Caspase-3/7 Activity Flow Cytometry Kit, Green
For detection of active caspase-3 in mammalian cells undergoing apoptosis
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Overview
Caspase-3 and caspase-7 have a proteolytic substrate selectivity for the peptide sequence Asp-Glu-Val-Asp (DEVD). This kit includes TF2-DEVD-FMK—a cell-permeable and non-toxic fluorescent substrate—as well as an assay buffer and propidium iodide. When added to apoptotic cells, TF2-DEVD-FMK irreversibly binds to activated caspase-3, resulting in the retention of the green fluorescent reagent within cells that can be detected by flow cytometry.
Caspases are a family of proteases that play a central role in cellular apoptosis through the cleavage of select proteins, and result in the disassembly of the cell (Thornberry & Lazebnik Science, 1998). This process is switched on by pro-apoptotic signals from death receptors or stimuli such as cytotoxic reagents, which activate the initiator caspases and lead to activation of the effector caspases—caspase-3 and caspase-7 (Thornberry & Lazebnik Science, 1998). Caspase-3/7 Activity Flow Cytometry Kit, Green is useful for screening caspase-3 inhibitors and quantifying apoptotic cells containing active caspase-3.
Data Figures

Figure 1. Caspase-3/7 Activity Flow Cytometry Kit, Green
Jurkat cells were treated with 0.2% DMSO (Control) or 20 µM camptothecin (CPT), and in the presence or absence of Z-VAD-FMK (a pan-caspase inhibitor). Active caspase-3/7 was detected by flow cytometry, using the Caspase-3/7 Activity Flow Cytometry Kit, Green. A representative plot of three independent experiments is depicted in the figure above
Protocols and Documentation
Find supporting information and directions for use in the Product Information Sheet or explore additional protocols below.
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