• Product nameAnti-Rad51 antibody [51RAD01]
    See all Rad51 primary antibodies
  • Description
    Mouse monoclonal [51RAD01] to Rad51
  • Tested applicationsSuitable for: Flow Cyt, WB, IP, ICC/IFmore details
    Unsuitable for: IHC-P
  • Species reactivity
    Reacts with: Mouse, Rat, Human
  • Immunogen

    BALB/C mice were injected with recombinant Rad51 protein.

  • Positive control
    • Testis


  • FormLiquid
  • Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
  • Storage bufferPreservative: 0.05% Sodium azide
    Constituent: 1% BSA
  • Concentration information loading...
  • PurityIgG fraction
  • ClonalityMonoclonal
  • Clone number51RAD01
  • IsotypeIgG1
  • Light chain typekappa
  • Research areas


Our Abpromise guarantee covers the use of ab1837 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
Flow Cyt 1/100.
WB Use at an assay dependent concentration. Predicted molecular weight: 37 kDa.
IP Use at an assay dependent concentration.
ICC/IF 1/10. PMID 18663141
  • Application notesIs unsuitable for IHC-P.
  • Target

    • FunctionPlays an important role in homologous strand exchange, a key step in DNA repair through homologous recombination. Binds to single and double-stranded DNA and exhibits DNA-dependent ATPase activity. Catalyzes the recognition of homology and strand exchange between homologous DNA partners to form a joint molecule between a processed DNA break and the repair template. Binds to single-stranded DNA in an ATP-dependent manner to form nucleoprotein filaments which are essential for the homology search and strand exchange (PubMed:26681308). Part of a PALB2-scaffolded HR complex containing BRCA2 and RAD51C and which is thought to play a role in DNA repair by HR. Plays a role in regulating mitochondrial DNA copy number under conditions of oxidative stress in the presence of RAD51C and XRCC3.
    • Tissue specificityHighly expressed in testis and thymus, followed by small intestine, placenta, colon, pancreas and ovary. Weakly expressed in breast.
    • Involvement in diseaseBreast cancer
      Mirror movements 2
      Defects in RAD51 are found in a patient with microcephaly, mental retardation without bone marrow failure and pediatric cancers.
    • Sequence similaritiesBelongs to the RecA family. RAD51 subfamily.
      Contains 1 HhH domain.
    • DomainThe nuclear localization may reside in the C-terminus (between 259 and 339 AA).
    • Post-translational
      Ubiquitinated by the SCF(FBXO18) E3 ubiquitin ligase complex, regulating RAD51 subcellular location and preventing its association with DNA.
      Phosphorylated. Phosphorylation of Thr-309 by CHEK1 may enhance association with chromatin at sites of DNA damage and promote DNA repair by homologous recombination. Phosphorylation by ABL1 inhibits function.
    • Cellular localizationNucleus. Cytoplasm. Cytoplasm, perinuclear region. Mitochondrion matrix. Cytoplasm, cytoskeleton, microtubule organizing center, centrosome. Colocalizes with RAD51AP1 and RPA2 to multiple nuclear foci upon induction of DNA damage. DNA damage induces an increase in nuclear levels. Together with FIGNL1, redistributed in discrete nuclear DNA damage-induced foci after ionizing radiation (IR) or camptothecin (CPT) treatment. Accumulated at sites of DNA damage in a SPIDR-dependent manner.
    • Information by UniProt
    • Database links
    • Alternative names
      • BRCA1/BRCA2 containing complex, subunit 5 antibody
      • BRCC 5 antibody
      • BRCC5 antibody
      • DNA repair protein RAD51 homolog 1 antibody
      • DNA repair protein rhp51 antibody
      • FANCR antibody
      • hRAD51 antibody
      • HsRAD51 antibody
      • HsT16930 antibody
      • MRMV2 antibody
      • Rad 51 antibody
      • RAD51 antibody
      • RAD51 homolog (RecA homolog, E. coli) (S. cerevisiae) antibody
      • RAD51 homolog A antibody
      • RAD51 homolog antibody
      • RAD51 recombinase antibody
      • RAD51, S. cerevisiae, homolog of antibody
      • RAD51_HUMAN antibody
      • RAD51A antibody
      • RECA antibody
      • RecA like protein antibody
      • RecA, E. coli, homolog of antibody
      • Recombination protein A antibody
      see all

    Anti-Rad51 antibody [51RAD01] images

    • Overlay histogram showing HeLa cells stained with ab1837 (red line). The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab1837, 1/100 dilution) for 30 min at 22ºC. The secondary antibody used was goat anti-mouse DyLight® 488 goat (IgG H+L) (ab96879) at 1/500 dilution for 30 min at 22ºC. Isotype control antibody (black line) was mouse IgG1 [ICIGG1] (ab91353, 2µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed. This antibody gave a positive signal in HeLa cells fixed with 4% paraformaldehyde (10 min)/permeabilized with 0.1% PBS-Tween for 20 min used under the same conditions.

    • Immunofluorescence analysis of wild-type (+/+) and Hormad1-/- (-/-) murine zygotene spermatocytes, staining Rad51 with ab1837.

    References for Anti-Rad51 antibody [51RAD01] (ab1837)

    This product has been referenced in:
    • Carofiglio F  et al. SPO11-independent DNA repair foci and their role in meiotic silencing. PLoS Genet 9:e1003538 (2013). ICC/IF . Read more (PubMed: 23754961) »
    • Somaiah N  et al. The relationship between homologous recombination repair and the sensitivity of human epidermis to the size of daily doses over a 5-week course of breast radiotherapy. Clin Cancer Res 18:5479-88 (2012). ICC/IF ; Human . Read more (PubMed: 22855580) »

    See all 11 Publications for this product

    Product Wall

    Abcam has not validated the combination of species/application used in this Abreview.
    Application Immunocytochemistry/ Immunofluorescence
    Sample Planarian Cell (whole animal IF)
    Permeabilization Yes - tritonX-100
    Specification whole animal IF
    Blocking step Serum as blocking agent for 2 hour(s) and 0 minute(s) · Concentration: 2% · Temperature: 22°C
    Fixative Formaldehyde

    Abcam user community

    Verified customer

    Submitted Jul 20 2016

    Application Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)
    Blocking step Serum as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 10% · Temperature: 25°C
    Antigen retrieval step Heat mediated - Buffer/Enzyme Used: 0.01M citric acid/citrate sodium
    Sample Mouse Tissue sections (mouse testes)
    Specification mouse testes
    Permeabilization No
    Fixative 4% PFA

    Abcam user community

    Verified customer

    Submitted May 29 2013

    That is no problem at all. I am glad to have been of some help. Please do let me know how you get on.

    Thank you for your email. I am sorry i was not able to get back to you yesterday.

    I can confirm we have had no other reports of concerns with the lot of the antibody you have been using. I have therefore arranged for a new vial of this lot to ...

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    Thank you for your reply and for letting me know how you have been getting on.

    I am sorry that my suggestions have not improved the results observed. As you say, especially with the positive results with the rabbit monoclonal ab133534, it may ...

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    Thank you for your reply and confirming those details.

    I think it would be worthwhile to try the different blocking conditions I suggested. Sometimes different antibodies can react quite differently using different blocking conditions. This ca...

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    Thank you for taking time to contact us and report the problems you have encountered in using the Anti-Rad51 antibody [51RAD01] (ab1837). I am sorry to hear that this antibody is not providing satisfactory results.

    The details provided will en...

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    Thank you for confirming these details and for your cooperation. The details provided enable us to closely monitor the quality of our products.

    I am sorry this product did not perform as stated on the datasheet and for the inconvenience this h...

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    Thank you for contacting us.

    Ice-cold methanol for 5-10 minutes would be ideal.

    I would suggest not storing the samples however if it is unavoidable then storing cells after fixation on chamber slides would be the option to go for. Read More

    Thank you for your email. I am sorry to hear that you have been experiencing problems with this antibody.

    We haven't received any other complaint for this lot so I can reassure you that the quality of this antibody is absolutely fine. I have r...

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