Phospho-P53 (Ser46) Polyclonal Antibody

Acts as a tumor suppressor in many tumor types; induces growth arrest or apoptosis depending on the physiological circumstances and cell type. Involved in cell cycle regulation as a trans-activator that acts to negatively regulate cell division by controlling a set of genes required for this process. One of the activated genes is an inhibitor of cyclin-dependent kinases. Apoptosis induction seems to be mediated either by stimulation of BAX and FAS antigen expression, or by repression of Bcl-2 expression. Implicated in Notch signaling cross-over. Isoform 2 enhances the transactivation activity of isoform 1 from some but not all TP53-inducible promoters. Isoform 4 suppresses transactivation activity and impairs growth suppression mediated by isoform 1. Isoform 7 inhibits isoform 1-mediated apoptosis.

Antigen NY-CO-13, BCC7, Cellular tumor antigen p53, FLJ92943, LFS1, Mutant tumor protein 53, p53, p53 tumor suppressor, P53, Phosphoprotein p53, Tp53, Transformation related protein 53, TRP53, Tumor protein 53, Tumor protein p53, Tumor suppressor p53