Annexin V Kit

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F 300 Tests
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This test employs the property of Annexin V to bind to the membrane phospholipid phosphatidylserine (PS) in the presence of Ca2+. PS is exposed at the cell surface during the early stages of apoptosis. Detection of PS is a very sensitive method for detecting cells entering apoptosis, at a time point considerably ahead of nuclear changes such as DNA degradation.

The conjugation protocol used to prepare this product has not changed the native phospholipid binding properties of Annexin V. This protocol is designed to measure apoptosis easily and quickly in a sample of suspended cells.

View our complete list of formats and sizes of Annexin V kits

Buffer Solution
Annexin V:FITC:
TRIS Buffered saline

Binding Buffer (after dilution):
10mM Hepes/NaOH
140mM NaCl
2.5mM CaCl2
Preservative Stabilisers
Annexin V:FITC:
0.02% Sodium Azide (NaN3)
1% Bovine Serum Albumin
Reagents in the Kit
Annexin V:FITC1x 1.5 ml vial
Propidium Iodide2x 1.8 ml vial at 20 ug/ml
Binding Buffer1x 50 ml vial (4x concentrate)
Max Ex/Em
Fluorophore Excitation Max (nm) Emission Max (nm)
FITC 490 525
For research purposes only
Guaranteed until date of expiry. Please see product label.

Store at +4oC. DO NOT FREEZE
This product is photosensitive and should be protected from light.

This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visit the antibody protocols page.
Application Name Verified Min Dilution Max Dilution
Flow Cytometry Neat
Where this product has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the product for use in their own system using appropriate negative/positive controls.
Instructions For Use
1) Dilute binding buffer 1:4 in distilled water (50 ml binding buffer + 150 ml distilled water).

2) Wash cells in PBS by gentle shaking or by pipetting up and down.

3) Resuspend cells in 200 ul of pre-diluted binding buffer, adjusting to a cell density of 2-5 x 105 cells/ml.

4) Add 5 ul Annexin V:FITC to 195 ul of the cell suspension prepared in step 3.

5) Mix and incubate for 10 minutes in the dark, at room temperature.

6) Wash cells in 200 ul of pre-diluted binding buffer.

7) Resuspend cells in 190 ul pre-diluted binding buffer.

8) Add 10 ul of the Propidium Iodide solution.

9) Analyse by flow cytometry.

The flow cytometer is preferably set such that the Mean Fluorescence Intensity of the Annexin V negative population is between 1 and 10. Optimal parameter settings can be found using a positive control. For a positive control, incubate the cells with 3% formaldehyde in buffer during 30 minutes on ice. Wash away the formaldehyde and suspend the cells in cold binding buffer at 2-5 x 105 cells/ml. Proceed with step 2 as described above.

Description Product Code Applications Pack Size List Price Your Price Quantity
Annexin V:FITC Assay Kit ANNEX100F F 100 Tests
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Description Annexin V:FITC Assay Kit
Annexin V:FITC Assay Kit ANNEX20F F 20 Tests
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Description Annexin V:FITC Assay Kit

References for Annexin V Kit

  1. Lu, K.H. et al. (2010) In Vitro and In Vivo Apoptosis-Inducing Antileukemic Effects of Mucuna macrocarpa Stem Extract on HL-60 Human Leukemia Cells.
    Integr Cancer Ther. 9: 298-308.
  2. Yen, J.H. et al. (2010) Glycine tomentella Hayata inhibits IL-1β and IL-6 production, inhibits MMP-9 activity, and enhances RAW264.7 macrophage clearance of apoptotic cells.
    J Biomed Sci. 17: 83.
  3. Chen, C.W. et al. (2010) The signals of FGFs on the neurogenesis of embryonic stem cells.
    J Biomed Sci.17:33.
  4. Lu KH et al. (2012) Synergistic Apoptosis-Inducing Antileukemic Effects of Arsenic Trioxide and Mucuna macrocarpa Stem Extract in Human Leukemic Cells via a Reactive Oxygen Species-Dependent Mechanism.
    Evid Based Complement Alternat Med. 2012: 921430.
  5. Smith, K. et al. (2011) Mono- and tri-cationic porphyrin-monoclonal antibody conjugates: photodynamic activity and mechanism of action.
    Immunology. 132 (2): 256-65.
  6. Koutsogiannaki S et al. (2015) Effects of cadmium and 17β-estradiol on Mytilus galloprovincialis redox status. Prooxidant-antioxidant balance (PAB) as a novel approach in biomonitoring of marine environments.
    Mar Environ Res. 103: 80-8.

Flow Cytometry

Entrez Gene
GO Terms
GO:0005509 calcium ion binding
GO:0007596 blood coagulation
GO:0004859 phospholipase inhibitor activity
GO:0007165 signal transduction
GO:0005544 calcium-dependent phospholipid binding
GO:0005737 cytoplasm
GO:0006916 anti-apoptosis
GO:0050819 negative regulation of coagulation
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