CellEvent™ Caspase-3/7 Green ReadyProbes™ Reagent
CellEvent™ Caspase-3/7 Green ReadyProbes™ Reagent
Invitrogen™

CellEvent™ Caspase-3/7 Green ReadyProbes™ Reagent

CellEvent™ Caspase-3/7 Green ReadyProbes™ Reagent is a fluorogenic, no-wash indicator of activated caspase-3/7 for live- and fixed-cell applications. Activation ofRead more
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Catalog number R37111
Price (USD)
334.00
Each
Add to cart
Price (USD)
334.00
Each
Add to cart
CellEvent™ Caspase-3/7 Green ReadyProbes™ Reagent is a fluorogenic, no-wash indicator of activated caspase-3/7 for live- and fixed-cell applications. Activation of caspase-3 is an early indicator of apoptosis and CellEvent™ Caspase-3/7 Green reagent allows rapid and sensitive detection of cells destined for cell death.

• Simple and fast no-wash protocol helps preserve delicate apoptotic cells
• Compatible with both live-cell fluorescence imaging and formaldehyde-based fixation methods
• Ready-to-use liquid formulation in convenient dropper bottle—no need to dilute, weigh, or pipette
• Stability at room temperature—keep handy at your scope or cell culture area.

See other ReadyProbes™ reagents for cell staining
Learn more about other assays for apoptosis

Cell imaging applications
CellEvent™ Caspase-3/7 Green reagent is a four amino acid peptide (DEVD) conjugated to a nucleic acid-binding dye that is non-fluorescent when not bound to DNA. The CellEvent™ Caspase-3/7 Green reagent is intrinsically non-fluorescent, as the DEVD peptide inhibits binding of the dye to DNA. Upon activation of caspase-3/7 in apoptotic cells, the DEVD peptide is cleaved and the free dye can bind DNA, generating a bright green fluorescence. The fluorescence emission of the dye when bound to DNA is 530 nm and can be observed using a standard FITC filter set.

Suggestions for use
• In most cases, 2 drops/ml and an incubation time of 30 minutes is sufficient for bright nuclear staining of apoptotic cells; however, optimization may be needed for some cell types, conditions, and applications. In such cases, simply add more or fewer drops until the optimal staining intensity is obtained.
• If desired, combine CellEvent™ Caspase-3/7 Green ReadyProbes™ reagent with a red or far-red nuclear stain for a total cell count
• CellEvent™ Caspase-3/7 Green dye is excited with a maximum at 502 nm and has an emission maximum at 530 nm. It is detected through standard GFP and FITC filters.
For Research Use Only. Not for use in diagnostic procedures.
Specifications
Quantity1.75 mL
FormatDropper Bottle
Product TypeCaspase 3/7 Reagent
Compatible CellsMammalian Cells
Excitation/Emission502/530
ColorGreen
Product LineCellEvent™, ReadyProbes™
Detection MethodFluorescence
For Use With (Application)Cell Imaging
For Use With (Equipment)Confocal Microscope, Floid™ Cell Imaging System, Fluorescence Microscope, Flow Cytometer, Floid™ Cell Imaging System
Label TypeOther Label(s) or Dye(s)
Unit SizeEach
Contents & Storage
1 × 1.75 mL dropper bottles

Store at ≤ 25°C.

Frequently asked questions (FAQs)

I want to use your CellEvent Caspase-3/7 Green detection reagent for studying apoptosis in live cells, but for 96-well microplate instead of microscopy. Will it work? Can I multiplex it with a cell vitality dye?

Yes, on both accounts. We have demonstrated that it works for microplates, and we have multiplexed the dye with PrestoBlue Cell Viability Reagent. Some microplates may be less sensitive than microscopic analysis, so sensitivity may not be the same for the CellEvent reagent.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

I want to study apoptosis using an Annexin V conjugate, but with adherent cells via microscopy instead of flow cytometry. Can this be done?

It has been done, but we don‘t recommend it. Both healthy cells and apoptotic cells possess phosphatidylserine on the cell surface, which can be detected with Annexin V, but apoptotic cells have significantly more of it. You can easily tell the difference between these two populations with flow cytometry, because flow cytometers are more sensitive and have a higher throughput. But with a microscope, you cannot always tell the difference, especially for adherent cells. Instead, for microscopy, we recommend a different technique, such as detecting caspases with CellEvent Caspase Detection Reagents.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

What are the recommended storage conditions for the CellEvent Caspase-3/7 Green ReadyProbes Reagent (Cat. No. R37111)?

The recommended storage conditions for CellEvent Caspase-3/7 Green ReadyProbes Reagent (Cat. No. R37111) is between 4 and 25 degrees C or room temperature.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

How long can I measure the Cell Event Caspase-3/7 Detection Reagents (Cat. Nos. C10432, C10433, C10434, C10423, C10723, R37111) signal for the kinetic assay?

We have tested Caspase 3/7 Green Detection Reagents (Cat. Nos. C10432, C10433, C10434, C10423, C10723, R37111) for up to 48 hours and observed no toxicity or stability issues with the reagent. If the samples are fixed at the end of the time course the signal will be retained for days. For live cells, apoptotic cells will round up and float away before the loss of fluorescence signal from CellEvent.

The following reference reports a visible signal for up to 72 hrs:

Sambi M, Samuel V, Qorri B, Haq S, Burov SV, Markvicheva E, Harless W, Szewczuk MR. A Triple Combination of Metformin, Acetylsalicylic Acid, and Oseltamivir Phosphate Impacts Tumour Spheroid Viability and Upends Chemoresistance in Triple-Negative Breast Cancer. Drug Des Devel Ther. 2020 May 25;14:1995-2019. doi: 10.2147/DDDT.S242514. PMID: 32546966; PMCID: PMC7260544.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

Can I use the ReadyProbes reagents for flow cytometry?

This is not recommended. The ReadyProbes reagents were developed for imaging applications whereas the Ready Flow reagents were optimized for flow cytometry.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.