Mouse Monoclonal Arrestin-beta-2 antibody (STJ98468)

$379.00

Reactivity: Human, Mouse, Rat, Pig
Applications: WB, IF
Conjugation: Unconjugated
Supplier: St John’s Laboratory Ltd.

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Mouse Monoclonal Arrestin-beta-2 antibody (STJ98468)

Supplier: St John’s Laboratory Ltd.

Recommended applications: WB, IF

Recommended dilution: WB 1:1000-1:2000; IF 1:100-1:500

Recommended protocols: check protocols

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Alternative names:

Check alternative names for the antibody

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ARRB2 antibody, ARB2 antibody, ARR2 antibody,|ARB 2 antibody|ARB2 antibody|ARR 2 antibody|ARR2 antibody|ARRB 2 antibody|ARRB2 antibody|ARRB2_HUMAN antibody|Arrestin 3 antibody|Arrestin beta 2 antibody|Arrestin beta-2 antibody|BARR2 antibody|Beta-arrestin-2 antibody|DKFZp686L0365 antibody|HGNC:712 antibody|Anti-Beta Arrestin 2 antibody (ab54790)
SCBT cat No: sc-6387|sc-30938|sc-365535|sc-166935|sc-514791|sc-98833|sc-13140|

 

Name

Arrestin-beta-2 Monoclonal Antibody

Catalogue No.

STJ98468

Reactivity

Human, Mouse, Rat, Pig

Specificity

Arrestin-beta-2 Monoclonal Antibody detects endogenous levels of Arrestin-beta-2 protein.

Immunogen

Purified recombinant human Arrestin-beta-2 (C-terminus) protein fragments expressed in Ecoli

Host

Mouse

Applications

WB, IF

Recommended dilution

WB 1:1000-1:2000; IF 1:100-1:500

Clonality

Monoclonal

Conjugation

Unconjugated

Formulation

Arrestin-beta-2 Antibody was tube-contained. Purified in buffer containing 0.1M Tris-Glycine (pH 7.4, 150 mM NaCl) with 0.2% sodium azide, 50% glycerol.

Concentration

1 mg/ml

Purification

Arrestin-beta-2 Antibody was purified using affinity purification.

Storage

-20 Celsius degree. Avoid repeated freeze/thaw cycles.

Alternative antibody names

Beta-arrestin-2 antibody, Arrestin beta-2 antibody

Database links

Human UniProt/Swiss-Prot:P32121;Mouse UniPort/Swiss-Prot: Q91YI4;Rat UniProt/Swiss-Port: P29067;Human Entrez Gene: 409;Mouse Entrez Gene: 216869;Rat Entrez Gene: Rn.32973

Protein names

Beta-arrestin-2 , Arrestin beta-2

Protein function

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 signalosomes. Acts as signaling scaffold for the AKT1 pathway. GPCRs for which the beta-arrestin-mediated signaling relies on both ARRB1 and ARRB2 (codependent regulation) include ADRB2, F2RL1 and PTH1R. For some GPCRs the beta-arrestin-mediated signaling relies on either ARRB1 or ARRB2 and is inhibited by the other respective beta-arrestin form (reciprocal regulation). Increases ERK1/2 signaling in AGTR1- and AVPR2-mediated activation (reciprocal regulation). Involved in CCR7-mediated ERK1/2 signaling involving ligand CCL19. Is involved in type-1A angiotensin II receptor/AGTR1-mediated ERK activity. Is involved in type-1A angiotensin II receptor/AGTR1-mediated MAPK10 activity. Is involved in dopamine-stimulated AKT1 activity in the striatum by disrupting the association of AKT1 with its negative regulator PP2A. Involved in AGTR1-mediated chemotaxis. Appears to function as signaling scaffold involved in regulation of MIP-1-beta-stimulated CCR5-dependent chemotaxis. Involved in attenuation of NF-kappa-B-dependent transcription in response to GPCR or cytokine stimulation by interacting with and stabilizing CHUK. Suppresses UV-induced NF-kappa-B-dependent activation by interacting with CHUK. The function is promoted by stimulation of ADRB2 and dephosphorylation of ARRB2. Involved in p53/TP53-mediated apoptosis by regulating MDM2 and reducing the MDM2-mediated degradation of p53/TP53. May serve as nuclear messenger for GPCRs. Upon stimulation of OR1D2, may be involved in regulation of gene expression during the early processes of fertilization. Also involved in regulation of receptors other than GPCRs. Involved in endocytosis of TGFBR2 and TGFBR3 and down-regulates TGF-beta signaling such as NF-kappa-B activation. Involved in endocytosis of low-density lipoprotein receptor/LDLR. Involved in endocytosis of smoothened homolog/Smo, which also requires ADRBK1. Involved in endocytosis of SLC9A5. Involved in endocytosis of ENG and subsequent TGF-beta-mediated ERK activation and migration of epithelial cells. Involved in Toll-like receptor and IL-1 receptor signaling through the interaction with TRAF6 which prevents TRAF6 autoubiquitination and oligomerization required for activation of NF-kappa-B and JUN. Involved in insulin resistance by acting as insulin-induced signaling scaffold for SRC, AKT1 and INSR. Involved in regulation of inhibitory signaling of natural killer cells by recruiting PTPN6 and PTPN11 to KIR2DL1. Involved in IL8-mediated granule release in neutrophils. Involved in the internalization of the atypical chemokine receptor ACKR3.

Protein sequence and domain

The [DE]-X(1,2)-F-X-X-[FL]-X-X-X-R motif mediates interaction the AP-2 complex subunit AP2B1. / Belongs to the arrestin family.

Protein post-translational modifications

Phosphorylated at Thr-382 in the cytoplasm; probably dephosphorylated at the plasma membrane. The phosphorylation does not regulate internalization and recycling of ADRB2, interaction with clathrin or AP2B1. / The ubiquitination status appears to regulate the formation and trafficking of beta-arrestin-GPCR complexes and signaling. Ubiquitination appears to occurr GPCR-specifc. Ubiquitinated by MDM2; the ubiquitination is required for rapid internalization of ADRB2. Deubiquitinated by USP33; the deubiquitination leads to a dissociation of the beta-arrestin-GPCR complex. Stimulation of a class A GPCR, such as ADRB2, induces transient ubiquitination and subsequently promotes association with USP33. Stimulation of a class B GPCR promotes a sustained ubiquitination. / Hydroxylation by PHD2 modulates the rate of internalization by slowing down recruitment to the plasma membrane and inhibiting subsequent co-internalization with class A receptors.

Protein cellular localization

Cytoplasm / Nucleus / Cell membrane / Membrane > clathrin-coated pit / Cytoplasmic vesicle

Research area

All research areas>Signaling Intermediates>Arrestin
(View all antibody categories related to Signaling Intermediates)

Note

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Supplier

St John’s Laboratory Ltd.

Product type

Primary antibody

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