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Click-iT™ TUNEL Alexa Fluor™ 647 Imaging Assay, for microscopy & HCS This product, and/or its packaging, incorporates one or more environmental/green features. Click on this icon to learn more.

Catalog number:  C10247

 Related applications:

Cell Viability, Proliferation & Function

| Labeling Chemistry

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The Click-iT® TUNEL Alexa Fluor® 647 Imaging Assay utilizes a dUTP modified with an alkyne, a small, bio-orthogonal functional group that enables the nucleotide to be more readily incorporated by TdT than other modified nucleotides, including BrdUTP, biotin-dUTP or fluorescein-dUTP. Detection is based on a click reaction, a copper (I) catalyzed reaction between an azide and alkyne. Click chemistry fills the void when methods such as direct labeling or the use of antibodies are not efficient. The small size of the detection reagent, an Alexa Fluor® azide (MW <~1000) compared to that of an antibody (MW ~150,000) enables facile penetration of complex samples with only mild fixation and permeabilization required.

Compared to other assays using one of the other modified nucleotides, the Click-iT® TUNEL assay is able to detect a higher percentage of apoptotic cells under identical conditions. The assay is also fast and is complete within 2 hours. Furthermore, the Click-iT® TUNEL assay allows multiplexing with surface and intracellular biomarker detection.

More tools for apoptosis detection and measurement >
For Research Use Only. Not for use in diagnostic procedures.


Color: Far-Red
Detection Method: Fluorescent
Emission Class: UV, near IR
Excitation Class: UV, near IR
For Use With (Equipment): Fluorescence Microscope, High Content Instrument
Format: 96-well plate
Label or Dye: Alexa Fluor™ 647, Hoechst 33342
Product Line: Alexa Fluor™, Click-iT™, Molecular Probes®
Product Size: 1 kit
Green Features: Less hazardous
Shipping Condition: Dry Ice

Contents & storage

1 kit containing sufficient reagents to perform 1 X 96 tests or 50 coverslips.
Store at ≤-20°C and protected from light.


Manuals & protocols