Results 21 to 30 of about 761,074 (261)

The response regulator OmpR contributes to the pathogenicity of avian pathogenic Escherichia coli

open access: yesPoultry Science, 2022
: Avian colibacillosis is a serious systemic infectious disease in poultry and caused by avian pathogenic Escherichia coli (APEC). Previous studies have shown that 2-component systems (TCSs) are involved in the pathogenicity of APEC.
Dandan Fu   +8 more
doaj   +1 more source

Insights into the Functions of a Prophage Recombination Directionality Factor

open access: yesViruses, 2012
Recombination directionality factors (RDFs), or excisionases, are essential players of prophage excisive recombination. Despite the essentially catalytic role of the integrase in both integrative and excisive recombination, RDFs are required to direct ...
Mireille Ansaldi   +3 more
doaj   +1 more source

The Divergent Key Residues of Two Agrobacterium fabrum (tumefaciens) CheY Paralogs Play a Key Role in Distinguishing Their Functions

open access: yesMicroorganisms, 2021
The chemotactic response regulator CheY, when phosphorylated by the phosphoryl group from phosphorylated CheA, can bind to the motor switch complex to control the flagellar motor rotation.
Dawei Gao   +6 more
doaj   +1 more source

The receiver domain of the Agrobacterium tumfaciens VirA histidine kinase forms a stable interaction with VirG to activate virulence gene expression

open access: yesFrontiers in Microbiology, 2016
The plant pathogen Agrobacterium tumefaciens carries a virulence gene system that is required for the initiation of crown gall tumors on susceptible plants. Expression of the vir genes is activated by the VirA/VirG two component regulatory system.
Arlene A. Wise, Andrew N Binns
doaj   +1 more source

Two-Component Signaling Regulates Osmotic Stress Adaptation via SskA and the High-Osmolarity Glycerol MAPK Pathway in the Human Pathogen Talaromyces marneffei

open access: yesmSphere, 2016
For successful infection to occur, a pathogen must be able to evade or tolerate the host’s defense systems. This requires the pathogen to first recognize the host environment and then signal this response to elicit a complex adaptive program in order to ...
Kylie J. Boyce   +2 more
doaj   +1 more source

The LytS-type histidine kinase BtsS is a 7-transmembrane receptor that binds pyruvate

open access: yesmBio, 2023
LytS/LytTR-type histidine kinase/response regulator systems regulate crucial host-specific mechanisms during infection of human or plant hosts. Escherichia coli has two of them, and the histidine kinase BtsS is a high-affinity sensor for extracellular ...
Jin Qiu   +4 more
doaj   +1 more source

Visualizing the Pre-Active Conformation of Response Regulator PhoBNF20D in Its apo State

open access: yesChinese Journal of Magnetic Resonance, 2019
PhoB is a response regulator of the PhoR/PhoB two-component system (TCS) in Escherichia Coli, which is involved in environmental phosphate regulation. PhoB activation is known to be mediated by Mg2+ coordination and phosphorylation of the conserved D53 ...
KOU Xin-hui   +5 more
doaj   +1 more source

Role Of Two-Component Signal Transduction Systems In Antimicrobial Resistance Of Gram-Negative Pathogens

open access: yesPostępy Mikrobiologii, 2020
Two-component signal transduction systems composed of histidine sensor kinase and response regulator are involved in adaptive response of pathogenic bacteria to environmental signals by regulating gene expression involved in many physiological processes,
Raczkowska Adrianna   +3 more
doaj   +1 more source

Negative regulation of Th17 responses [PDF]

open access: yesSeminars in Immunology, 2007
The discovery of the Th17 lineage of T helper cells and the realization that this subset was implicated in the pathogenesis of a variety of inflammatory conditions has lead to an intense effort devoted to identifying the cytokines and transcription factors that promote their development.
J S, Stumhofer, J, Silver, C A, Hunter
openaire   +2 more sources

Neddylation Regulation of Immune Responses

open access: yesResearch, 2023
Neddylation plays a vital role in post-translational modification, intricately shaping the regulation of diverse biological processes, including those related to cellular immune responses. In fact, neddylation exerts control over both innate and adaptive immune systems via various mechanisms.
Hongmei Mao, Xin Lin, Yi Sun
openaire   +3 more sources

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