SUMO-1 controls the protein stability and the biological function of phosducin.

Abstract excerpt

Phosducin regulates Gbetagamma-stimulated signaling by binding to Gbetagamma subunits of heterotrimeric G-proteins. Control of phosducin activity by phosphorylation is well established. However, little is known about other mechanisms that may control phosducin activity. Here we report that phosducin is regulated at the posttranslational level by modification with the small ubiquitin-related modifier, SUMO. We...

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