Abcam, ab32389, Anti-p53 antibody [E26]

Size: 20µL / 100µL / 50µL / 1mL
Anti-p53 antibody [E26] (ab32389) is a rabbit monoclonal antibody detecting p53 in Western Blot, Flow Cytometry, IHC-P, ICC/IF . Suitable for Human . - KO validated for confirmed specificity - Biophysical QC for unrivalled batch-batch consistency - Over 110 publications - Trusted since 2006
Key facts
Host species:Rabbit,
Clonality:Monoclonal,
Clone number:E26,
Isotype:IgG,
Carrier free:No,
Reacts with:Human,
Applications:ICC/IF, Flow Cyt, WB, IHC-PSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Immunogen:The exact immunogen used to generate this antibody is proprietary information.,
Specificity:The antibody should recognize human wild-type and mutant p53.

Product details:
What is this antibody validated in?
Anti-p53 antibody [E26] (ab32389) is a rabbit recombinant monoclonal antibody and is validated for use in Western Blot (WB), Flow Cytometry (Flow Cyt), Immunohistochemistry (IHC-P), Immunocytochemistry/immunofluorescence (ICC/IF) in Human samples.
What is the molecular weight of p53?
Anti-p53 [E26] (ab32389) specifically detects a band for p53 (UniProt: P04637) at a molecular weight of 44kDa.
Trusted by the scientific community
Anti-p53 [E26] (ab32389) was first used in a scientific publication in 2006 and has been cited over 110 times in peer-reviewed journals.
Trial sizes available!
Test your antibody or perform pre-screening before committing to a larger quantity. Sold in 10µl.
Discover our selection of trial-size antibodies
Specificity confirmed
The specificity of Anti-p53 antibody [E26] (ab32389) has been confirmed by Western blot testing in TP53 Knockout HAP1 cells.
Other related products
We have a range of other formats of antibody clone [E26] also available for your convenience: ab32389, Alexa Fluor® 647 -
ab224942
, Alexa Fluor® 488 -
ab224943
, Carrier free -
ab225531
, APC -
ab310855
, PE -
ab310924
, Alexa Fluor® 594 -
ab311727
, Alexa Fluor® 568 -
ab313004
, Alexa Fluor® 555 -
ab313208
, Alexa Fluor® 750 -
ab321599
Patented technology
Our RabMAb
technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to
RabMAb® patents
What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:
- High batch-to-batch consistency and reproducibility
- Improved sensitivity and specificity
- Long-term security of supply
- Animal-free batch production
For more information, read more on
recombinant antibodies

Properties and Storage Information:
Form-Liquid, Purification technique-Affinity purification Protein A, Storage buffer-pH: 7.2 - 7.4Preservative: 0.01% Sodium azideConstituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA, Shipped at conditions-Blue Ice, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C, Aliquoting information-Upon delivery aliquot, Storage information-Avoid freeze / thaw cycle

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
The protein p53 also known as TP53 or tumor protein p53 has a molecular weight of approximately 53 kDa. It acts as a transcription factor and plays a major role in cell cycle regulation apoptosis and maintaining genomic stability. This protein mainly expresses in the nucleus of cells and acts as a critical regulator of cellular responses to stress signals including DNA damage. Scientists commonly use p53 antibodies in various assays like western blot and p53 immunofluorescence to detect and study its expression and functional status in cells.
Biological function summary
P53 functions to control cell division and apoptosis serving as a guardian of the genome by preventing mutation accumulation. It does not form part of a larger complex under normal conditions but interacts with various other molecules to execute its functions. p53 can activate or suppress the transcription of numerous genes involved in cell cycle arrest DNA repair and programmed cell death allowing it to halt the progression of damaged cells and trigger repair mechanisms or eliminate those that cannot be repaired.
Pathways
P53 acts within several key biological pathways such as the p53 signaling pathway and the intrinsic apoptotic pathway. Its activity involves interaction with proteins like MDM2 which regulates p53 through ubiquitin-mediated degradation and ATM kinase which phosphorylates p53 in response to DNA damage. These interactions ensure appropriate cellular responses during stress and are vital for maintaining homeostasis.
P53 mutation or inactivation is often associated with the development of cancer given its role in controlling cell division and preventing tumor formation. Specifically its dysfunction has been linked to cancers such as breast cancer and lung cancer. Additionally p53 can interact with other mutant proteins like Ras compounding mutations that contribute to tumor progression and aggressive cancer phenotypes. Understanding these interactions and the status of p53 can be important in developing targeted cancer therapies.