WB, IP
H M R Hm Mk
Endogenous
80
Rabbit
#P25098
156
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
| Immunoprecipitation | 1:25 |
Storage
Specificity / Sensitivity
Species Reactivity:
Human, Mouse, Rat, Hamster, Monkey
Source / Purification
Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to the amino-terminal residues of human GRK2. Antibodies are purified by protein A and peptide affinity chromatography.
Background
G protein-coupled receptor kinase 2 (GRK2), also known as beta-adrenergic receptor kinase 1 (beta-ARK1), is a member of the GRK family, which phosphorylates the activated form of G protein-coupled receptors (GPCRs) and initiates the desensitization process of GPCR (1). GRK2 kinase activity and cellular localization are tightly regulated by interactions with activated receptors, G-beta and G-gamma subunits, adaptor proteins, phospholipids, caveolin, and calmodulin, as well as by phosphorylation (1). Protein kinase C (PKC) phosphorylation enhances GRK2 activity by promoting its membrane localization and by abolishing the inhibitory association of calmodulin (2,3). Protein kinase A (PKA) phosphorylates GRK2 at Ser685, facilitating the association of GRK2 with a beta-adrenergic receptor (4). Erk inhibits GRK2 activity via phosphorylation at Ser670 (5). Src phosphorylates GRK2 at multiple tyrosine residues (Tyr13, 86, and 92), which activates GRK2 activity and promotes GRK2 degradation (6,7).
- Pitcher, J. A. et al. (1998) Annu. Rev. Biochem. 67, 653-692.
- Winstel, R. et al. (1996) Proc. Natl. Acad. Sci. USA 93, 2105-2109.
- Krasel, C. et al. (2001) J. Biol. Chem. 276, 1911-1915.
- Cong, M. et al. (2001) J. Biol. Chem. 276, 15192-15199.
- Pitcher, J. A. et al. (1999) J. Biol. Chem. 274, 34531-34534.
- Sarnago, S. et al. (1999) J. Biol. Chem. 274, 34411-34416.
- Penela, P. et al. (2001) EMBO J. 20, 5129-5138.
Species Reactivity
Species reactivity is determined by testing in at least one approved application (e.g., western blot).
Western Blot Buffer
IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.
Applications Key
WB: Western Blotting IP: Immunoprecipitation
Cross-Reactivity Key
H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected
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