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Structural comparison between triglycerides and phospholipids from pig kidney

1971; Wiley; Volume: 6; Issue: 12 Linguagem: Inglês

10.1007/bf02531178

1558-9307

Per‐Otto Hagen,

Pancreatic function and diabetes

Abstract The compositional specificity of the major diacyl phosphatides, plasmalogens and triglycerides of pig kidney has been determined. The triglycerides have been shown to be esterified predominantly with saturated fatty acids in the 2 position while the phosphatides have predominantly unsaturated fatty acids in this position. Such complete “inversion” of the structure of triglycerides and phospholipids is not normally seen in mammalian tissue and suggests that the synthesis of structural polar lipids involves other steps than the reaction of a diglyceride with CDP‐ethanolamine or CDP‐choline. This marked difference in the fatty acid distribution of the polar lipids and triglycerides of the pig kidney may render this tissue especially suitable for studies on the turnover and synthesis of structural lipids.