• Product nameAnti-Rad51 antibody
    See all Rad51 primary antibodies
  • Description
    Rabbit polyclonal to Rad51
  • Tested applicationsSuitable for: WB, ICC/IF, IPmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Full length human Rad51 expressed in E. coli.

  • Positive control
    • IF: HEK293 cells


  • FormLiquid
  • Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
  • Storage bufferPreservative: 0.035% Sodium Azide
    Constituents: 30% Glycerol, PBS, pH 7.5
  • Concentration information loading...
  • PurityProtein A purified
  • ClonalityPolyclonal
  • IsotypeIgG
  • Research areas


Our Abpromise guarantee covers the use of ab46981 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
WB Use a concentration of 0.5 - 2 µg/ml. Predicted molecular weight: 37 kDa.
ICC/IF Use a concentration of 1 - 5 µg/ml. Acetone or methanol fixation is recommended.
IP Use at an assay dependent dilution.


  • 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
    • 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 images

  • Staining of HEK293 cells with anti Rad51 antibody (ab46981, 1 µg/ml) in green, and DAPI in blue.
  • All lanes : Anti-Rad51 antibody (ab46981) at 0.5 µg/ml

    Lane 1 : Recombinant human Rad51 protein (ab63808) at 0.1 µg
    Lane 2 : Recombinant human Rad51 protein (ab63808) at 0.01 µg

    Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (ab97080) at 1/5000 dilution
    developed using the ECL technique

    Performed under reducing conditions.

    Exposure time : 3 minutes

References for Anti-Rad51 antibody (ab46981)

This product has been referenced in:
  • Wang S  et al. Arabidopsis BRCA2 and RAD51 proteins are specifically involved in defense gene transcription during plant immune responses. Proc Natl Acad Sci U S A 107:22716-21 (2010). WB ; Arabidopsis thaliana . Read more (PubMed: 21149701) »

See 1 Publication for this product

Product Wall

Thank you for your enquiry. Regarding question 1: No, these are two different rabbit anti-Rad51 antibodies. Regarding question 2: Both antibodies bind Rad51 and should label foci of cells induced with DNA damage. The ICC image on the datasheet of ab469...

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