CST, 2009S, Phospho-beta-Catenin (Ser33/37) Antibody

Polyclonal Antibody for studying Catenin-beta (Ser33/Ser37) phosphate. Validated for Western Blotting,Immunoprecipitation. Highly specific and rigorously validated in-house, Phospho-beta-Catenin (Ser33/37) Antibody (CST #2009) is ready to ship. Product Usage Information Western Blotting: 1:1000 Immunoprecipitation: 1:50 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at -20°C. Do not aliquot the antibody. Protocol Available protocols: Western Blotting, Immunoprecipitation Specificity / Sensitivity Phospho-beta-Catenin (Ser33/37) Antibody detects endogenous levels of β-catenin only when phosphorylated at Ser33 and Ser37. Species Reactivity: Human Source / Purification Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser33 and Ser37 of human β-catenin. Antibodies are purified by protein A and peptide affinity chromatography. Background β-catenin is a key downstream effector in the Wnt signaling pathway (1). It is implicated in two major biological processes in vertebrates: early embryonic development (2) and tumorigenesis (3). CK1 phosphorylates β-catenin at Ser45. This phosphorylation event primes β-catenin for subsequent phosphorylation by GSK-3β (4-6). GSK-3β destabilizes β-catenin by phosphorylating it at Ser33, Ser37, and Thr41 (7). Mutations at these sites result in the stabilization of β-catenin protein levels and have been found in many tumor cell lines (8). Alternate Names armadillo; Beta-catenin; catenin (cadherin-associated protein), beta 1, 88kDa; catenin beta 1; Catenin beta-1; CTNB1; CTNNB; CTNNB1; DKFZp686D02253; EVR7; FLJ25606; FLJ37923; MRD19; NEDSDV Specification REACTIVITY: H SENSITIVITY: Endogenous MW (kDa): 92 SOURCE: Rabbit