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beta-Arrestin 1,2 Rabbit anti-Human, Rat, Polyclonal, Invitrogen™

Rabbit Polyclonal Antibody

Manufacturer:  Invitrogen PA1730

Catalog No. PA1730


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Description

Description

PA1-730 detects recombit rat and human beta-arrestin and beta-arrestin2. This antibody does not detect visual or cone arrestin. PA1-730 has been successfully used in Western blot, Immunohistochemistry (paraffin) and immunoprecipitation procedures. By Western blot, this antibody detects ~49 kDa and ~47 kDa proteins representing recombit beta-arrestin and beta-arrestin2, respectively. The PA1-730 immunizing peptide corresponds to amino acid residues 384-397 from human beta-arrestin2. This peptide (Cat. No. PEP-156) is available for use in neutralization and control experiments.

Vision involves the conversion of light into electrochemical signals that are processed by the retina and subsequently sent to and interpreted by the brain. The process of converting light to an electrochemical signal begins when the membrane-bound protein, rhodopsin, absorbs light within the retina. In the active state, rhodopsin activates transducin, a GTP binding protein that promotes the hydrolysis of cGMP by phosphodiesterase (PDE). The decrease of intracellular cGMP concentrations causes the ion channels within the outer segment of the rod or cone to close, thus causing membrane hyperpolarization and, eventually, signal transmission. Rhodopsin’s activity is believed to be shut off by its phosphorylation followed by binding of the soluble protein arrestin. Arrestins are cytosolic proteins that are involved in G protein-coupled receptor (GPCR) desensitization. Arrestin binding to activated GPCRs is phosphorylation dependent and, once bound, uncouple the GPCR from the associated heterotrimeric G proteins. There are currently 4 known mammalian isoforms, beta-arrestin1 (arrestin2), beta-arrestin2 (arrestin3), visual arrestin (arrestin1), and cone arrestin. The beta- isoforms are ubiquitously expressed and are known to interact with acetylcholine and adrenergic receptors. Visual and cone arrestins are found to interact directly with transducin.
Specifications

Specifications

beta-Arrestin 1,2
Polyclonal
Unconjugated
ARRB1
Liquid
ARRB1, ARRB2
Synthetic Peptide: C D(384) D I V F E D F A R L R L K(397)
Antigen affinity chromatography
RUO
Antibody
Polyclonal
Human, Rat
Immunohistochemistry (Paraffin), Immunoprecipitation, Western Blot
1 mg/mL
PBS with 1mg/mL BSA and 0.05% sodium azide
P32121, P49407, P29066, P29067
beta-arrestin2, SAG, S-Arrestin
Rabbit
IgG
200 μg
-20° C, Avoid Freeze/Thaw Cycles
Primary
25387, 25388, 408, 409
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