Phosphatidylserine (PS) is a glycerophospholipid consisting of a phosphatidyl group attached to L-serine via a phosphodiester linkage. PS is a critical component of the cellular plasma membrane and accounts for 2-15% of plasma membrane lipid composition, depending on the cell/tissue type. The highest concentrations of PS are found in neuronal tissues, where it is critical for maintaining conduction velocity in myelinated neurons, as well as for higher order cognitive skills such as learning and memory. In normal, healthy cells, PS is held in the inner membrane surface (facing the cytosol) by the lipid transporter protein flippase. However, in apoptotic cells, PS molecules `shuffle' between the inner and outer plasma membrane monolayers. Whe
Size
100 assays
Concentration
n/a
Applications
This assay provides a convenient and non-ELISA alternative to detect Phosphatidylserine amount in biological samples.