ANTIBODIES

Contributor Information
- Name David Lane
- Institute University of Dundee
- Primary citation Vojtesek et al. 1992. J Immunol Methods. 151(1-2):237-44. PMID: 1378473.
Tool Details
- Tool name: Anti-p53 [Pab DO-1]
- Alternate names: P53, Trp53, pantropic
- Clone: Pab DO-1
- Tool type: Antibodies
- Tool sub-type: Primary antibody
- Class: Monoclonal
- Conjugate: Unconjugated
- Reactivity: Human
- Host: Mouse
- Molecular weight of the target: 53 kDa
- Application: ChIP ; IHC ; IF ; IP ; WB
- Strain: Balb/c
- Description: A monoclonal p53 antibody, the epitope recognised is in the N terminus of p53. DO-1 recognises wild-type and mutant p53. DO-1 recognises three of the p53 isoforms (p53, p53β, p53γ).
- Immunogen: Recombinant human wild type p53 protein expressed in E.coli
- Immunogen UniProt ID: P04637
- Isotype: IgG2a
- Research area: Apoptosis and autophagy; Cancer; Cell biology; Genetics
- Myeloma used: Sp2/0-Ag14
- For Research Use Only
Target Details
- Target: p53 (N terminus)
- Target molecular weight: 53 kDa
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Target background: p53 is a crucial tumour suppressor involved in over 50% of cancers. It acts as a stress-responsive transcription factor and plays a vital role in regulating cell cycle arrest, promoting apoptosis, maintaining genomic stability, controlling the cell cycle, and inhibiting angiogenesis. Known as the "guardian of the genome," p53 prevents gene mutations.
Mutations in the p53 gene are common in human cancers, resulting in dysfunctional proteins unable to bind to DNA. This loss of function compromises p53's tumour suppressor activity. While p53 is typically found in low levels in healthy cells due to its short lifespan, disease states lead to increased expression driven by somatic mutations. This heightened expression is believed to contribute to cellular transformation and malignancy.
Twelve isoforms of p53 have been described: p53Îą, p53β, p53Îł, Î40p53Îą, Î40p53β, Î40p53Îł, Î133p53Îą, Î133p53β, Î133p53Îł, Î160p53Îą, Î160p53β, and Î160p53Îł. Depending on the location of the epitope, antibodies may detect different isoforms of p53. Mutations to p53 can cause conformational changes that expose different epitopes.
This antibody was created by David Lane, who also discovered p53, to measure p53 in various analyses of different tissue samples. Anti-p53 DO-1 has been used frequently for staining sections, it can be used on frozen sections as well as methacarn or formol saline fixed paraffin sections. DO-1 recognises an epitope on the N terminus region of p53, between aa 20-25. DO-1 recognises both wild-type and mutant p53. DO-1 recognises three of the p53 isoforms (p53, p53β, p53γ).
Application Details
- Application: ChIP ; IHC ; IF ; IP ; WB
Handling
- Format: Liquid
- Concentration: 1 mg/ml
- Storage buffer: PBS with 0.02% azide
- Storage conditions: Store at -20°C frozen. Avoid repeated freeze / thaw cycles
- Shipping conditions: Shipping at 4°C
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References
- • Choi et al. 2018. Proc Natl Acad Sci U S A. 115(42):10666-10671. PMID: 30266789.
- • Choi et al. 2018. Cell Death Dis. 9(6):633. PMID: 29795372.
- • Ghosh et al. 2018. Elife. 7:. PMID: 29474172.
- • Rizzo et al. 2016. Nucleic Acids Res. :. PMID: 27923994.
- • Beckerman et al. 2016. Cell Cycle. :1-14. PMID: 27210019.
- • Ilhan et al. 2016. J Vet Diagn Invest. :. PMID: 27016721.
- • Berges et al. 2016. Immunol Res. :. PMID: 26724940.
- • Kloet et al. 2015. Biochem J. 469(2):289-98. PMID: 25990325.
- • Loughery et al. 2014. Nucleic Acids Res. 42(12):7666-80. PMID: 24928858.
- • Llanos et al. 2001. Nat Cell Biol. 3(5):445-52. PMID: 11331871.
- • Stephen et al. 1995. J Mol Biol. 248(1):58-78. PMID: 7537340.
- • Vojtesek et al. 1992. J Immunol Methods. 151(1-2):237-44. PMID: 1378473.