نتایج جستجو برای: pka
تعداد نتایج: 9744 فیلتر نتایج به سال:
The present work reports the formation of an interstitial dislocation loop with a lower primary knock-on atom (PKA) energy in alpha-iron under strain conditions by use molecular dynamics simulation. study was conducted using PKA 1~10 keV and hydro-static from −1.4 to 1.6%. application 1.6% hydrostatic results ½<111> low 3 keV. This result associated threshold displacement decrement when m...
Abstract Background Methods to produce XOS have been intensively investigated, including enzymatic hydrolysis, steam explosion, and acid hydrolysis. Acid hydrolysis is currently the most widely used method due its advantages of fewer processing steps, stronger raw material adaptability, higher yield, better reproducibility. Especially, organic acids such as acetic acid, formic xylonic work comp...
Adipose tissue PKA has roles in adipogenesis, lipolysis, and mitochondrial function. PKA transduces the cAMP signal downstream of G protein-coupled receptors, which are being explored for therapeutic manipulation to reduce obesity and improve metabolic health. This study aimed to determine the overall physiological consequences of PKA activation in adipose tissue. Mice expressing an activated P...
Protein kinase A (PKA) is a serine/threonine kinase whose activity depends on the levels of cyclic AMP (cAMP). PKA plays essential roles in numerous cell types such as myocytes and neurons. Numerous substrate screens have been attempted to clarify the entire scope of the PKA signaling cascade, but it is still underway. Here, we performed a comprehensive screen that consisted of immunoprecipitat...
Eukaryotic cells integrate information from multiple sources to respond appropriately to changes in the environment. Here, we examined the relationship between two signaling pathways in Saccharomyces cerevisiae that are essential for the coordination of cell growth with nutrient availability. These pathways involve the cAMP-dependent protein kinase (PKA) and Tor proteins, respectively. Although...
The cAMP-dependent protein kinase A (PKA) plays a ubiquitous role in the regulation of neuronal activity, but the dynamics of its activation have been difficult to investigate. We used the genetically encoded fluorescent probe AKAR2 to record PKA activation in the cytosol and the nucleus of neurons in mouse brain slice preparations, whereas the potassium current underlying the slow afterhyperpo...
beta-Adrenergic stimulation increases stroke volume in mammalian hearts as a result of protein kinase A (PKA)-induced phosphorylation of several myocyte proteins. This study investigated whether PKA-induced phosphorylation of myofibrillar proteins directly affects myocyte contractility. To test this possibility, we compared isometric force, loaded shortening velocity, and power output in skinne...
This study examined the expression of inositol 1,4,5-trisphosphate (IP(3)) receptor (IP(3)R) types and PKG isoforms in isolated gastric smooth muscle cells and determined the ability of PKG and PKA to phosphorylate IP(3)Rs and inhibit IP(3)-dependent Ca(2+) release, which mediates the initial phase of agonist-induced contraction. PKG-Ialpha and PKG-Ibeta were expressed in gastric smooth muscle ...
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