Our Anti-p53 (Ser392) rabbit polyclonal phosphospecific primary antibody from PhosphoSolutions is produced in-house. It detects human and rat p53 (Ser392) and is antigen affinity purified from pooled serum. It is great for use in WB.
Western blot of rat brain nuclear fraction lysate showing specific immunolabeling of the ~53 kDa p53 phosphorylated at Ser392 in the first lane (-). Phosphospecificity is shown in the second lane (+) where the immunolabeling is completely eliminated by blot treatment with lambda phosphatase (λ-Ptase, 1200 units for 30 minutes).
p53 has a well established role in blocking the proliferative action of damaged cells and acting in essence as an anticancer agent (Sharpless and DePinho, 2002; Yin et al., 1992). It has been called the guardian of the genome (Lane, 1992). Phosphorylation of Ser-392 in p53 is associated with formation of human tumors (Saito et al., 2003; Pise-Masison et al., 1998; Kim et al., 2004). In addition, p53 has been linked to effects of aging and oxidative stress (Sharpless and DePinho, 2002). An increase in p53 has also been linked to deficits in LTP and learning and memory (Jiang et al., 1998)
Antigen Affinity Purified from Pooled Serum
Polyclonal
IgG
WB
Rabbit
TP53
53 kDa
Synthetic phospho-peptide corresponding to amino acid residues surrounding Ser392 of human p53, conjugated to keyhole limpet hemocyanin (KLH).
Rat
AB_2492196
Storage at -20°C is recommended, as aliquots may be taken without freeze/thawing due to presence of 50% glycerol. Stable for at least 1 year at -20°C.
Liquid
Prepared from pooled rabbit serum by affinity purification via sequential chromatography on phospho and non-phosphopeptide affinity columns.
10 mM HEPES (pH 7.5), 150 mM NaCl, 100 µg per ml BSA and 50% glycerol.
WB: 1:1000
WB Brain: 1:1000
Unconjugated
Specific for endogenous levels of the ~53 kDa p53 protein phosphorylated at Ser392 ~53 kDa p53 protein phosphorylated at Ser392. The immunolabeling is completely eliminated by treatment with λ-phosphatase.
Phosphorylated
Ser392
Western blots performed on each lot.
For research use only. Not intended for therapeutic or diagnostic use. Use of all products is subject to our terms and conditions, which can be viewed on our website.
After date of receipt, stable for at least 1 year at -20°C.
Jiang, Y.H., Armstrong, D., Albrecht, U., Atkins, C.M., Noebels, J.L., Eichele, G., Sweatt, J.D. and Beaudet, A.L., 1998. Mutation of the Angelman ubiquitin ligase in mice causes increased cytoplasmic p53 and deficits of contextual learning and long-term potentiation. Neuron, 21(4), pp.799-811. PMID: 9808466
Kim, Y.Y., Park, B.J., Kim, D.J., Kim, W.H., Kim, S., Oh, K.S., Lim, J.Y., Kim, J., Park, C. and Park, S.I., 2004. Modification of serine 392 is a critical event in the regulation of p53 nuclear export and stability. FEBS letters, 572(1-3), pp.92-98. PMID: 15304330
Lane, D.P., 1992. Cancer. p53, guardian of the genome. Nature, 358, pp.15-16. PMID: 1614522
Pise-Masison, C.A., Radonovich, M., Sakaguchi, K., Appella, E. and Brady, J.N., 1998. Phosphorylation of p53: a novel pathway for p53 inactivation in human T-cell lymphotropic virus type 1-transformed cells. Journal of virology, 72(8), pp.6348-6355. PMID: 9658074
Saito, S.I., Yamaguchi, H., Higashimoto, Y., Chao, C., Xu, Y., Fornace, A.J., Appella, E. and Anderson, C.W., 2003. Phosphorylation site interdependence of human p53 post-translational modifications in response to stress. Journal of Biological Chemistry, 278(39), pp.37536-37544. PMID: 12860987
Sharpless, N.E. and DePinho, R.A., 2002. p53: good cop/bad cop. Cell, 110(1), pp.9-12. PMID: 12150992
Yin, Y., Tainsky, M.A., Bischoff, F.Z., Strong, L.C. and Wahl, G.M., 1992. Wild-type p53 restores cell cycle control and inhibits gene amplification in cells with mutant p53 alleles. Cell, 70(6), pp.937-948. PMID: 1525830
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