The condensation product of phosphatidic acid and serine; found in biomembranes. SEE ALSO: cephalin.
* * *
phos·pha·ti·dyl·ser·ine -'se(ə)r-.ēn n a phospholipid found in mammalian cells
* * *
n.
a cephalin-like phospholipid containing the amino acid serine. It is found in brain tissue. See also cephalin.
* * *
phos·pha·ti·dyl·ser·ine (fos″fə-ti″dəl-serґēn) a phospholipid in which serine is attached to the phosphate group of phosphatidic acid by an ester linkage; it is an important constituent of cell membranes and is localized preferentially in the inner surface of the plasma membrane. Abbreviated PS.Medical dictionary. 2011.