Glyceroglucolipids of the human saliva.
Seven individual glycolipids (I--VII) have been isolated from the lipid extract of human saliva. All glycolipids contained glucose, glyceryl ethers and fatty acids, and differed from each other primarily with respect to the number of glucose residues. In addition, glycolipid V contained also the sulfate ester group. The structures of these glycolipids were identified by partial acid and alkaline hydrolysis, oxidation with periodate and chromium trioxide and methylation studies, as: Glc(alpha1 leads to 3)-diglyceride (glycolipid I), Glc(alpha1 leads to 6)Glc(alpha1 leads to 3)-diglyceride (glycolipids II and III), Glc(alpha1 leads to 6)Glc(alpha1 leads to 6)Glc(alpha1 leads to 3)-diglyceride (glycolipid IV), SO3H-6Glc(alpha1 leads to 6)Glc(alpha1 leads to 3)-diglyceride (glycolipid V), Glc(alpha1 leads to 6)Glc(alpha1 leads to 6)Glc(alpha1 leads to 6)Glc(alpha1 leads to 6)Glc(alpha1 leads to 3)-diglyceride (glycolipid VI) and Glc(alpha1 leads to 6)Glc(alpha1 leads to 6)Glc(alpha1 leads to 6)Glc(alpha1 leads to 6)Glc(alpha1 leads to 6)Glc(alpha1 lead to 6)Glc(alpha1 leads to 6)Glc(alpha1 leads to 3)-diglyceride (glycolipid VII). Diglyceride portion of these compounds consists of 1-O-alkyl-2-O-acyl-glycerol with the docosanoate and glyceryl-monodocosyl being the predominant acyl and alkyl components.[1]References
- Glyceroglucolipids of the human saliva. Slomiany, B.L., Slomiany, A., Glass, G.B. Eur. J. Biochem. (1978) [Pubmed]
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