output of a cognate regulator. Because the output of a two-component system is the amount of phosphorylated regulator, feedback mechanisms may alter the amount of ...
Groisman EA.
europepmc   +4 more sources

Sensor domains of two-component regulatory systems. [PDF]

open access: yesCurr Opin Microbiol, 2010
Two-component systems regulate crucial cellular processes in microorganisms, and each comprises a homodimeric histidine kinase receptor and a cytoplasmic response regulator. Histidine kinases, often membrane associated, detect environmental input at sensor domains and propagate resulting signals to catalytic cytoplasmic transmitter domains.
Cheung J, Hendrickson WA.
europepmc   +4 more sources

Signal integration in bacterial two-component regulatory systems. [PDF]

open access: yesGenes Dev, 2008
Two-component systems (TCSs) and phosphorelays are key mediators of bacterial signal transduction. The signals activating these systems promote the phosphorylated state of a response regulator, which is generally the form that carries out specific functions such as binding to DNA and catalysis of biochemical reactions.
Mitrophanov AY, Groisman EA.
europepmc   +4 more sources

Evolution towards Virulence in a Burkholderia Two-Component System

open access: yesmBio, 2021
Bacteria in the Burkholderia cepacia complex (BCC) are significant pathogens for people with cystic fibrosis (CF) and are often extensively antibiotic resistant.
Matthew M. Schaefers   +8 more
doaj   +1 more source

GraS signaling in Staphylococcus aureus is regulated by a single D35 residue in the extracellular loop

open access: yesMicrobiology Spectrum, 2023
Bacterial two-component systems are crucial features of bacterial pathogens such as methicillin-resistant Staphylococcus aureus to overcome environmental and antimicrobial stresses by activating regulons to interfere with the bactericidal mechanisms ...
Junho Cho   +3 more
doaj   +1 more source

Conserved metabolic regulator ArcA responds to oxygen availability, iron limitation, and cell envelope perturbations during bacteremia

open access: yesmBio, 2023
Gram-negative facultative anaerobes often cause bacteremia, a systemic infection associated with severe clinical outcomes. ArcAB, a two-component regulatory system that represses aerobic respiration, is a key mediator of metabolic adaptation for such ...
Aric N. Brown   +4 more
doaj   +1 more source

The Role and Regulatory Network of the CiaRH Two-Component System in Streptococcal Species [PDF]

open access: yesFrontiers in Microbiology, 2021
Pathogenic streptococcal species are responsible for a broad spectrum of human diseases ranging from non-invasive and localized infections to more aggressive and life-threatening diseases, which cause great economic losses worldwide. Streptococci possess a dozen two-component systems (TCSs) that play important roles in the response to different ...
Li-Yuan He   +4 more
openaire   +3 more sources

The Two-Component System CopRS Maintains Subfemtomolar Levels of Free Copper in the Periplasm of Pseudomonas aeruginosa Using a Phosphatase-Based Mechanism

open access: yesmSphere, 2020
Two-component systems control periplasmic Cu+ homeostasis in Gram-negative bacteria. In characterized systems such as Escherichia coli CusRS, upon Cu+ binding to the periplasmic sensing region of CusS, a cytoplasmic phosphotransfer domain of the sensor ...
Lorena Novoa-Aponte   +3 more
doaj   +1 more source

Phosphate sink containing two-component signaling systems as tunable threshold devices [PDF]

open access: yes, 2014
Synthetic biology aims to design de novo biological systems and reengineer existing ones. These efforts have mostly focused on transcriptional circuits, with reengineering of signaling circuits hampered by limited understanding of their systems dynamics ...
Elisenda Feliu (481165)   +21 more
core   +1 more source

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