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  2. Annexin V-FITC/PI Apoptosis Detection Kit

Annexin V-FITC/PI Apoptosis Detection Kit 

Cat. No.: HY-K1073
Manual SDS

MCE Annexin V-FITC/PI Apoptosis Detection Kit provides a rapid and convenient method to detect cell apoptosis and necrosis. After staining, live cells show little or no fluorescence (Annexin V-/PI-), early apoptosis cells show green fluorescence(Annexin V+/PI-), late apoptosis cells and necrosis cells show red and green fluorescence (Annexin V+/PI+).


Annexin V-FITC/PI Apoptosis Detection Kit
Size Price Stock Quantity
20T USD 244 In-stock
Estimated Time of Arrival: December 31
50T USD 423 In-stock
Estimated Time of Arrival: December 31
100T(50T*2) USD 620 In-stock
Estimated Time of Arrival: December 31

* Please select Quantity before adding items.

  • Description

  • Storage

  • Protocol

  • Components

  • Documentation

Description
& Advantages

MCE Annexin V-FITC/PI Apoptosis Detection Kit provides a rapid and convenient method to detect cell apoptosis and necrosis. In normal live cells, Phosphatidylserine (PS) is located on the cytoplasmic surface of the cell membrane. Upon initiation of apoptosis, PS translocates from the inner to the outer leaflet of the membrane. Annexin V is a 35-36 kDa Ca2+- dependent phospholipid-binding protein that has a high affinity for PS. Annexin V labeled with green fluorescent FITC can identify apoptotic cells by binding to PS exposed on the outer leaflet. Propidium Iodide (PI) is a cell-membrane impermeable dye to live cells and early apoptosis cells, but stains late apoptosis cells and necrosis cells with red fluorescence. After staining, live cells show little or no fluorescence (Annexin V-/PI-), early apoptosis cells show green fluorescence (Annexin V+/PI-), late apoptosis cells and necrosis cells show red and green fluorescence (Annexin V+/PI+).


Storage

-20°C, 1 year


Protect from light


Avoid repetitive freeze-thaw cycles


Protocol

Incubation of cells with Annexin V-FITC and PI


1.  Collect 1-5 × 10 cells.


For suspension cells: Centrifuge at 1000 g for 5 minutes and then discard the supernatant. Add 1 mL of pre-cooled PBS to resuspend the cells, centrifuge at 1000 g for 5 minutes and then discard the supernatant.


For adherent cells: Collect the cell culture medium. Wash cells with PBS and add trypsin to dissociate cells. Add the medium and gently suspend the cells to make a single-cell suspension. Centrifuge at 1000 g for 5 minutes and then discard the supernatant. Add 1 mL of pre-cooled PBS to resuspend the cells, centrifuge at 1000 g for 5 minutes and then discard the supernatant.


Note: It is recommended to use trypsin containing no EDTA.


2.  Resuspend the cells in 195 μL of Binding Buffer.


3.  Add 5 μL of Annexin V-FITC.


4.  Add 10 μL of PI Stain.


5.  Incubate the cells at room temperature for 10-20 minutes in the dark.


Detection by flow cytometer


Analyze Annexin-FITC binding by flow cytometer (Ex = 488 nm; Em = 525 nm) using FITC signal detector (usually FL1) and PI staining by the phycoerythrin emission signal detector (usually FL2 or FL3).


Note: It is recommended to perform three controls: a: cells with no Annexin-FITC or PI; b: cells with only Annexin-FITC; c: cells with only PI.


Detection by fluorescence microscope


Detect the fluorescence by fluorescence microscope: Centrifuge at 1000 g for 5 minutes, discard the supernatant, resuspend the cells with 50-100 μL of Binding Buffer and then detect the fluorescence by fluorescence microscope.


Components
Components HY-K1073-20T HY-K1073-50T HY-K1073-100T (50T*2)
Annexin V-FITC 100 μL 250 μL 250 μL*2
Binding Buffe 12 mL 30 mL 30 mL*2
PI Stain 220 μL 550 μL 550 μL*2
Documentation

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Product Name:
Annexin V-FITC/PI Apoptosis Detection Kit
Cat. No.:
HY-K1073
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