CST, 3857S, beta-Arrestin 2 (C16D9) Rabbit Monoclonal Antibody

Monoclonal Antibody for studying Arrestin, beta2. Validated for Western Blotting,Immunohistochemistry (Paraffin). Available in 2 sizes. Highly specific and rigorously validated in-house, beta-Arrestin 2 (C16D9) Rabbit Monoclonal Antibody (CST #3857) is ready to ship. Product Usage Information Western Blotting: 1:1000 Immunohistochemistry (Paraffin): 1:50 - 1:200 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at -20°C. Do not aliquot the antibody. For a carrier free (BSA and azide free) version of this product see product # 87594 . Protocol Available protocols: Western Blotting, Immunohistochemistry (Paraffin) Specificity / Sensitivity beta-Arrestin 2 (C16D9) Rabbit Monoclonal Antibody detects endogenous levels of total β-arrestin 2 protein. This antibody does not recognize transfected human β-arrestin 1. Species Reactivity: Human, Mouse, Rat, Monkey Source / Purification Monoclonal antibody is produced by immunizing animals with recombinant human β-arrestin 2. Background Arrestin proteins function as negative regulators of G protein-coupled receptor (GPCR) signaling. Cognate ligand binding stimulates GPCR phosphorylation, which is followed by binding of arrestin to the phosphorylated GPCR and the eventual internalization of the receptor and desensitization of GPCR signaling (1). Four distinct mammalian arrestin proteins are known. Arrestin 1 (also known as S-arrestin) and arrestin 4 (X-arrestin) are localized to retinal rods and cones, respectively. Arrestin 2 (also known as β-arrestin 1) and arrestin 3 (β-arrestin 2) are ubiquitously expressed and bind to most GPCRs (2). β-arrestins function as adaptor and scaffold proteins and play important roles in other processes, such as recruiting c-Src family proteins to GPCRs in Erk activation pathways (3,4). β-arrestins are also involved in some receptor tyrosine kinase signaling pathways (5-8). Additional evidence suggests that β-arrestins translocate to the nucleus and help regulate transcription by binding transcriptional cofactors (9,10). Alternate Names ARB2; ARR2; ARRB2; arrestin 3; arrestin beta 2; Arrestin beta-2; arrestin, beta 2; BARR2; Beta-arrestin-2; DKFZp686L0365; Non-visual arrestin-3 Specification REACTIVITY: H M R Mk SENSITIVITY: Endogenous MW (kDa): 50 Source/Isotype: Rabbit