Anti-p53 antibody (ab131442) is a rabbit polyclonal antibody detecting p53 in Western Blot, IHC-P. Suitable for Human, Mouse, Rat.
- KO validated for confirmed specificity
- Over 260 publications
View Alternative Names
P53, TP53, Cellular tumor antigen p53, Antigen NY-CO-13, Phosphoprotein p53, Tumor suppressor p53
- WB
Lab
Western blot - Anti-p53 antibody (AB131442)
Lanes 1 - 6 : Merged signal (red and green). Green - ab131442 observed at 53 kDa. Red - loading control ab8245 (Mouse anti-GAPDH antibody [6C5]) observed at 37 kDa.
ab131442 was shown to react with p53 in wild-type HAP1 cells in Western blot with loss of signal observed in TP53 knockout sample. Wild-type HAP1 and TP53 knockout cell lysates were subjected to SDS-PAGE. Membranes were blocked in fluorescent western blot (TBS-based) blocking solution before incubation with ab131442 and ab8245 (Mouse anti-GAPDH antibody [6C5]) overnight at 4 °C at a 1 in 1000 dilution and a 1 in 20000 dilution respectively. Blots were incubated with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed (ab216776) secondary antibodies at 1 in 20000 dilution for 1 h at room temperature before imaging.
All lanes:
Western blot - Anti-p53 antibody (ab131442) at 1/1000 dilution
Lane 1:
Saos-2 (p53 null) cell lysate at 20 µg
Lane 2:
HL-60 (p53 null) cell lysate at 20 µg
Lane 3:
MCF7 (wildtype p53) cell lysate at 20 µg
Lane 4:
A431 (mutant p53) cell lysate at 20 µg
Lane 5:
Wild-type HAP1 cell lysate at 20 µg
Lane 6:
TP53 knockout HAP1 cell lysate at 20 µg
Predicted band size: 43 kDa
Observed band size: 53 kDa
false
- IHC-P
Supplier Data
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-p53 antibody (AB131442)
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Human stomach cancer tissue labeling p53 with ab131442 at 1/200 dilution (overnight at 4°C). Heat mediated antigen retrieval was performed using Sodium citrate buffer pH 6 (>98°C, 20 minutes). Secondary antibody was used at 1/200 dilution for 30 minutes at room temperature.
Negative control : Secondary antibody only.
- IHC-P
Supplier Data
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-p53 antibody (AB131442)
Immunohistochemical analysis of paraffin-embedded human liver tissue labeling p53 with ab131442 at 1/200 (4°C, overnight). Cy3 labeled secondary antibody was diluted at 1/300 and incubated for 50 minutes at room temperature (red). Nuclei stained with DAPI (blue).
- IHC-P
Supplier Data
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-p53 antibody (AB131442)
Immunohistochemical analysis of paraffin-embedded human lung tissue labeling p53 with ab131442 at 1/200 (4°C, overnight). Cy3 labeled secondary antibody was diluted at 1/300 and incubated for 50 minutes at room temperature (red). Nuclei stained with DAPI (blue).
- IHC-P
Supplier Data
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-p53 antibody (AB131442)
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Human lung cancer tissue labeling p53 with ab131442 at 1/200 dilution (overnight at 4°C). Heat mediated antigen retrieval was performed using Sodium citrate buffer pH 6 (>98°C, 20 minutes). Secondary antibody was used at 1/200 dilution for 30 minutes at room temperature.
Negative control : Secondary antibody only.
- IHC-P
Supplier Data
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-p53 antibody (AB131442)
Immunohistochemical analysis of paraffin-embedded mouse liver tissue labeling p53 with ab131442 at 1/200 (4°C, overnight). Cy3 labeled secondary antibody was diluted at 1/300 and incubated for 50 minutes at room temperature (red). Nuclei stained with DAPI (blue).
- IHC-P
Supplier Data
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-p53 antibody (AB131442)
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Rat spleen tissue labeling p53 with ab131442 at 1/200 dilution (overnight at 4°C). Heat mediated antigen retrieval was performed using Sodium citrate buffer pH 6 (>98°C, 20 minutes). Secondary antibody was used at 1/200 dilution for 30 minutes at room temperature.
Negative control : Secondary antibody only.
- IHC-P
Supplier Data
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-p53 antibody (AB131442)
Immunohistochemical analysis of paraffin-embedded mouse kidney tissue labeling p53with ab131442 at 1/200 (4°C, overnight). Sodium citrate pH 6.0 was used for antibody retrieval (>98°C, 20 min). Secondary antibody was diluted at 1/200 (RT, 30min).
Negative control was used by secondary antibody only.
- IHC-P
Supplier Data
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-p53 antibody (AB131442)
Immunohistochemical analysis of paraffin-embedded mouse liver tissue labeling p53with ab131442 at 1/200 (4°C, overnight). Sodium citrate pH 6.0 was used for antibody retrieval (>98°C, 20 min). Secondary antibody was diluted at 1/200 (RT, 30min).
Negative control was used by secondary antibody only.
- IHC-P
Supplier Data
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-p53 antibody (AB131442)
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Mouse testis tissue labeling p53 with ab131442 at 1/200 dilution (overnight at 4°C). Heat mediated antigen retrieval was performed using Sodium citrate buffer pH 6 (>98°C, 20 minutes). Secondary antibody was used at 1/200 dilution for 30 minutes at room temperature.
Negative control : Secondary antibody only.
- WB
Lab
Western blot - Anti-p53 antibody (AB131442)
Lanes 1 - 4 : Merged signal (red and green). Green - ab131442 observed at 53 kDa. Red - loading control, ab8245, observed at 37 kDa.
Wild-type and p53 knockout samples were subjected to SDS-PAGE. ab131442 and ab8245 (Mouse anti-GAPDH loading control) were incubated overnight at 4°C at 1/1000 dilution and 1/20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed ab216773 and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed ab216776 secondary antibodies at 1/20000 dilution for 1 hour at room temperature before imaging.
Other recommended antibodies to this target are ab32389 and ab26.
All lanes:
Western blot - Anti-p53 antibody (ab131442) at 1/500 dilution
Lane 1:
Wild type HAP1 whole cell lysate (20 µg)
Lane 2:
p53 knockout HAP1 whole cell lysate (20 µg)
Lane 3:
Saos2 (20 µg)
Lane 4:
A431 (20 µg)
Predicted band size: 43 kDa,53 kDa
false
- WB
Supplier Data
Western blot - Anti-p53 antibody (AB131442)
Loading control : Beta actin monoclonal antibody (5B7) at 1/5000 dilution followed by Dylight 680 secondary antibody at 1/10000 dilution (red).
Primary antibodies incubated overnight at 4°C.
Secondary antibodies incubated for 1 hour at 37°C.
All lanes:
Western blot - Anti-p53 antibody (ab131442) at 1/1000 dilution
All lanes:
Lysate from p53 knockout A431 (human epidermoid carcinoma cell line) cells
Secondary
All lanes:
Dylight 800 secondary antibody (green) at 1/10000 dilution
Predicted band size: 43 kDa
false
- WB
Supplier Data
Western blot - Anti-p53 antibody (AB131442)
Western blot analysis showing p53 expression in wild-type and p53 shRNA knockout in rat PC-12 cells. Beta-actin served as the loading control.
This analysis shows the antibodies specificity due to detection in the endogenous p53 protein in wild-type but not in shRNA knockdown cell lysate.
The lower band may represent the physiologically degraded p53 protein
All lanes:
Western blot - Anti-p53 antibody (ab131442)
Lane 1:
Wild-type PC-12 (Rat adrenal gland pheochromocytoma cell line) cells
Lane 2:
p53 shRNA knockout PC-12 (Rat adrenal gland pheochromocytoma cell line) cells
Predicted band size: 43 kDa
false
Reactivity data
Product details
Anti-p53 antibody (ab131442) is a rabbit polyclonal antibody and is validated for use in IHC-P, WB in human, mouse, rat samples.
Anti-p53 antibody (ab131442) specifically detects p53 (UniProt ID: P04637; Molecular weight: 44kDa) and is sold in 100 µg selling sizes.
Quality and Validation
Abcam's high quality validation processes ensure Anti-p53 antibody (ab131442) has high sensitivity and specificity.
The specificity of Anti-p53 antibody (ab131442) has been confirmed by testing in knockout samples.
Anti-p53 antibody (ab131442) has been cited over 266 times in peer reviewed journals and is trusted by the scientific community.
Anti-p53 antibody (ab131442) has 6 independent reviews from customers.
Properties and storage information
Form
Purification technique
Purification notes
Storage buffer
Shipped at conditions
Appropriate short-term storage conditions
Appropriate long-term storage conditions
Supplementary information
This supplementary information is collated from multiple sources and compiled automatically.
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.
Product protocols
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Target data
Publications (330)
Recent publications for all applications. Explore the full list and refine your search
Journal of orthopaedic translation 52:192-208 PubMed40698064
2025
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The Tohoku journal of experimental medicine : PubMed40670090
2025
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Frontiers in pharmacology 16:1636149 PubMed40642010
2025
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Nature communications 16:5392 PubMed40562785
2025
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Neoplasia (New York, N.Y.) 66:101179 PubMed40409044
2025
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Clinical and experimental pharmacology & physiology 52:e70036 PubMed40205608
2025
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Virology journal 22:32 PubMed39923063
2025
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Oncology research 33:465-475 PubMed39866239
2025
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Drug development research 86:e70044 PubMed39799560
2025
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Molecular medicine (Cambridge, Mass.) 30:238 PubMed39614149
2024
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Product promise
Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.
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