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{beta}-Arrestin and Mdm2, Unsuspected Partners in Signaling from the Cell Surface

Mdm2 is a ubiquitin-protein ligase known to ubiquitinate p53, promoting its degradation by the ubiquitin-proteasome system. Shenoy and co-workers showed that Mdm2 can act as a key factor in the sequestration of the cell surface β2-adrenergic receptor (β-AR) through interactions with β-arrestin. Strous and Schantl discuss how Mdm2 may be a switch connecting extracellular signals mediated through G protein-coupled receptors (GPCRs) to p53 and its functions in apoptosis and cell cycle progression.

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Resource Type: Diagram, Illustration, Journal article/Issue, Review
Audience Level: Undergraduate upper division 15-16, Graduate, Professional (degree program)

Author and Copyright

Authors and Editors: Ger J. Strous of Department of Cell Biology, University Medical Center Utrecht, Julia A. Schantl of Department of Cell Biology, University Medical Center Utrecht
Publisher: American Association for the Advancement of Science
Format: application/pdf, image/gif, image/jpeg, text/html
Copyright and other restrictions: Yes
Cost: Yes


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