Results 221 to 230 of about 24,774 (261)
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The β-adrenergic receptor kinase in heart failure
Journal of Molecular and Cellular Cardiology, 2003Heart failure (HF) remains a significant and increasing cause of worldwide morbidity and mortality. HF is less a disease than a common clinical endpoint resulting from diverse, but often co-existing etiologies-including hypertension, coronary artery disease, and viral cardiomyopathy.
Jason A, Petrofski, Walter J, Koch
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Activation of β-Adrenergic Receptor Kinase During Myocardial Ischemia
Circulation Research, 1996During myocardial ischemia, a local release of noradrenaline coincides with an increased density of β-adrenergic receptors. The functional activity of these receptors, however, is mainly determined by their state of phosphorylation. The β-adrenergic receptor kinase (βARK) specifically phosphorylates and thereby inactivates β-adrenergic receptors after ...
M, Ungerer +4 more
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Biochemistry, 1992
Exposure of beta 2-adrenergic receptors (beta 2ARs) to agonists causes a rapid desensitization of the receptor-stimulated adenylyl cyclase response. Phosphorylation of the beta 2AR by several distinct kinases plays an important role in this desensitization phenomenon.
J, Pitcher +4 more
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Exposure of beta 2-adrenergic receptors (beta 2ARs) to agonists causes a rapid desensitization of the receptor-stimulated adenylyl cyclase response. Phosphorylation of the beta 2AR by several distinct kinases plays an important role in this desensitization phenomenon.
J, Pitcher +4 more
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Biochemistry, 1989
Previous studies have demonstrated that muscarinic cholinergic receptors (mAChR) become markedly phosphorylated when intact cardiac cells are stimulated with a muscarinic agonist. This process appears to be related to the process of receptor desensitization. However, the mechanism of agonist-induced phosphorylation of mAChR is not known.
M M, Kwatra +4 more
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Previous studies have demonstrated that muscarinic cholinergic receptors (mAChR) become markedly phosphorylated when intact cardiac cells are stimulated with a muscarinic agonist. This process appears to be related to the process of receptor desensitization. However, the mechanism of agonist-induced phosphorylation of mAChR is not known.
M M, Kwatra +4 more
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Protein kinase activity of phosphoinositide 3-kinase regulates β-adrenergic receptor endocytosis
Nature Cell Biology, 2005Phosphoinositide 3-kinase (PI(3)K) is a unique enzyme characterized by both lipid and protein kinase activities. Here, we demonstrate a requirement for the protein kinase activity of PI(3)K in agonist-dependent beta-adrenergic receptor (betaAR) internalization.
Sathyamangla V, Naga Prasad +3 more
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β-Adrenergic Receptor Kinase: Primary Structure Delineates a Multigene Family
Science, 1989The β-adrenergic receptor kinase (β-ARK), which specifically phosphorylates only the agonist-occupied form of the β-adrenergic and closely related receptors, appears to be important in mediating rapid agonist-specific (homologous) desensitization.
Benovic JL +4 more
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Light-dependent phosphorylation of rhodopsin by β-adrenergic receptor kinase
Nature, 1986The structural components involved in transduction of extracellular signals as diverse as a photon of light impinging on the retina or a hormone molecule impinging on a cell have been highly conserved. These components include a recognition unit or receptor (for example, the beta-adrenergic receptor (beta AR) for catecholamines or the 'light receptor ...
J L, Benovic +4 more
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Functional consequences of A1 adenosine-receptor phosphorylation by the β-adrenergic receptor kinase
Biochimica et Biophysica Acta (BBA) - Molecular Cell Research, 1993Treatment of smooth-muscle cells with R-phenylisopropyladenosine (R-PIA) leads to a loss of A1 adenosine receptor (A1AR)-mediated inhibition of adenylate cyclase, a decrease in receptor number and an increase in receptor phosphorylation. In this study, the role of the beta-adrenergic receptor kinase (beta ARK) in the phosphorylation and inactivation of
V, Ramkumar +4 more
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American Journal of Physiology-Heart and Circulatory Physiology, 1997
To determine the direct functional significance of the beta-adrenergic receptor (AR) kinase 1 (beta ARK1) on myocardial performance in the absence of tonic sympathoadrenal neural activation and mechanical loading, we measured the contractile responses to acute beta 1-AR stimulation in left ventricular myocytes isolated from nontransgenic control (NTG)
D H, Korzick +5 more
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To determine the direct functional significance of the beta-adrenergic receptor (AR) kinase 1 (beta ARK1) on myocardial performance in the absence of tonic sympathoadrenal neural activation and mechanical loading, we measured the contractile responses to acute beta 1-AR stimulation in left ventricular myocytes isolated from nontransgenic control (NTG)
D H, Korzick +5 more
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Comparative Analysis of β-Adrenergic Receptor Kinase and β-Arrestin mRNA Expression in Human Cells
Journal of Receptor Research, 1993Receptor phosphorylation is a key step in the process of rapid desensitization. beta-Adrenergic receptor kinase is a specific receptor kinase that is known to phosphorylate and induce desensitization of several G-coupled synaptic receptors only when they are occupied by their agonists.
Parruti G +3 more
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