beta-Arrestin 2 Antibody



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beta-Arrestin 2 Antibody Summary

Synthetic peptide directed towards the middle region of human ARRB2. Peptide sequence RLVIRKVQFAPEKPGPQPSAETTRHFLMSDRSLHLEASLDKELYYHGEPL.
Predicted Species
Rat (100%), Porcine (100%), Rabbit (100%), Bovine (100%), Zebrafish (93%), Canine (100%), Equine (100%). Backed by our 100% Guarantee.
Immunogen affinity purified
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  • Immunohistochemistry 1 ug/ml
  • Immunohistochemistry-Paraffin 4-8 ug/ml
  • Western Blot 1:1000
Application Notes
This is a rabbit polyclonal antibody against ARRB2 and was validated on Western Blot and immunohistochemistry .
Theoretical MW
44 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Packaging, Storage & Formulations

Store at -20C. Avoid freeze-thaw cycles.
PBS and 2% Sucrose
0.09% Sodium Azide
Immunogen affinity purified


The addition of 50% glycerol is optional for those storing this antibody at -20C and not aliquoting smaller units. However, please note that glycerol may interrupt some downstream antibody applications and should be added with caution.

Alternate Names for beta-Arrestin 2 Antibody

  • ARB2
  • ARR2
  • ARRB2
  • arrestin 3
  • Arrestin beta-2
  • arrestin, beta 2
  • BARR2
  • betaArrestin 2
  • beta-Arrestin 2
  • beta-arrestin-2
  • DKFZp686L0365


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 2, like arrestin beta 1, was shown to inhibit beta-adrenergic receptor function in vitro. It is expressed at high levels in the central nervous system and may play a role in the regulation of synaptic receptors. Besides the brain, a cDNA for arrestin beta 2 was isolated from thyroid gland, and thus it may also be involved in hormone-specific desensitization of TSH receptors. Multiple alternatively spliced transcript variants have been found for this gene, but the full-length nature of some variants has not been defined.


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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FAQs for beta-Arrestin 2 Antibody (NBP1-79278). (Showing 1 - 1 of 1 FAQ).

  1. We are going to order NBP1-79278 for Western Blot detection of Zebrafish embryonic Arrb2. Does this Ab also recognize Arrb1 due to their conserved sequences? Can you please tell me the exact peptide you used to generate the Ab for human ARRB2?
    • Unfortunately, our anti-hArrb2 antibody has not been tested for potential cross-reactivity to hArrb1. Based on the sequence of the peptide immunogen used to generate this anti-hARRB2 antibody, it is 100% homologous to all three isoforms of the human ARRB2 protein ( and 86% homologous to either isoform of the human ARRB1 protein ( Synthetic peptide directed towards the middle region of human ARRB2. Peptide sequence RLVIRKVQFAPEKPGPQPSAETTRHFLMSDRSLHLEASLDKELYYHGEPL.
mFluor Violet Conjugated Antibodies

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Gene Symbol ARRB2