GRK5 Antibody

Cusabio

GRK5 Antibody

20

Western Blot, ELISA

Research Use Only

Polyclonal

Unconjugated

GRK5

G protein-coupled receptor kinase 5

FP2025; G protein-coupled receptor kinase 5; g protein-coupled receptor kinase GRK5; GPRK5

Rabbit

IgG

G protein-coupled receptor kinase 5

Serine/threonine kinase that phosphorylates preferentially the activated forms of a variety of G-protein-coupled receptors (GPCRs). Such receptor phosphorylation initiates beta-arrestin-mediated receptor desensitization, internalization, and signaling events leading to their down-regulation. Phosphorylates a variety of GPCRs, including adrenergic receptors, muscarinic acetylcholine receptors (more specifically Gi-coupled M2/M4 subtypes), dopamine receptors and opioid receptors. In addition to GPCRs, also phosphorylates various substrates: Hsc70-interacting protein/ST13, TP53/p53, HDAC5, and arrestin-1/ARRB1. Phosphorylation of ARRB1 by GRK5 inhibits G-protein independent MAPK1/MAPK3 signaling downstream of 5HT4-receptors. Phosphorylation of HDAC5, a repressor of myocyte enhancer factor 2 (MEF2) leading to nuclear export of HDAC5 and allowing MEF2-mediated transcription. Phosphorylation of TP53/p53, a crucial tumor suppressor, inhibits TP53/p53-mediated apoptosis. Phosphorylation of ST13 regulates internalization of the chemokine receptor. Phosphorylates rhodopsin (RHO) (in vitro) and a non G-protein-coupled receptor, LRP6 during Wnt signaling (in vitro). Kunapuli P., Proc. Natl. Acad. Sci. U.S.A. 90:5588-5592(1993). The MGC Project Team, Genome Res. 14:2121-2127(2004).

Human, Mouse, Rat

-20°C or -80°C

12352203