The presence of glyceryl-aminoethylphosphonic acid has been demonstrated in the products of alkaline hydrolysis of Tetrahymena lipid and a pure cephalin fraction, consisting of phosphatidylethanolamine and its phosphonic analogue, in the molecular ratio of approx. 13:1, has been isolated from th...detailed
A surface trough has been used to study protein/lipid interactions by a development of the Schulman-Rideal injection technique. From the adsorption isotherms obtained the structure of the complexes has been determined. The lipids used—distearin, dipalmitoyl cephalin, and distearoyl lecithin—we...detailed
The following facts were confirmed by detailed investigations carried out in vitro on the phospholipid metabolism in rat liver.Lecithin (phosphatidylcholine) and cephalin (phosphatidylethanolamine) in mitochondria could be derived from microsomes through exchange.The degree of exchange was great...detailed
A requirement for phospholipids in the activity of a number of membrane-bound enzymes is recognized; i.e., enzyme activity is reduced or lost entirely when the lipid is removed and is restored or increased when this specific lipid is added back to the system. In general, however, only the effect...detailed