Antigen: phosphopeptide corresponding to amino acid residues surrounding the phospho-Ser33,37 of human .beta.-catenin . Host: rabbit . Cross-reactivity: (+) human .beta.-catenin . Application: WB . (beta)-Catenin is a central component of the cadherin cell adhesion complex and plays an essential role in neural development in the Wingless/Wnt signaling pathway. It is thought to be regulated by the sequential phosphorylation of Ser29, Ser33, Ser37, and Thr41 by GSK3(beta). This hyperphosphorylation promotes the ubiquitylation and targeted destruction of (beta)-catenin.