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- W2070793709 endingPage "515" @default.
- W2070793709 startingPage "503" @default.
- W2070793709 abstract "β-Arrestins are cytosolic proteins that bind to activated and phosphorylated G-protein-coupled receptors [7MSRs (seven-membrane-spanning receptors)] and uncouple them from G-protein-mediated second messenger signalling pathways. The binding of β-arrestins to 7MSRs also leads to new signals via activation of MAPKs (mitogen-activated protein kinases) such as JNK3 (c-Jun N-terminal kinase 3), ERK1/2 (extracellular-signal-regulated kinase 1/2) and p38 MAPKs. By binding to endocytic proteins [clathrin, AP2 (adapter protein 2), NSF (N-ethylmaleimide-sensitive fusion protein) and ARF6 (ADP-ribosylation factor 6)], β-arrestins also serve as adapters to link the receptors to the cellular trafficking machinery. Agonist-promoted ubiquitination of β-arrestins is a prerequisite for their role in receptor internalization, as well as a determinant of the differing trafficking patterns of distinct classes of receptors. Recently, β-arrestins have also been implicated as playing novel roles in cellular chemotaxis and apoptosis. By virtue of their ability to bind, in a stimulus-dependent fashion, to 7MSRs as well as to different classes of cellular proteins, β-arrestins serve as versatile adapter proteins that regulate the signalling and trafficking of the receptors." @default.
- W2070793709 created "2016-06-24" @default.
- W2070793709 creator A5063246729 @default.
- W2070793709 creator A5080672788 @default.
- W2070793709 date "2003-11-01" @default.
- W2070793709 modified "2023-10-16" @default.
- W2070793709 title "Multifaceted roles of β-arrestins in the regulation of seven-membrane-spanning receptor trafficking and signalling" @default.
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