When cells are undergoing cell death, phosphatidylserine(PS), a phospholipid which makes up a portion of the cell membrane, will translocate to the outside-facing side of the membrane. This translocation in the cell death mechanism exposes PSto the extracellular environment. Annexin V, a 35-36 kDa phospholipid-binding protein, has a high affinity for PS(kDa = 7 nmol/l). Once Annexin V is bound to the apoptotic cell it acts as a beacon for cells that have undergone apoptosis.
Apoptosis process can be measured in the laboratory easily and most effectively by using a FITC-labeled Annexin V protein to stain cells and analyze them via flow cytometry. 

Features:

Apoptosis process can be measured in the laboratory easily and most effectively by using a FITC-labeled Annexin V protein to stain cells and analyze them via flow cytometry

Component：1. Annexin V-FITC  250μl
                      2. Propidium Iodide, PI 500μl
                      3. Binding Buffer ( 4× ) 10ml

Storage：4 ℃. Protect from light.

Shelf Life：Store at 4°C for 1 year.