Cephalin vs. Cephalon



(biochemistry) A phospholipid found particularly in the cells of nervous tissue; it is also the primary phospholipid in bacteria.


(zoology) The head of a trilobite.


One of a group of phospholipids (nitrogenous phosphorized fatty substances), present in all living cells and particularly evident in nervous tissue. The cephalins consist of glycerol phosphate in which the two free hydroxyls of the glycerol are esterified with fatty acids, and the phosphate forms an ester linkage to the hydroxyl of ethanolamine. The phosphate may be linked to the alpha (end) or beta (middle) hydroxyl of the glycerol portion. The natural isomers are of the alpha form, and have the general formula R.O.CH2.CHOR´.CH2.O.PO2.O.CH2.CH2.NH2, where R and R´ are the acyl residues of long-chain fatty acids, which may be the same or different.


The head.


It is a example of glycerophospholipid. (Compound lipid).


Cephalon, Inc. was an American biopharmaceutical company co-founded in 1987 by pharmacologist Frank Baldino, Jr., neuroscientist Michael Lewis, and organic chemist James C. Kauer—all three former scientists with the DuPont Company.


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