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]
Catalog No
A0455
Reactivity
Human, Monkey
Applications
WB, IHC-p, IF(paraffin section), ELISA
Modification
Phospho Specific
Source
Polyclonal Rabbit
Dilution
Western Blot: 1/500 - 1/2000. Immunohistochemistry: 1/100 - 1/300. ELISA: 1/10000. Not yet tested in other applications.
Purification
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
Concentration
1 mg/ml
Storage and Stability
-20°C/1 year
Other Name
ARRB1; ARR1; Beta-arrestin-1; Arrestin beta-1
Molecular Weight (Da)
47066
Gene Name
ARRB1
Protein Name
Beta-arrestin-1
Human Gene ID
408
Human Swiss Prot No.
P49407
Immunogen
The antiserum was produced against synthesized peptide derived from human Arrestin 1 around the phosphorylation site of Ser412. AA range:369-418
Specificity
Phospho-Arrestin-β-1 (S412) Polyclonal Antibody detects endogenous levels of Arrestin-β-1 protein only when phosphorylated at S412.
Formulation
Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
Western blot analysis of lysates from COS7 cells treated with Etoposide 25uM 60', using Arrestin 1 (Phospho-Ser412) Antibody. The lane on the right is blocked with the phospho peptide.
Immunohistochemistry analysis of paraffin-embedded human breast carcinoma, using Arrestin 1 (Phospho-Ser412) Antibody. The picture on the right is blocked with the phospho peptide.
Immunohistochemical analysis of paraffin-embedded Human brain. Antibody was diluted at 1:100(4° overnight). High-pressure and temperature Tris-EDTA,pH8.0 was used for antigen retrieval. Negetive contrl (right) obtaned from antibody was pre-absorbed by immunogen peptide.
