In situ BrdU-Red DNA Fragmentation (TUNEL) Assay Kit (ab66110)


  • Product nameIn situ BrdU-Red DNA Fragmentation (TUNEL) Assay Kit
    See all DNA fragments kits
  • Tests
    60 x 1 assay
  • Sample type
    Tissue, Adherent cells, Suspension cells
  • Assay typeQuantitative
  • Assay time
    3h 00m
  • Product overview

    Abcam's In situ BrdU-Red DNA Fragmentation (TUNEL) Assay Kit provides complete components including positive and negative control cells for conveniently detecting DNA fragmentation by fluorescence microscopy or flow cytometry. The kit utilizes Br-dUTP (bromolated deoxyuridine triphosphate nucleotides) which is more readily incorporated into DNA strand breaks than other larger ligands (e.g., fluorescein, biotin or digoxigenin). The greater incorporation gives rise to brighter signal when the Br-dUTP sites are identified by a Red fluorescence labeled anti-BrdU monoclonal antibody. The assay is suitable for studying apoptosis with GFP transfected cells.
    Visit our FAQs page for tips and troubleshooting.

  • Notes

    This kit is BrdU-Red labeled (Ex/Em = 488/576nm). If want to use FITC (Ex/Em = 495/519nm) as a label, we recommend our In situ Direct DNA Fragmentation (TUNEL) Assay Kit (ab66108).

  • Tested applicationsFluorescence Microscopy, Flow Cytmore details


  • RelevanceInternucleosomal DNA fragmentation is a hallmark of apoptosis in mammalian cells.


Our Abpromise guarantee covers the use of ab66110 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
Fluorescence Microscopy Use at an assay dependent concentration.
Flow Cyt Use at an assay dependent dilution.


References for In situ BrdU-Red DNA Fragmentation (TUNEL) Assay Kit (ab66110)

ab66110 has not yet been referenced specifically in any publications.

Product Wall

The 7AAD stain has different excitation and emission maxima than the Red fluorescence from the antibody ( emission max is 576 versus 655nm). This difference is enough to distinguish spectrally the signal from the antibody and 7AAD. The main r...

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J’ai contacté le laboratoire qui m’a confirmé que pour la microscopie, nous vous recommandons de prendre les cellules et d’ajouter du PBS avant d'ajouter le 7-AAD et d’observer les cellules sous un microscope.

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J’ai contacté le laboratoire qui m’a confirmé que les cellules pour les contrôles positifs et négatifs sont déjà fixés et sont stockés dans 70% éthanol.

The lab have confirmed that we have never measured DFI with this kit. However, my online search seems to indicate that it is possible to do so. Here is the formula and the link for its calculation, which needs to be modified according to this staining....

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This kit should work for both cells in suspension and adherent cells.

I hope this information is helpful to you. Please do not hesitate to contact us if you need any more advice or information.

Thank you for your inquiry.
I am happy to confirm that ab66110 should be suitable for IHC-P tissues. It might be necessary to optimise some steps. Please see this general protocol for IHC-P below:
A. Tissue Section Preparations:
The prot...

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Thank you for your enquiry and your interest in our products. The two kits (ab66108 and ab66110) are mainly used for cells analyzed by flow cytometry. Currently, we do not have specific kits for tissue samples (for DNA Fragmentation) but I would...

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