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CBL404

Sigma-Aldrich

Anti-p53 Antibody, aa 211-220, clone240

clone PAb240, Chemicon®, from mouse

Synonym(s):

Anti-p53 antibody

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

mouse

Quality Level

antibody form

purified antibody

antibody product type

primary antibodies

clone

PAb240, monoclonal

species reactivity

hamster, monkey, mouse, chicken, human, rat, bovine

manufacturer/tradename

Chemicon®

technique(s)

immunohistochemistry: suitable
immunoprecipitation (IP): suitable
western blot: suitable

isotype

IgG1

suitability

not suitable for immunohistochemistry (Paraffin)

NCBI accession no.

UniProt accession no.

shipped in

wet ice

Gene Information

human ... TP53(7157)

General description

p53 was discovered in 1979 as a cellular protein associating with the transforming protein of SV40 tumor virus. Since then, many different biochemical functions have been attributed to the 53 kD phosphoprotein. Experimental evidence has suggested that p53 acts as a negative regulator of cell growth in normal cells (Finlay, 1989). Thus, the inactivation or mutation of p53 may be an essential step in the development of malignancy (Lane and Benchmol, 1990). Wild-type p53 levels in normal cells and tissues were found to be very low. Mutant p53 polypeptide, however, is often found to be present at high concentrations in mammalian tumors and tumor cell lines. For example, in an immuno-histochemistry study 40% of human breast cancer showed elevated levels of mutant p53 in the cell nucleus. Mutations of the p53 protein have some characteristic features:

a) Most of them are missense point mutations giving rise to an altered protein function.

b) Many -but not all- mutant p53 proteins exhibit a common mutant structure, which can be recognized by monoclonal antibodies specific for p53 in the mutant conformation.

Specificity

PAb 240 recognizes an epitope of p53 tumor suppressor protein between amino acids 211 and 220 (Gannon, 1990; Legros, 1994) in human, mouse, rat, hamster, monkey, cow and chicken. Assaying native samples (immunoprecipitation, ELISA) the PAb 240 detects only the mutant forms of p53 (Gannon, 1990; Said, 1994). In methods using denatured samples [Western blot analysis (Gannon, 1990) and immunohistochemistry of frozen tissue sections (Said, 1994; Bartek, 1991; Walker, 1991)], the PAb 240 recognizes both mutant and denatured wild-type p53.

Immunogen

Epitope: aa 211-220
Murine p53-beta galactosidase fusion protein expressed in E. coli.

Application

Detect p53 with Anti-p53 Antibody, aa 211-220, clone240 (Mouse Monoclonal Antibody), that has been shown to work in IP, WB & IHC.
Detection of p53 oncogene protein

Detection of mutant p53

Prevalence of detection using CBL 404

-50% colon carcinoma sections positive (30 samples)

-70% lung carcinoma sections positive (50 samples)

-30% carcinoma breast samples positive (50 samples)

Normal and pre-malignant tissues negative

Reacts on methacarn fixed tissue

Optimal working dilutions must be determined by the end user.
Research Category
Epigenetics & Nuclear Function
Research Sub Category
Transcription Factors

Linkage

Replaces: 04-1083

Physical form

Format: Purified
Purified mouse monoclonal in buffer containing 0.1M Tris-glycine (pH 7.4), 0.15M NaCl, with 0.05% sodium azide. We recommend that each laboratory determine an optimum working titre for use in its particular application.

Storage and Stability

For use within 1 month of purchase store at +4°C, for long term storage aliquot antibody into small volumes and store at -20°C.

Legal Information

CHEMICON is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Eric Chekwube Aniogo et al.
Molecules (Basel, Switzerland), 26(23) (2021-12-11)
Multidrug resistance (MDR) has posed a significant threat to cancer treatment and has led to the emergence of a new therapeutic regime of photodynamic therapy (PDT) to curb the menace. The PDT modality employs a photosensitiser (PS), excited at a
Wei Liu et al.
Bioscience reports, 40(2) (2020-01-07)
Parietal cells of the gastric mucosa contain a complex and extensive secretory membrane system that harbors gastric H+, K+-adenosine triphosphatase (ATPase), the enzyme primarily responsible for gastric lumen acidification. Here, we describe the characterization of mice deficient in the H+
Activating mutations in p53 produce a common conformational effect. A monoclonal antibody specific for the mutant form.
Gannon, J V, et al.
The Embo Journal, 9, 1595-1602 (1990)
Linear antigenic sites defined by the B-cell response to human p53 are localized predominantly in the amino and carboxy-termini of the protein.
Legros, Y, et al.
Oncogene, 9, 2071-2076 (1994)
Xiao-Yu Wang et al.
Scientific reports, 5, 18321-18321 (2015-12-17)
High glucose levels induced by maternal diabetes could lead to defects in neural crest development during embryogenesis, but the cellular mechanism is still not understood. In this study, we observed a defect in chick cranial skeleton, especially parietal bone development

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