Molecular weight (DA)
50kD
Immunogen
Purified recombinant human beta Arrestin 1 protein fragments expressed in E.coli.
Specificity
This antibody detects endogenous levels of beta Arrestin 1 and does not cross-react with related proteins.
Formulation
Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
Purification process (Immunogen)
The antibody was affinity-purified from mouse ascites by affinity-chromatography using epitope-specific immunogen.
Background
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 1 is a cytosolic protein and acts as a cofactor in the beta-adrenergic receptor kinase (BARK) mediated desensitization of beta-adrenergic receptors. Besides the central nervous system, it is expressed at high levels in peripheral blood leukocytes, and thus the BARK/beta-arrestin system is believed to play a major role in regulating receptor-mediated immune functions. Alternatively spliced transcripts encoding different isoforms of arrestin beta 1 have been described. [provided by RefSeq, Jan 2011],
Function
function:Regulates beta-adrenergic receptor function. Beta-arrestins seem to bind phosphorylated beta-adrenergic receptors, thereby causing a significant impairment of their capacity to activate G(S) proteins.,online information:Arrestin entry,similarity:Belongs to the arrestin family.,
Other name
ARB 1;ARB 1;ARB1;ARB1;ARR 1;ARR 1;ARR1;ARR1;ARRB 1;ARRB1;ARRB1;ARRB1_HUMAN;Arrestin 2; Arrestin beta 1;Arrestin beta-1;Beta-arrestin-1.
Fields
>>MAPK signaling pathway;>>Chemokine signaling pathway;>>Endocytosis;>>Hedgehog signaling pathway;>>Dopaminergic synapse;>>Olfactory transduction;>>Relaxin signaling pathway;>>Parathyroid hormone synthesis, secretion and action;>>GnRH secretion;>>Morphine addiction;>>Chemical carcinogenesis - receptor activation
Human protein sequence Database
P49407
Mouse protein sequence database
Q8BWG8
Rat protein sequence database
Cellular localization
Cytoplasm. Nucleus. Cell membrane. Membrane, clathrin-coated pit . Cell projection, pseudopodium . Cytoplasmic vesicle. Translocates to the plasma membrane and colocalizes with antagonist-stimulated GPCRs. The monomeric form is predominantly located in the nucleus. The oligomeric form is located in the cytoplasm. Translocates to the nucleus upon stimulation of OPRD1 (By similarity). .
Tissue expression
Brain,Peripheral blood,Uterus,
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