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Home » » Apoptosis & Related Products » Annexin V » Annexin V-Cy3 » K202-100
Products and Applications 

Annexin V-Cy3 Apoptosis Kit Plus
Detects Apoptotic, Necrotic & Healthy cells within 10 min

Catalog# Size Price    
K202-100 100 assays $335.00 Add to Cart
K202-2525 assays$145.00Add to Cart
K202-400400 assays$685.00Add to Cart

Kit Summary:
• Detection method- flow cytometry using FL1 channel for SYTOX Green dye (Ex = 488 nm; Em = 530 nm) and FL2 channel for Annexin V-Cy3 (Ex = 543 nm; Em = 570 nm).
• Sample type- Live cells
• Species reactivity- Mammalian
• Kit size- Convenient sizes (25, 100 and 400 assays)
• Applications- Detecting apoptosis in living cells by flow cytometry or fluorescence microscopy. Cy3 shows brighter red fluorescence.

Features & Benefits:
• Simple one-step procedure; takes only 10 minutes
• Fast and convenient
• Apoptotic cells show red fluorescence, dead cells show green fluorescence and live cells show little or no fluorescence.

Kit components:
• Annexin V-Cy3
• SYTOX Green Dye
• Binding Buffer

Description:
The assay is based on the observation that soon after initiating apoptosis, cells translocate the membrane phospholipid phosphatidylserine (PS) from the inner face of the plasma membrane to the cell surface. Once on the cell surface, PS can easily be detected by staining with a fluorescent conjugate of Annexin V, a protein that has a strong natural affinity for PS. The one-step staining procedure takes only 10 minutes. In addition, the assay can be directly performed on live cells, without the need of fixation. The Annexin V-Cy3 Apoptosis Detection Kit Plus includes annexin V-Cy3, SYTOX green dye, and binding buffer. The SYTOX green dye is impermeant to live cells and apoptotic cells, but stains necrotic cells with intense green fluorescence by binding to cellular nucleic acids. After staining a cell population with annexin V-Cy3 and SYTOX Green dye in the provided binding buffer, apoptotic cells show red fluorescence, dead cells show green fluorescence and live cells show little or no fluorescence. These populations can easily be distinguished by Fluorescence microscopy using FITC and rhodamine filters or by flow cytometry using the FL1 channel (Ex. 488 nm/Em. 530 nm) for SYTOX Green dye and FL2 channel for Annexin V-Cy3 (Ex. 543 nm/Em. 570 nm).

Storage Conditions:
+4°C

Shipping Conditions:
gel pack

USAGE: For Research Use Only! Not For Use in Humans.

Annexin V-Cy3 Plus Assay Protocol:

1. Induce apoptosis by desired method. Concurrently incubate a control culture without induction.
2. Collect 1-5 x 105 cells by centrifugation.
3. Resuspend cells in 500 µl of 1X Binding Buffer.
4. Add 5 µl of Annexin V-Cy3 and 1 µl of SYTOX Green dye.
Note: Thaw the SYTOX Green dye in room temperature before use.
5. Incubate at room temperature for 5-10 min in the dark.
6. Analyze the stained cells by flow cytometry using FL1 channel for SYTOX Green dye (Ex = 488 nm; Em = 530 nm) and FL2 channel for Annexin V-Cy3 (Ex = 543 nm; Em = 570 nm).
The cell population should separate into three groups: live cells with only a low level of fluorescence, apoptotic cells with red fluorescence and necrotic cells with green fluorescence.
The flow cytometric results can also be confirmed by viewing the cells under a fluorescence microscope using FITC filter for SYTOX and rhodamine filter for Annexin V-Cy3.
For adherent cells, gently trypsinize and wash cells once with serum-containing media before incubation with Annexin V-Cy3 and SYTOX dye.
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