Our β-Catenin (Tyr-333)[γ-Catenin (Tyr-324)] rabbit polyclonal phosphospecific primary antibody from PhosphoSolutions is produced in-house. It detects chicken, human, mouse, rat, and Xenopus β-Catenin (Tyr-333)[γ-Catenin (Tyr-324)] and is antigen affinity purified. It is great for use in WB.
Western blot analysis of A431 cells stimulated with pervanadate (1 mM) for 30 min (lanes 1 & 3) then treated with akaline phosphatase (lanes 2 & 4). The blot was probed with CP1061 anti-β-Catenin (CP1061) (lanes 1 & 2) and CP3051 anti-β-Catenin (Tyr-333) (lanes 3 & 4).
β-Catenin is a 92 kDa protein that binds to the cytoplasmic tail of E-Cadherin. The cadherins, transmembrane adhesion molecules, are found with catenins at adherens junctions. Deletions in the cytoplasmic domain of E-Cadherin eliminate catenin binding and result in a loss of cell adhesion. Tyrosine phosphorylation of β-Catenin can regulate its interaction with critical components of adherens junctions. Both Fer and Fyn kinases phosphorylate tyrosine 142 in vitro. Overexpression of these kinases in epithelial cells disrupts interactions between α- and β-Catenins. The phosphorylation of tyrosine 142 may act as a switch from the transcriptional to the adhesive role of β-Catenin. Src family kinases can also phosphorylate tyrosine 86 and 654 in β-Catenin. The Tyr-654 phosphorylation regulates β-Catenin binding to E-cadherin. Thus, site-specific tyrosine phosphorylation of β-Catenin may regulate protein-protein interactions leading to changes in cell adhesion.
Antigen Affinity Purified
Polyclonal
IgG
WB
Rabbit
CTNNB1
92
Phospho-β-Catenin (Tyr-333) synthetic peptide (coupled to KLH) that includes amino acid residues around tyrosine 333 of human β-Catenin. This peptide sequence is highly conserved in rat and mouse β-Catenin, and has high homology to the conserved site in γ-Catenin (Tyr-324).
Chicken, Frog, Human, Mouse, Rat
Storage at -20°C is recommended, as aliquots may be taken without freeze/thawing due to presence of 50% glycerol. Stable for at least 1 year at -20°C.
Liquid
PBS + 1 mg/ml BSA, 0.05% NaN3 and 50% glycerol
WB: 1:500
Unconjugated
The antibody detects a 92kDa* protein corresponding to the molecular mass of β-Catenin on SDS-PAGE immunoblots of human A431 cells treated with pervanadate, but not in control cells. In addition, the pervanadate induced reactivity is not observed after alkaline phosphatase treatment.
Phosphorylated
Tyr-333
Western blots performed on each lot.
For research use only. Not intended for therapeutic or diagnostic use. Use of all products is subject to our terms and conditions, which can be viewed on our website.
United States
After date of receipt, stable for at least 1 year at -20°C.
