Phospho-P53 (Ser15) 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. In cooperation with mitochondrial PPIF is involved in activating oxidative stress-induced necrosis; the function is largely independent of transcription. Induces the transcription of long intergenic non-coding RNA p21 (lincRNA-p21) and lincRNA-Mkln1. LincRNA-p21 participates in TP53-dependent transcriptional repression leading to apoptosis and seem to have to effect on cell-cycle regulation. Implicated in Notch signaling cross-over. Prevents CDK7 kinase activity when associated to CAK complex in response to DNA damage, thus stopping cell cycle progression. 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. Regulates the circadian clock by repressing CLOCK-ARNTL/BMAL1-mediated transcriptional activation of PER2 (PubMed:24051492) .

P53; BCC7; LFS1; TRP53; Cellular tumor antigen p53; Antigen NY-CO-13; Phosphoprotein p53; Tumor suppressor p53; TP53

7157

P04637

Ser15

Extracellular, Cytoplasm, Nucleus, Mitochondrion

Human

1-50/393

Phospho-P53 (Ser15)

Unconjugated

KLH conjugated synthetic phosphopeptide derived from human P53 around the phosphorylation site of Ser15

WB, IHC-P, IHC-F, IF, Flow-Cyt, ICC/IF

Purified by Protein A.

1µg/µl

WB (1:300-5000), IHC-P (1:200-400), IHC-F (1:100-500), IF (), Flow-Cyt (1ug/Test), ICC/IF (1:50-100)

0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol.

Phosphorylation

Store at -20°C for 12 months.