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AB21083

Anti-53BP1 antibody

5

(5 Reviews)

|

(125 Publications)

Rabbit Polyclonal 53BP1 antibody. Suitable for ICC/IF, IHC-P, WB and reacts with Human, Mouse samples. Cited in 125 publications. Immunogen corresponding to Synthetic Peptide within Human TP53BP1.

View Alternative Names

TP53-binding protein 1, 53BP1, p53-binding protein 1, p53BP1, TP53BP1

9 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-53BP1 antibody (AB21083)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-53BP1 antibody (AB21083)

Immunohistochemical analysis of paraffin-embedded human breast carcinoma tissue stained for 53BP1 protein at nucleus with ab21083 at a 1/500 dilution.

Antigen retrieval : Citrate buffer, pH 6.0, 15 min

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-53BP1 antibody (AB21083)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-53BP1 antibody (AB21083)

Immunohistochemical analysis of paraffin-embedded human breast carcinoma tissue stained for 53BP1 protein at nucleus with ab21083 at a 1/1000 dilution.

Antigen retrieval : Citrate buffer, pH 6.0, 15 min

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-53BP1 antibody (AB21083)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-53BP1 antibody (AB21083)

Immunohistochemical analysis of paraffin-embedded human breast carcinoma tissue labeling 53BP1 with ab21083 at 1/4000 dilution. Nuclear staining is observed. Antigen Retrieval : Citrate buffer, pH 6.0, 15 min.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-53BP1 antibody (AB21083)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-53BP1 antibody (AB21083)

Immunohistochemical analysis of paraffin-embedded human colon cancer tissue labeling 53BP1 with ab21083 at 1/4000 dilution. Nuclear staining is observed. Antigen Retrieval : Citrate buffer, pH 6.0, 15 min.

Immunocytochemistry/ Immunofluorescence - Anti-53BP1 antibody (AB21083)
  • ICC/IF

Supplier Data

Immunocytochemistry/ Immunofluorescence - Anti-53BP1 antibody (AB21083)

Immunofluorescence analysis of HeLa cells fixed in ice-cold MeOH for 5 min labelling 53BP1 protein at nucleus using ab21083 at a 1/500 dilution (Green). alpha Tubulin, a cytoskeleton marker, stained by an anti-alpha Tubulin antibody at a 1/500 dilution (Red).
Scale bar= 10 µm.

Western blot - Anti-53BP1 antibody (AB21083)
  • WB

Supplier Data

Western blot - Anti-53BP1 antibody (AB21083)

Blocking and diluting buffer and concentration : 5% NFDM/TBST.

The molecular weight observed is consistent with what has been described in the literature (PMID : 15840649).

In Western blot, anti-53BP1 antibody (ab320755, left) and (ab21083, right) were used at 1/1000.

In Western blot, Anti-Vinculin antibody [EPR8185] (ab129002) staining at 1/10000 dilution.

All lanes:

Western blot - Anti-53BP1 antibody [RM1222] (<a href='/en-us/products/primary-antibodies/53bp1-antibody-rm1222-ab320755'>ab320755</a>) at 1/1000 dilution

Lane 1:

Human placenta tissue lysate at 40 µg

Lane 2:

Human testis tissue lysate at 40 µg

Lane 3:

Mouse liver tissue lysate at 20 µg

Lane 4:

Mouse placenta tissue lysate at 20 µg

Lane 5:

Rat brain tissue lysate at 20 µg

Secondary

All lanes:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/100000 dilution

Observed band size: 350 kDa,124 kDa

false

Exposure time: 180s

Western blot - Anti-53BP1 antibody (AB21083)
  • WB

Supplier Data

Western blot - Anti-53BP1 antibody (AB21083)

5% SDS-PAGE

All lanes:

Western blot - Anti-53BP1 antibody (ab21083) at 1/500 dilution

Lane 1:

53BP1 shRNA non-transfected HeLa whole cell extracts at 50 µg

Lane 2:

53BP1 shRNA transfected HeLa whole cell extracts at 50 µg

Secondary

All lanes:

HRP-conjugated anti-rabbit IgG antibody

Predicted band size: 214 kDa

Observed band size: 350 kDa

false

Western blot - Anti-53BP1 antibody (AB21083)
  • WB

Supplier Data

Western blot - Anti-53BP1 antibody (AB21083)

Blocking and diluting buffer and concentration : 5% NFDM/TBST.

The molecular weight observed is consistent with what has been described in the literature (PMID : 15840649).

In Western blot, anti-53BP1 antibody (ab320755, left) and (ab21083, right) were used at 1/1000. A band was observed at 350 kDa in wild-type HAP1 cell lysates whereas no signal was observed at this size in the 53BP1 knockout cell line.

In Western blot, Anti-Vinculin antibody [EPR8185] (ab129002) staining at 1/10000 dilution.

All lanes:

Western blot - Anti-53BP1 antibody [RM1222] (<a href='/en-us/products/primary-antibodies/53bp1-antibody-rm1222-ab320755'>ab320755</a>) at 1/1000 dilution

Lane 1:

Wild-type HAP1 (human chronic myelogenous leukemia near-haploid cell) whole cell lysate at 20 µg

Lane 2:

53BP1 knockout HAP1 whole cell lysate at 20 µg

Secondary

All lanes:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/100000 dilution

Observed band size: 350 kDa,124 kDa

false

Exposure time: 26s

Western blot - Anti-53BP1 antibody (AB21083)
  • WB

Supplier Data

Western blot - Anti-53BP1 antibody (AB21083)

5% SDS-PAGE

All lanes:

Western blot - Anti-53BP1 antibody (ab21083) at 1/500 dilution

Lane 1:

Neuro2A whole cell extracts at 30 µg

Lane 2:

C8D30 whole cell extracts at 30 µg

Lane 3:

NIH-3T3 whole cell extracts at 30 µg

Secondary

All lanes:

HRP-conjugated anti-rabbit IgG antibody

Predicted band size: 214 kDa

Observed band size: 350 kDa

false

Key facts

Host species

Rabbit

Clonality

Polyclonal

Isotype

IgG

Carrier free

No

Reacts with

Mouse, Human

Applications

ICC/IF, IHC-P, WB

applications

Immunogen

Synthetic Peptide within Human TP53BP1. The exact immunogen used to generate this antibody is proprietary information.

Q12888

Reactivity data

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Properties and storage information

Form
Liquid
Purification technique
Affinity purification Immunogen
Storage buffer
pH: 7 Preservative: 0.025% Proclin 300 Constituents: PBS, 20% Glycerol (glycerin, glycerine)
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.

53BP1 also known as p53-binding protein 1 is a protein that plays an important role in DNA damage response. The 53BP1 protein has a molecular weight of approximately 213 kDa. It is a nuclear protein and it mainly expresses in cells during the DNA damage repair processes. Researchers commonly utilize immunofluorescence and anti-53BP1 antibodies to detect its presence especially for studying DNA repair mechanisms. 53BP1 proves important for maintenance of genomic stability.
Biological function summary

As a DNA damage response mediator 53BP1 functions to recognize and bind to sites of double-strand breaks in DNA promoting non-homologous end joining (NHEJ). This protein is a component of a larger protein complex that recruits factors necessary for DNA repair. Its interaction with DNA lesions also involves chromatin remodeling aiming to facilitate successful repair of the DNA. 53BP1 works in concert with other proteins such as H2AX and MDC1.

Pathways

Researchers observe 53BP1 in processes such as the DNA damage checkpoint and repair pathways. This protein significantly contributes to the pathways involved in maintaining cell cycle checkpoints. It interacts with proteins like ATM and BRCA1 coordinating the cellular response to DNA damage and ensuring that genomic integrity checks occur properly before cell cycle progression continues. These interactions place 53BP1 at a pivotal position in decision-making between repair pathways.

Researchers often focus on 53BP1's involvement in cancer development and therapy resistance due to its role in DNA repair. Alterations or deficiencies in 53BP1 levels can contribute to increased susceptibility to tumor development affecting processes like breast cancer and ovarian cancer through its relationship with BRCA1. The improper function of 53BP1 in DNA repair pathways may lead to an accumulation of genetic mutations driving tumorigenesis and impacting the efficacy of certain cancer treatments.

Product protocols

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

Target data

Double-strand break (DSB) repair protein involved in response to DNA damage, telomere dynamics and class-switch recombination (CSR) during antibody genesis (PubMed : 12364621, PubMed : 17190600, PubMed : 21144835, PubMed : 22553214, PubMed : 23333306, PubMed : 27153538, PubMed : 28241136, PubMed : 31135337, PubMed : 37696958). Plays a key role in the repair of double-strand DNA breaks (DSBs) in response to DNA damage by promoting non-homologous end joining (NHEJ)-mediated repair of DSBs and specifically counteracting the function of the homologous recombination (HR) repair protein BRCA1 (PubMed : 22553214, PubMed : 23333306, PubMed : 23727112, PubMed : 27153538, PubMed : 31135337). In response to DSBs, phosphorylation by ATM promotes interaction with RIF1 and dissociation from NUDT16L1/TIRR, leading to recruitment to DSBs sites (PubMed : 28241136). Recruited to DSBs sites by recognizing and binding histone H2A monoubiquitinated at 'Lys-15' (H2AK15Ub) and histone H4 dimethylated at 'Lys-20' (H4K20me2), two histone marks that are present at DSBs sites (PubMed : 17190600, PubMed : 23760478, PubMed : 27153538, PubMed : 28241136). Required for immunoglobulin class-switch recombination (CSR) during antibody genesis, a process that involves the generation of DNA DSBs (PubMed : 23345425). Participates in the repair and the orientation of the broken DNA ends during CSR (By similarity). In contrast, it is not required for classic NHEJ and V(D)J recombination (By similarity). Promotes NHEJ of dysfunctional telomeres via interaction with PAXIP1 (PubMed : 23727112).
See full target information TP53BP1

Publications (125)

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

European biophysics journal : EBJ : PubMed40659933

2025

Specific TP53 mutations impair the recruitment of 53BP1 to DNA double-strand breaks underlying the mechanism of radioresistance.

Applications

Unspecified application

Species

Unspecified reactive species

Paolo Fagherazzi,Lenka Stixová,Eva Bartova

STAR protocols 6:103938 PubMed40638378

2025

Protocol for induction and study of DNA double-strand breaks in mammalian cells using PALM microdissection and expansion microscopy.

Applications

Unspecified application

Species

Unspecified reactive species

Fernando Luna-Maldonado,Diego Oliva-Rico,Alejandro López-Saavedra,Aquetzalli Arenas-Hernández,Clementina Castro-Hernández,Juan Eduardo Rodriguez Gatica,Eloy-Andres Pérez-Yepez,José Díaz-Chávez,Luis A Herrera

Aging cell 24:e70105 PubMed40371663

2025

hTERT Increases TRF2 to Induce Telomere Compaction and Extend Cell Replicative Lifespan.

Applications

Unspecified application

Species

Unspecified reactive species

Nancy Adam,Yang Yang,Mahbod Djamshidi,Sara Seifan,Nicholas S Y Ting,Joel Glover,Nicolas Touret,Paul M K Gordon,K V Vineetha Warriyar,Hokan Krowicki,Christine Kim Garcia,Sharon A Savage,Aaron A Goodarzi,Duncan M Baird,Tara L Beattie,Karl Riabowol

Cancer research 85:2890-2904 PubMed40327605

2025

Combining Multiplexed CRISPR/Cas9-Nickase and PARP Inhibitors Efficiently and Precisely Targets Cancer Cells.

Applications

Unspecified application

Species

Unspecified reactive species

Soyoung Lee,Kyunghwan Kim,Hye-Jin Jeong,Subin Choi,Himchan Cheng,Dayoung Kim,Soomin Heo,Jinhee Mun,Minjong Kim,Eunjin Lee,Yoon Ji Choi,Seon-Gyeong Lee,Eun A Lee,Yewon Jang,Kayeong Lim,Heon Seok Kim,Euihwan Jeong,Seung-Jae Myung,Deok-Beom Jung,Chang Sik Yu,In Ho Song,M Ryan Corces,Joo H Kang,Kyungjae Myung,Taejoon Kwon,Tae-Eun Park,Jinmyoung Joo,Seung Woo Cho

Cancers 17: PubMed40149370

2025

Loss of ING3 in the Prostate Leads to Activation of DNA Damage Repair Markers.

Applications

Unspecified application

Species

Unspecified reactive species

Viktor Lang,Lisa Barones,ShiTing Misaki Hu,Fatemeh Hashemi,Karen Blote,Karl Riabowol,Dieter Fink

PloS one 20:e0313255 PubMed39787145

2025

Knockout of the ING5 epigenetic regulator confirms roles in stem cell maintenance and tumor suppression in vivo.

Applications

Unspecified application

Species

Unspecified reactive species

Buthaina Al Shueili,Arthur Dantas,Etienne Mahe,Tak Ho Chu,Yang Yang,Elodie Labit,Eren Kutluberk,Nicolas Lasaleta,Anand Masson,Hiba Omairi,Kenichi Ito,Roman J Krawetz,Rajiv Midha,Gregory Cairncross,Karl Riabowol

Journal of radiation research 65:628-639 PubMed39174316

2024

In vitro and in silico study of biological effects on cancer cells in the presence of metallic materials during radiotherapy.

Applications

Unspecified application

Species

Unspecified reactive species

Takuya Nagano,Yusuke Matsuya,Atsushi Kaida,Hitomi Nojima,Takuya Furuta,Kaoru Sato,Ryoichi Yoshimura,Masahiko Miura

Molecular therapy. Nucleic acids 35:102274 PubMed39161621

2024

Synergistic combination of RAD51-SCR7 improves CRISPR-Cas9 genome editing efficiency by preventing R-loop accumulation.

Applications

Unspecified application

Species

Unspecified reactive species

Sun-Ji Park,Seo Jung Park,Yang Woo Kwon,Eui-Hwan Choi

Oncology research 32:1335-1346 PubMed39055884

2024

LncRNA HOTAIR promotes DNA damage repair and radioresistance by targeting ATR in colorectal cancer.

Applications

Unspecified application

Species

Unspecified reactive species

Haiqing Hu,Hao Yang,Shuaishuai Fan,Xue Jia,Ying Zhao,Hongrui Li

Nature aging 4:1231-1248 PubMed38951692

2024

Targeting senescence induced by age or chemotherapy with a polyphenol-rich natural extract improves longevity and healthspan in mice.

Applications

Unspecified application

Species

Unspecified reactive species

Sara Zumerle,Miles Sarill,Miriam Saponaro,Manuel Colucci,Liliana Contu,Edoardo Lazzarini,Roberta Sartori,Camilla Pezzini,Anna Rinaldi,Anna Scanu,Jacopo Sgrignani,Patrizia Locatelli,Marianna Sabbadin,Aurora Valdata,Daniela Brina,Isabella Giacomini,Beatrice Rizzo,Alessandra Pierantoni,Saman Sharifi,Silvia Bressan,Claudia Altomare,Yulia Goshovska,Chiara Giraudo,Roberto Luisetto,Luca Iaccarino,Cristina Torcasio,Simone Mosole,Emiliano Pasquini,Andrea Rinaldi,Laura Pellegrini,Gregorio Peron,Matteo Fassan,Stefano Masiero,Andrea Maria Giori,Stefano Dall'Acqua,Johan Auwerx,Pietro Cippà,Andrea Cavalli,Marco Bolis,Marco Sandri,Lucio Barile,Monica Montopoli,Andrea Alimonti
View all publications

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