Beta Arrestin 2 (ARRB2) Antibody – Rabbit Polyclonal

Members of arrestin/beta-arrestin protein family are thought to participate in agonist-mediated desensitization of G-protein-coupled receptors and cause specific dampening of cellular responses to stimuli such as hormones, neurotransmitters, or sensory signals. Arrestin beta 2, like arrestin beta 1, was shown to inhibit beta-adrenergic receptor function in vitro. It is expressed at high levels in the central nervous system and may play a role in the regulation of synaptic receptors. Besides the brain, a cDNA for arrestin beta 2 was isolated from thyroid gland, and thus it may also be involved in hormone-specific desensitization of TSH receptors. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2012]

ARRB2: a member of the arrestin/beta-arrestin protein family. These proteins participate in agonist-mediated desensitization of G-protein-coupled receptors. Acts as a cofactor in the beta-adrenergic receptor kinase (BARK) mediated desensitization of beta-adrenergic receptors. Expressed at high levels in the CNS and peripheral blood leukocytes.

Protein type: Adaptor/scaffold

Chromosomal Location of Human Ortholog: 17p13

Cellular Component: basolateral plasma membrane; coated pit; cytoplasm; cytoplasmic vesicle; cytosol; dendritic spine; endocytic vesicle; nucleus; plasma membrane; postsynaptic density; postsynaptic membrane

Molecular Function: alpha-1A adrenergic receptor binding; alpha-1B adrenergic receptor binding; angiotensin receptor binding; D1 dopamine receptor binding; enzyme binding; follicle stimulating hormone receptor binding; G-protein-coupled receptor binding; mitogen-activated protein kinase binding; platelet activating factor receptor binding; protein binding; protein complex binding; protein complex scaffold; protein domain specific binding; protein kinase B binding; receptor binding; type 1 angiotensin receptor binding; type 2A serotonin receptor binding; ubiquitin protein ligase binding

Biological Process: adult walking behavior; arrestin mediated desensitization of G-protein coupled receptor protein signaling pathway; brain development; detection of temperature stimulus involved in sensory perception of pain; dopamine receptor signaling pathway; follicle-stimulating hormone signaling pathway; G-protein coupled receptor internalization; inhibition of NF-kappaB transcription factor; negative regulation of caspase activity; negative regulation of interleukin-1 beta production; negative regulation of interleukin-12 production; negative regulation of interleukin-6 production; negative regulation of natural killer cell mediated cytotoxicity; negative regulation of protein kinase B signaling cascade; negative regulation of protein ubiquitination; negative regulation of toll-like receptor signaling pathway; negative regulation of tumor necrosis factor production; platelet activation; positive regulation of calcium ion transport; positive regulation of peptidyl-serine phosphorylation; positive regulation of peptidyl-tyrosine phosphorylation; positive regulation of protein kinase B signaling cascade; positive regulation of protein ubiquitination; positive regulation of receptor internalization; positive regulation of synaptic transmission, dopaminergic; proteasomal ubiquitin-dependent protein catabolic process; protein transport; protein ubiquitination; receptor internalization; transcription from RNA polymerase II promoter; transforming growth factor beta receptor signaling pathway; Wnt receptor signaling pathway, planar cell polarity pathway