ARRB2 / Beta Arrestin 2 Antibody (Biotin)
Primary AntibodyLSBio Guarantee
| Antibody: | Rabbit Polyclonal |
| Applications: | Enzyme-Linked Immunosorbent Assay |
| Reactivity: | Human |
| Format: | Liquid |
$300.00each
Catalog Number: LS-C498426-50
Catalog Number: LS-C498426
For bulk orders or custom formulations:
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- Description
- Beta Arrestin 2 antibody LS-C498426 is a biotin-conjugated rabbit polyclonal antibody to human Beta Arrestin 2 (ARRB2). Validated for ELISA.
- Application
- ELISA
- Reactivity
- Hu
- Intended Use
- Research Use Only
- Guarantees
- This antibody carries the LSBio 100% Guarantee. ✓
- Category
- Antibodies > Primary Antibodies > Polyclonal Antibodies
- Alternative Names
- ARRB2 | Arrestin 3 | Arrestin beta-2 | ARB2 | ARR2 | BARR2 | Arrestin, beta 2 | Beta-arrestin-2
- UniProt Number
- P32121
- NCBI GenBank
- NM_004313 | NP_004304.1
- SwissProt
- P32121
Target
- Target
- Human ARRB2 / Beta Arrestin 2
- Antigen Species
- Human
- Epitope
- Functions in regulating agonist-mediated G-protein coupled receptor (GPCR) signaling by mediating both receptor desensitization and resensitization processes. During homologous desensitization, beta-arrestins bind to the GPRK-phosphorylated receptor and sterically preclude its coupling to the cognate G-protein; the binding appears to require additional receptor determinants exposed only in the active receptor conformation. The beta-arrestins target many receptors for internalization by acting as endocytic adapters (CLASPs, clathrin-associated sorting proteins) and recruiting the GPRCs to the adapter protein 2 complex 2 (AP-2) in clathrin-coated pits (CCPs). However, the extent of beta-arrestin involvement appears to vary significantly depending on the receptor, agonist and cell type. Internalized arrestin-receptor complexes traffic to intracellular endosomes, where they remain uncoupled from G-proteins. Two different modes of arrestin-mediated internalization occur. Class A receptors, like ADRB2, OPRM1, ENDRA, D1AR and ADRA1B dissociate from beta-arrestin at or near the plasma membrane and undergo rapid recycling. Class B receptors, like AVPR2, AGTR1, NTSR1, TRHR and TACR1 internalize as a complex with arrestin and traffic with it to endosomal vesicles, presumably as desensitized receptors, for extended periods of time. Receptor resensitization then requires that receptor-bound arrestin is removed so that the receptor can be dephosphorylated and returned to the plasma membrane. Mediates endocytosis of CCR7 following ligation of CCL19 but not CCL21. Involved in internalization of P2RY1, P2RY4, P2RY6 and P2RY11 and ATP-stimulated internalization of P2RY2. Involved in phosphorylation-dependent internalization of OPRD1 and subsequent recycling or degradation. Involved in ubiquitination of IGF1R. Beta-arrestins function as multivalent adapter proteins that can switch the GPCR from a G-protein signaling mode that transmits short-lived signals from the plasma membrane via small molecule second messengers and ion channels to a beta-arrestin signaling mode that transmits a distinct set of signals that are initiated as the receptor internalizes and transits the intracellular compartment. Acts as signaling scaffold for MAPK pathways such as MAPK1/3 (ERK1/2) and MAPK10 (JNK3). ERK1/2 and JNK3 activated by the beta-arrestin scaffold are largely excluded from the nucleus and confined to cytoplasmic locations such as endocytic vesicles, also called beta-arrestin signalos
- Gene Name
- ARRB2
Antibody
- Host Species
- Rabbit
- Clonality
- Polyclonal
- Isotype
- IgG
Immunogen
- Immunogen
- Recombinant Human Beta-arrestin-2 protein (222-369AA)
- Immunogen Type
- Recombinant Immunogen
Format
- Conjugate/Label
- Biotin
- Format
- Liquid
- Formulation
- PBS, pH 7.4, 0.03% Proclin 300, 50% glycerol.
- Preservative
- Yes
- Purification Method
- Protein G Affinity
Storage & Handling
- Storage Conditions
- Short term: -20°C; Long term: -80°C; Avoid freeze-thaw cycles.
- Recommended Storage Buffer
- PBS