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Annexin V-Cy3 Apoptosis Kit

based on 19 citations in multiple journalsAnnexin V-Cy3 Apoptosis Kit194.6 5
Detects Apoptosis within 10 min.
Catalog #: K102

Availability: In stock

SKU-Size Size Price Qty
K102-25 25 assays
$135.00
K102-100 100 assays
$365.00
K102-400 400 assays
$795.00

Product Details

Detection Method Flow cytometry (Ex = 543 nm; Em = 570 nm) and fluorescence microscopy
Species Reactivity Mammalian
Applications N/A
Features & Benefits • Simple one step staining procedure in 10 minutes
• Fast and convenient
• Cy3 shows brighter red fluorescence
Kit Components • Annexin V-Cy3
• 1X Binding Buffer
Storage Conditions 4°C
Shipping Conditions Gel Pack
USAGE For Research Use Only! Not For Use in Humans.

Details

Annexin V Apoptosis Detection Kit is based on the observation that soon after initiating apoptosis, cells translocate the membrane phosphatidyl-serine (PS) from the inner face of the plasma membrane to the cell surface. Once on the cell surface, PS can be easily detected by staining with a fluorescent conjugate of Annexin V, a protein that has a high affinity for PS. The one-step staining procedure takes only 10 minutes. Detection can be analyzed by flow cytometry or by fluorescence microscopy.


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I am looking to investigate cell apoptosis using 96 well plates. I was wondering if your Annexin V-Cy3 Apoptosis Detection Kit could be adapted to a 96 well plate fluorescent plate reader format?
It is possible to adapt the assay  to a plate reader format, however, the sensitivity can vary from sample to sample. For this particular assay, take 10^5 trypsinized cells into the plate wells, resuspend in 100 µl binding buffer, add 1µ Annexin V, incubate them, give a gentle wash and then analyze. The cell number can vary from cell to cell and/or treatment protocol selected. Please take measures to prevent overcrowding in the wells and also aspirate solutions gently since the apoptotic cells tend to detach quickly.
Can you prelabel the cells and then follow apoptosis using this kit?
Unfortunately, the product has not yet been tested in this manner. We are unsure whether it might work and needs significant optimization with known controls and timepoints to determine if the kit is performing correctly in these conditions.
For this kit, where was the Annexin-V obtained from? Is it recombinant? Or purified? And from what species?
The annexin V is a recombinant protein expressed from E. coli.
Can the kit work on bacteria or yeast cells?
The kit has been standardized for mammalian cells only.
What is the exact volume of sample required for this assay?
There is no specific volume we can recommend for the amount any sample to be used since it is completely sample concentration and quality based. You have to do a pilot expt with multiple sample volumes to determine the optimal volume which gives a reading within the linear range of the standard curve. Please refer to the citations for this product to see what other clients have used with similar sample types.
Will trypsinizing the cells removed the phosphatidylserine?
The trypsin used in this kit should in no way affect the PS on the cell membrane.
Do you have trial sizes of this kit?
Unfortunately, we do not have trial sizes of this kit available. However, if you are based in the US or Canada, we will give you a 10% off list price introductory discount on its purchase price. If you are based out of this area please contact yopur regional BioVision distributor.
What is the shelf life of this kit?
The expiry date is typically 1 year from the date of shipment
Can we purchase individual components of this kit?
Yes, you can purchase any of the kit's components without the whole kit. Please refer to the component Cat #s mentioned on the datasheet for ordering.
Can we use an alternate buffer for sample preparation (cell lysis, sample dilutions etc)?
Our assay buffers are optimized for the reactions they are designed for. They not only contain some detergents for efficient lysis of your cells/tissue, but also contain some proprietary components required for the further reactions. Therefore, we highly recommend using the buffers provided in the kit for the best results.
Judith Olejnik et al., Ebola Virus Does Not Block Apoptotic Signaling Pathways. J. Virol., May 2013; 87: 5384 - 5396.
Dongfei Qi et al.,  Monocyte Chemotactic Protein-induced Protein 1 (MCPIP1) Suppresses Stress Granule Formation and Determines Apoptosis under Stress J. Biol. Chem., Dec 2011; 286: 41692 - 41700.
Yannis Guillemin et al., Characterization of Unique Signature Sequences in the Divergent Maternal Protein Bcl2l10, Mol. Biol. Evol., Dec 2011; 28: 3271 - 3283.
Valero, J.G. et.al. Bax-derived membrane-active peptides act as potent and direct inducers of apoptosis in cancer cells. J. Cell Sci., Feb 2011; 124: 556 - 564.
Zhou J et al (2009) Invest. Ophthalmol. Vis. Sci.; 50: 1392 - 1399.
For more citations of this product click here
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