Characterization of isoprenaline- and salmeterol-stimulated interactions between beta2-adrenoceptors and beta-arrestin 2 using beta-galactosidase complementation in C2C12 cells.

Abstract excerpt

beta-Arrestin is an adaptor protein that has been shown to couple G protein-coupled receptors (GPCRs) to clathrin-coated pits and target them for subsequent internalization. More recently, beta-arrestin 2 has also been shown to be involved in the activation of mitogen-activated protein kinase cascades by G protein-coupled receptors independently of G protein activation. Direct interactions between proteins can be...

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