|Tested species reactivity||Human|
|Host / Isotype||Rabbit / IgG|
|Immunogen||Recombinant protein containing the carboxy-terminal region of human beta-arrestin 1.|
|Storage buffer||0.01M HEPES, pH 7.5, with 50% glycerol, 100µg/ml BSA, 0.15M NaCl|
|Tested Applications||Dilution *|
|Immunoprecipitation (IP)||Assay Dependent|
|Western Blot (WB)||Assay Dependent|
* Suggested working dilutions are given as a guide only. It is recommended that the user titrate the product for use in their own experiment using appropriate negative and positive controls.
Beta Arrestin 1 is a member of a family of proteins widely expressed but especially abundant in the central nervous system. Serving as an adaptor or scaffold maolecule, beta Arrestin 1 is essential for mitogenic signalling and mediates agonist-dependent desensitization and internalization of Gprotein-coupled receptors (GPCRs, e.g., beta 2-adrenergic receptor). After binding to their ligand and interacting with heterotrimeric G proteins, GPCRs are phosporylated by G-protein receptor kinases (GRKs) on serine residues. Beta Arrestin 1 in the cytosol is phosphorylated by ERK1 and 2 on serine412 in a negative feedback mechanism and binds to the phosphorylated receptors at the plasma membrane. Serine 412 is then dephosphorylated and the GPCRs are internalized, leading to activation of the Ras, Raf, ERK1 and 2 signaling pathway.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.