[Comparative study of Lecithin and cephalin exchange between liposomes and mitochondria. Activity measured in the presence and absence of a non-specific carrier protein isolated from rat liver]

Abstract

Study has been made of the rat liver protein catalyzed exchange of both lecithin and cephalin between liposomes and rat liver mitochondria. It has been shown that the exchange activity of these two phospholipids by the protein is almost the same and is apparently not dependent on the nature of donor liposomes. In contrast the spontaneous exchange activity of the above phospholipids strictly depends on the type of donor liposomes. Moreover, the spontaneous exchange of lecithin at any incubation time appears to be almost 100% higher than that of cephalin.