GRK2 Antibody – Rabbit Polyclonal

This gene encodes a member of the G protein-coupled receptor kinase family of proteins. The encoded protein phosphorylates the beta-adrenergic receptor as well as a wide range of other substrates including non-GPCR cell surface receptors, and cytoskeletal, mitochondrial, and transcription factor proteins. Data from rodent models supports a role for this gene in embryonic development, heart function and metabolism. Elevated expression of this gene has been observed in human patients with heart failure and Alzheimer's disease. [provided by RefSeq, Sep 2017]

GRK2: a ubiquitous protein kinase of the GRK family. Phosphorylates the beta-2-adrenergic receptor and related G-protein-coupled receptors. Appears to mediate agonist-specific desensitization observed at high agonist concentrations. Expression level is consistently elevated in chronic human heart failure. Mouse models of severe heart failure have been used to demonstrate that inhibition of BARK1 with a peptide inhibitor is sufficient to increase mean survival, reduce dialation and improve cardiac function.

Protein type: Protein kinase, AGC; Protein kinase, Ser/Thr (non-receptor); Kinase, protein; EC 2.7.11.15; AGC group; GRK family; BARK subfamily

Chromosomal Location of Human Ortholog: 11q13.1

Cellular Component: membrane; cytoplasm; plasma membrane; cytosol

Molecular Function: G-protein coupled receptor kinase activity; protein binding; Edg-2 lysophosphatidic acid receptor binding; beta-adrenergic receptor kinase activity; alpha-2A adrenergic receptor binding; ATP binding; protein kinase activity

Biological Process: epidermal growth factor receptor signaling pathway; desensitization of G-protein coupled receptor protein signaling pathway; tachykinin signaling pathway; acetylcholine receptor signaling, muscarinic pathway; fibroblast growth factor receptor signaling pathway; nerve growth factor receptor signaling pathway; heart development; peptidyl-threonine phosphorylation; signal transduction; negative regulation of striated muscle contraction; peptidyl-serine phosphorylation; negative regulation of the force of heart contraction by chemical signal; phospholipase C activation; receptor internalization; positive regulation of catecholamine secretion; innate immune response; cardiac muscle contraction