PurificationAntibodies were produced by immunizing rabbits with synthetic phosphopeptide and KLH conjugates. Antibodies were purified by affinity-chromatography using epitope-specific phosphopeptide. Non-phospho specific antibodies were removed by chromatogramphy using non-phosphopeptide.
ApplicationsWB
Species ReactivityHu
SpecificityThe antibody detects endogenous level of p53 only when phosphorylated at threonine 18.
Immunogen TypePeptide-KLH
Immunogen DescriptionPeptide sequence around phosphorylation site of threonine 18 (Q-E-T(p)-F-S) derived from Human p53.
Target Namep53
ModificationPhospho-Thr18
Alternative NamesAntigen NY-CO-13; Phosphoprotein p53; TP53; Tumor suppressor p53;
FormulationSupplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
StorageStore at -20°C for long term preservation (recommended). Store at 4°C for short term use.
Application Details
Predicted MW: 53kd
Western blotting: 1:500~1:1000
Images
Western blot analysis of extracts from HT29 and MDA cells untreated or treated with anisomycin using p53(Phospho-Thr18) Antibody #AB11095.
Background
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.
Lin T, et al. (2005) Nat Cell Biol; 7(2): 165-71.
Vega FM, et al. (2004) Mol Cell Biol; 24(23): 10366-80.
Li J, et al. (2004) J Biol Chem; 279(40): 41275-9.
Wang J, et al. (2004) J Biol Chem; 279(38): 39584-92.