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AB131442

Anti-p53 antibody

4

(7 Reviews)

|

(330 Publications)

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

13 Images
Western blot - Anti-p53 antibody (AB131442)
  • 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

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-p53 antibody (AB131442)
  • 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.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-p53 antibody (AB131442)
  • 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).

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-p53 antibody (AB131442)
  • 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).

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-p53 antibody (AB131442)
  • 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.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-p53 antibody (AB131442)
  • 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).

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-p53 antibody (AB131442)
  • 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.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-p53 antibody (AB131442)
  • 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.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-p53 antibody (AB131442)
  • 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.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-p53 antibody (AB131442)
  • 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.

Western blot - Anti-p53 antibody (AB131442)
  • 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

Western blot - Anti-p53 antibody (AB131442)
  • 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

Western blot - Anti-p53 antibody (AB131442)
  • 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

Key facts

Host species

Rabbit

Clonality

Polyclonal

Isotype

IgG

Carrier free

No

Reacts with

Mouse, Rat, Human

Applications

WB, IHC-P

applications

Immunogen

Synthetic Peptide within Human TP53 aa 1-50 conjugated to Keyhole Limpet Haemocyanin. The exact immunogen used to generate this antibody is proprietary information.

P04637

Reactivity data

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Product details

Product Specifications
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
Liquid
Purification technique
Affinity purification
Purification notes
ab131442 was purified by affinity-chromatography using epitope-specific peptide.
Storage buffer
pH: 7.4 Preservative: 0.02% Sodium azide Constituents: PBS, 50% Glycerol (glycerin, glycerine), 0.5% BSA
Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C|-20°C
Appropriate long-term storage conditions
+4°C|-20°C

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.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Multifunctional transcription factor that induces cell cycle arrest, DNA repair or apoptosis upon binding to its target DNA sequence (PubMed : 11025664, PubMed : 12524540, PubMed : 12810724, PubMed : 15186775, PubMed : 15340061, PubMed : 17317671, PubMed : 17349958, PubMed : 19556538, PubMed : 20673990, PubMed : 20959462, PubMed : 22726440, PubMed : 24051492, PubMed : 24652652, PubMed : 35618207, PubMed : 36634798, PubMed : 38653238, PubMed : 9840937). Acts as a tumor suppressor in many tumor types; induces growth arrest or apoptosis depending on the physiological circumstances and cell type (PubMed : 11025664, PubMed : 12524540, PubMed : 12810724, PubMed : 15186775, PubMed : 15340061, PubMed : 17189187, PubMed : 17317671, PubMed : 17349958, PubMed : 19556538, PubMed : 20673990, PubMed : 20959462, PubMed : 22726440, PubMed : 24051492, PubMed : 24652652, PubMed : 38653238, PubMed : 9840937). Negatively regulates cell division by controlling expression of a set of genes required for this process (PubMed : 11025664, PubMed : 12524540, PubMed : 12810724, PubMed : 15186775, PubMed : 15340061, PubMed : 17317671, PubMed : 17349958, PubMed : 19556538, PubMed : 20673990, PubMed : 20959462, PubMed : 22726440, PubMed : 24051492, PubMed : 24652652, PubMed : 9840937). One of the activated genes is an inhibitor of cyclin-dependent kinases. Apoptosis induction seems to be mediated either by stimulation of BAX and FAS antigen expression, or by repression of Bcl-2 expression (PubMed : 12524540, PubMed : 17189187). Its pro-apoptotic activity is activated via its interaction with PPP1R13B/ASPP1 or TP53BP2/ASPP2 (PubMed : 12524540). However, this activity is inhibited when the interaction with PPP1R13B/ASPP1 or TP53BP2/ASPP2 is displaced by PPP1R13L/iASPP (PubMed : 12524540). In cooperation with mitochondrial PPIF is involved in activating oxidative stress-induced necrosis; the function is largely independent of transcription. Induces the transcription of long intergenic non-coding RNA p21 (lincRNA-p21) and lincRNA-Mkln1. LincRNA-p21 participates in TP53-dependent transcriptional repression leading to apoptosis and seems to have an effect on cell-cycle regulation. Implicated in Notch signaling cross-over. Prevents CDK7 kinase activity when associated to CAK complex in response to DNA damage, thus stopping cell cycle progression. Isoform 2 enhances the transactivation activity of isoform 1 from some but not all TP53-inducible promoters. Isoform 4 suppresses transactivation activity and impairs growth suppression mediated by isoform 1. Isoform 7 inhibits isoform 1-mediated apoptosis. Regulates the circadian clock by repressing CLOCK-BMAL1-mediated transcriptional activation of PER2 (PubMed : 24051492).
See full target information TP53

Publications (330)

Recent publications for all applications. Explore the full list and refine your search

Journal of orthopaedic translation 52:192-208 PubMed40698064

2025

Dihydroartemisinin ameliorates hemarthrosis-induced cartilage degeneration by suppressing chondrocyte senescence via activation of Keap1-Nrf2 signaling pathway.

Applications

Unspecified application

Species

Unspecified reactive species

Qinghe Zeng,Yongjia Feng,Haipeng Huang,Kaiao Zou,Wenzhe Chen,Xuefeng Li,Yuliang Huang,Weidong Wang,Wenhua Yuan,Pinger Wang,Peijian Tong,Hongting Jin,Jiali Chen

The Tohoku journal of experimental medicine : PubMed40670090

2025

Drp1-Dependent Mitochondrial Fission is Involved in Adriamycin Resistance in Gastric Cancer Cells: A Perspective from the BATF2/p53/ERK Regulatory Axis.

Applications

Unspecified application

Species

Unspecified reactive species

Wei Yang,Rong Zeng,Jianlin Song,Ning Ma,Wenchuan Zhu,Tianyan Fu,Tingting Zhang,Fabi Li,Bian Wu

Frontiers in pharmacology 16:1636149 PubMed40642010

2025

Molecular mechanisms underlying -derived nanovesicles induced ferroptosis in hepatocellular carcinoma: a dual-pathway analysis of lipid peroxidation and mitochondrial damage.

Applications

Unspecified application

Species

Unspecified reactive species

Ling Wu,Hongyao Chen,Jingting Zhang,Jincheng Tang,Zhibin Wang,Peisen Xue,Wenhui Gao,Renyi Yang,Puhua Zeng

Nature communications 16:5392 PubMed40562785

2025

Obesity drives depot-specific vascular remodeling in male white adipose tissue.

Applications

Unspecified application

Species

Unspecified reactive species

Sana S Hasan,David John,Martina Rudnicki,Ibrahim AlZaim,Daniel Eberhard,Iris Moll,Jacqueline Taylor,Christian Klein,Maximilian von Heesen,Lena-Christin Conradi,Ralf H Adams,Eckhard Lammert,Joanna Kalucka,Christiana Ruhrberg,Stefanie Dimmeler,Andreas Fischer

Neoplasia (New York, N.Y.) 66:101179 PubMed40409044

2025

Twist1-induced suppression of oncogene-induced senescence in non-small cell lung cancer requires the transactivation domain of Twist1.

Applications

Unspecified application

Species

Unspecified reactive species

Audrey Lafargue,Hailun Wang,Sivarajan T Chettiar,Rajendra P Gajula,Amol C Shetty,Yang Song,Brian W Simons,Muhammad Ajmal Khan,Triet Nguyen,Hwai-Wei Tseng,Jinhee Chang,Danielle N Waters,Aaron Chan,Christine Lam,Francesca A Carrieri,Caleb Smack,Nick Connis,Dipanwita Dutta Chowdhury,Katriana Nugent,Ismaeel Siddiqui,Kekoa Taparra,Mohammad Rezaee,Natasha Zachara,Zachary S Morris,Christopher McFarland,Sarki Abba Abdulkadir,Christine L Hann,Phuoc T Tran

Clinical and experimental pharmacology & physiology 52:e70036 PubMed40205608

2025

Electroacupuncture Attenuates Cerebral Ischemia-Reperfusion Injury by Inhibiting Ferroptosis via the p53/SLC7A11 Pathway.

Applications

Unspecified application

Species

Unspecified reactive species

Ziwen Hou,Yaoyao Liu,Qi Wang,Peng Li

Virology journal 22:32 PubMed39923063

2025

Clinical and molecular analysis of JCPyV and BKPyV infection and associated risk of urothelial carcinoma development in the upper tract.

Applications

Unspecified application

Species

Unspecified reactive species

Chun-Nun Chao,Chi-Feng Hung,Wei-Hong Lai,Chun-Liang Tung,Wan-Yun Yeh,Kai-Wu Yang,Meilin Wang,Ya-Yan Lai,Pei-Lain Chen,Cheng-Huang Shen

Oncology research 33:465-475 PubMed39866239

2025

CircRNA circ_0015278 induces ferroptosis in lung adenocarcinoma through the miR-1228/P53 axis.

Applications

Unspecified application

Species

Unspecified reactive species

Liangjiang Xia,Guangbin Li,Qingwu Zhou,Y U Feng,Haitao Ma

Drug development research 86:e70044 PubMed39799560

2025

Naringenin Inhibits Ferroptosis in Renal Tubular Epithelial Cells of Diabetic Nephropathy Through SIRT1/FOXO3a Signaling Pathway.

Applications

Unspecified application

Species

Unspecified reactive species

Yi Zhou,Tianchi Hu,Huarong Zeng,Lin Lin,Huan Xie,Rong Lin,Mengya Huang

Molecular medicine (Cambridge, Mass.) 30:238 PubMed39614149

2024

Melatonin ameliorates age-related sarcopenia by inhibiting fibrogenic conversion of satellite cell.

Applications

Unspecified application

Species

Unspecified reactive species

Guo-Zheng Zhu,Kai Zhao,Hong-Zhou Li,Di-Zheng Wu,Yun-Biao Chen,Dong Han,Jia-Wen Gao,Xing-Yu Chen,Yong-Peng Yu,Zhi-Wei Huang,Chen Tu,Zhao-Ming Zhong
View all publications

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