Beta-arrestin-2, or ARRB2, is an adaptor protein belonging to the arrestin family with an N- arrestin domain and a C- arrestin domain.
ARRB2 is a regulatory protein involved in heterotrimeric G protein-coupled receptor desensitization and is known to regulate beta2-adrenergic receptor (beta2AR) function by enhancing beta2AR mediated nuclear translocation of ERK.
ARRB2 binds to phosphorylated beta2ARs, thereby causing a significant impairment of their capacity to activate G(S) proteins.
Along with AIP4, ARRB2 acts as an endosomal sorting molecule that mediates CXCR4 entry into a degradative pathway.
It may also be involved in hormone-specific desensitization of TSH receptors.
ARRB2 is a Ca2+ binding protein of the retinal outer segments and binds to P-rhodopsin and is also involved in synaptic transmission in photoreceptor cells.
It is widely expressed in most of the tissues, especially neuronal tissues and spleen.
Applications:Suitable for use in Western Blot and Immunohistochemistry.
Other applications not tested.
Recommended Dilution:Western Blot: 0.25-0.5ug/mlImmunohistochemistry (formalin fixed paraffin embedded): 5ug/mlOptimal dilutions to be determined by the researcher.
Positive Control:HUVEC cell lysate
Storage and Stability:May be stored at 4°C for short-term only.
Aliquot to avoid repeated freezing and thawing.
Store at -20°C.
Aliquots are stable for at least 12 months.
For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
仕様
Size:100ug
Host:rabbit
Source Antibody:human
Grade:Affinity Purified
Purity:Purified by immunoaffinity chromatography.
Form:Supplied as a liquid in PBS, 0.05% BSA, 0.05% sodium azide.
Specificity:Recognizes human ARRB2. Species Crossreactivity: bovine, canine, mouse, equine, monkey, rat. Species sequence homology: pufferfish, zebrafish, xenopus.
Isotype:IgG
Calc Applications Abbrev:IHC WB
Calc Crossreactivity:Bo Ca Eq Hu Mk Mo Rt
Immunogen:Synthetic peptide corresponding to aa23-40 (GKRDFVDHLDKVDPVDG) of human ARRB2, Gen Bank no. gb|ABG47460.1|.