p53 (TP53) pSer20 Rabbit Polyclonal Antibody

CAT#: AP20897PU-N

p53 (TP53) pSer20 rabbit polyclonal antibody, Aff - Purified

Product Images

Western blot (WB) analysis of p-P53 antibody (Cat.-No.: AP20897PU-N) in extracts from COS7 cells.

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  Immunohistochemistry (IHC) analyzes of p-P53 antibody (Cat.-No.: AP20897PU-N) in paraffin-embedded human breast carcinoma tissue.

Specifications

Product Data

• Applications: IHC, WB
• Recommended Dilution: Western blot: 1/500 - 1/1000.
  Immunohistochemistry on paraffin sections: 1/50 - 1/200.
• Reactivities: Human, Mouse
• Host: Rabbit
• Clonality: Polyclonal
• Specificity: This antibody detects endogenous levels of p-P53 protein only when phosphorylated at Ser20.
• Formulation: Phosphate buffered saline (PBS), pH 7.2.
  State: Aff - Purified
  State: Liquid purified Ig fraction
  Preservative: 0.05% sodium azide
• Concentration: 1.0 mg/ml
• Purification: Affinity chromatography (> 95% (by SDS-PAGE)
• Storage: Store undiluted at 2-8°C for one month or (in aliquots) at -20°C for longer.
  Avoid repeated freezing and thawing.
• Stability: Shelf life: one year from despatch.
• Predicted Protein Size: ~53,43 kDa
• Gene Name: Homo sapiens tumor protein p53 (TP53), transcript variant 1
• Database Link:
  Entrez Gene 22059 MouseEntrez Gene 7157 Human
• Background: p53 is a DNA-binding, oligomerization domain- and transcription activation domain-containing tumor suppressor that upregulates growth arrest and apoptosis-related genes in response to stress signals, thereby influencing programmed cell death, cell differentiation and cell cycle control mechanisms. p53 localizes to the nucleus yet can be chaperoned to the cytoplasm by the negative regulator MDM2, an E3 ubiquitin ligase that is upregulated in the presence of active p53, where MDM2 polyubiquitinates p53 for proteasome targeting. p53 can assemble into tetramers in the absence of DNA, fluctuates between latent and active (DNA-binding) conformations, and is differentially activated through posttranslational modifications including phosphorylation and acetylation. Mutations in the DNA-binding domain (DBD) (amino acids 110-286) of p53 can compromise energetically favorable association with cis elements and are implicated in several human cancers. Phosphorylation of p53 at residue Thr 155 is mediated by the COP9 signalosome (CSN) and targets p53 to ubiquitin-26S Proteasome-dependent degradation.
• Synonyms: Cellular tumor antigen p53, Tumor suppressor p53, Phosphoprotein p53, NY-CO-13

Reference Data

• Protein Families: Druggable Genome, Stem cell - Pluripotency, Transcription Factors
• Protein Pathways: Amyotrophic lateral sclerosis (ALS), Apoptosis, Basal cell carcinoma, Bladder cancer, Cell cycle, Chronic myeloid leukemia, Colorectal cancer, Endometrial cancer, Glioma, Huntington's disease, MAPK signaling pathway, Melanoma, Neurotrophin signaling pathway, Non-small cell lung cancer, p53 signaling pathway, Pancreatic cancer, Pathways in cancer, Prostate cancer, Small cell lung cancer, Thyroid cancer, Wnt signaling pathway