Results 21 to 30 of about 89,923 (320)
Inhibition of beta-adrenergic receptor kinase prevents rapid homologous desensitization of beta 2-adrenergic receptors. [PDF]
Homologous (agonist-specific) desensitization of beta-adrenergic receptors (beta ARs) is accompanied by and appears to require phosphorylation of the receptors. We have recently described a novel protein kinase, beta AR kinase, which phosphorylates beta ARs in vitro in an agonist-dependent manner.
M. Lohse+3 more
semanticscholar +4 more sources
Mechanism of beta-adrenergic receptor kinase activation by G proteins
The beta-adrenergic receptor kinase (beta-ARK) specifically phosphorylates the activated form of various G protein-coupled receptors such as the beta 2-adrenergic receptor (beta 2-AR). Recently, G protein beta gamma subunits have been demonstrated to activate beta-ARK-mediated receptor phosphorylation.
C.M. Kim, Sarah Dion, Jeffrey Benovic
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Desensitization of the beta-adrenergic receptor, a receptor which is coupled to the stimulation of adenylate cyclase, may be regulated via phosphorylation by a unique protein kinase. This recently discovered enzyme, known as the beta-adrenergic receptor kinase, only phosphorylates the agonist-occupied form of the beta-adrenergic receptor.
J.L. Benovic+7 more
openalex +4 more sources
Expression of beta-arrestins and beta-adrenergic receptor kinases in the failing human heart. [PDF]
The beta-adrenergic receptor system of the failing human heart is markedly desensitized. We have recently postulated that this desensitization may in part be caused by an increase in beta-adrenergic receptor kinase (beta ARK) expression. beta ARK is thought to effect desensitization by acting in concert with an inhibitor protein, called beta-arrestin ...
Martin Ungerer+6 more
openalex +6 more sources
Association of the regulatory beta-adrenergic receptor kinase with rat liver microsomal membranes.
beta-Adrenergic receptor kinase (beta ARK) is a regulatory enzyme involved in the modulation of beta-adrenergic and other G protein-coupled receptors. It has been described that beta ARK is a cytosolic protein that transiently translocates to the plasma membrane in order to specifically phosphorylate agonist-occupied receptors.
Irene García-Higuera+6 more
openalex +4 more sources
Specific enhancement of beta-adrenergic receptor kinase activity by defined G-protein beta and gamma subunits. [PDF]
Sabine Müller+2 more
openalex +2 more sources
The objective was to determine whether recombinant bovine somatotropin (rbST) enhanced live performance,skeletal muscle biological activity, and beta-adrenergic receptor expression of feedlot heifers during the finishing phase.
Alex Thompson+8 more
doaj +2 more sources
BackgroundLeft ventricular (LV) remodeling consists in maladaptive changes in cardiac geometry and function following an insult such as ST-segment elevation myocardial infarction (STEMI).
Oriol Iborra-Egea+15 more
doaj +1 more source
Rapid agonist‐induced beta‐adrenergic receptor kinase translocation in C6 glioma cells [PDF]
Exposure of C6 glioma cells to 1 μM isoproterenol leads to fast desensitization of the β‐adrenergic receptor/adenylyl cyclase system and transient receptor sequestration. It also triggers a very rapid and transient translocation to the plasma membrane or β‐adrenergic receptor kinase (βARK), a specific cytoplasmic kinase that phosphorylates only the ...
Irene García-Higuera, Federico Mayor
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Activation by G protein beta gamma subunits of beta-adrenergic and muscarinic receptor kinase. [PDF]
We have shown previously that GTP-binding regulatory protein (G protein) beta gamma subunits stimulate the agonist- or light-dependent phosphorylation of muscarinic acetylcholine receptors (mAChRs) and rhodopsin by a protein kinase partially purified from porcine brain (mAChR kinase) but not the phosphorylation of rhodopsin by rhodopsin kinase (Haga, K.
Kimihiko Kameyama+5 more
openalex +3 more sources