Store vial at -20° C prior to opening. Aliquot contents and freeze at -20° C or below for extended storage. Avoid cycles of freezing and thawing. Centrifuge product if not completely clear after standing at room temperature. This product is stable for several weeks at 4° C as an undiluted liquid. Dilute only prior to immediate use.
This affinity purified antibody is directed against human GRK2. A BLAST analysis of the sequence shows 100% reactivity to human, and 90% to rat, mouse, and golden hamster.
G protein-coupled receptor kinases (GRKs) are important regulators of G protein-coupled receptors(GPCRs). GRK2 (83 kDa), one of six members of this family that have been identified, is ubiquitously expressed in mammals. After binding to their ligand and interacting with heterotrimeric G proteins, GPCRs (e.g., a2-adrenergic receptor) are phosphorylated by GRKs. Internalization of the GPCRs, regulated by beta-arrestin-1, leads to activation of the Ras - Raf - ERK1 and 2 signaling pathway. GRK2 activity is tightly controlled by different mechanisms including phosphorylation by kinases such as PKC, Src and ERK1 and 2, as well as interaction with various proteins. ERK phosphorylates and thus inactivates GRK2 on serine 670 in a negative feedback mechanism.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: adrenergic beta receptor kinase 1; adrenergic, beta, receptor kinase 1; Beta-adrenergic receptor kinase 1; beta-AR kinase-1; Beta-ARK-1; EC 126.96.36.199; G-protein coupled receptor kinase 2; G-protein-coupled receptor kinase 2; grk 2
Gene Aliases: Adrbk-1; ADRBK1; BARK; Bark-1; BARK1; beta ARK; BETA-ARK1; betaARK1; GRK2