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TUNEL Assay Kit (Fluorescence, 640 nm)

TUNEL Assay Kit (Fluorescence, 640 nm) #64936

Name: TUNEL Assay Kit (Fluorescence, 640 nm)
Price: 712.00 USD
Availability: InStock

Product Information

Protocol

Product Description

TUNEL (terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling) is a method by which a fluorophore conjugated nucleotide is enzymatically linked to the 3′ end of fragmented DNA. Since DNA fragmentation is a hallmark of apoptosis, the TUNEL assay has become a well established method to monitor apoptosis in situ.

The TUNEL Assay Kit (Fluorescence, 640 nm) provides you with the buffers, enzyme, and dUTP fluorophore conjugate necessary to complete the TUNEL reaction in fixed cells or tissue. This kit is intended for use with fluorescence microscopy and/or flow cytometry.

Fluorescent Properties

Excitation maximum = 642 nm / Emission maximum = 662 nm

Specificity / Sensitivity

Tissue processing or cell degradation may result in labeling of nuclei in non-apoptotic cells.

Background

Apoptosis is a regulated cellular suicide mechanism characterized by nuclear condensation, cell shrinkage, membrane blebbing, and DNA fragmentation (1). During late stages of apoptosis, DNA is fragmented by an endonuclease that cleaves the chromatin into nucleosomal units which can be visualized on gels as DNA laddering (2). DNA fragmentation also serves as a basis for monitoring apoptosis in situ using the TUNEL assay (3). In this assay, terminal deoxynucleotidyl transferase enzymatically incorporates a fluorophore conjugated nucleotide to the 3' end of fragmented DNA. Apoptosis can be monitored by an increase in TUNEL staining within intact cells.

Limited Uses

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For Research Use Only. Not For Use In Diagnostic Procedures.

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