Home > A. Molecular pathology > Metabolome > phosphatidylserine
phosphatidylserine
Wednesday 4 January 2012
Phosphatidylserine (abbreviated Ptd-L-Ser or PS) is a phospholipid component, usually kept on the inner-leaflet (the cytosolic side) of cell membranes by an enzyme called flippase.
When a cell undergoes apoptosis, phosphatidylserine is no longer restricted to the cytosolic part of the membrane, but becomes exposed on the surface of the cell.
See also
phospholipids
