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  • Title: Structures of glucolipids from the membrane of Acholeplasma laidlawii strain A-EF22. II. Monoacylmonoglucosyldiacylglycerol.
    Author: Hauksson JB, Lindblom G, Rilfors L.
    Journal: Biochim Biophys Acta; 1994 Dec 08; 1215(3):341-5. PubMed ID: 7811721.
    Abstract:
    The structure of one glucolipid from the membrane of Acholeplasma laidlawii, strain A-EF22, was determined. This glucolipid is synthesized only when a large fraction of saturated, straight-chain fatty acids are incorporated into the membrane lipids of strain A-EF22. The lipid was studied by 1H- and 13C-NMR spectroscopy. The structure of the lipid is 1,2-diacyl-3-O-[6-O-acyl-(alpha-D-glucopyranosyl)]-sn-glycerol. The result for this lipid shows that a previously published structure, based on incomplete chemical analyses, was incorrect. The phase equilibria for 1,2-diacyl-3-O-[6-O-acyl-(alpha-D-glucopyranosyl)]- sn-glycerol and the two dominating lipids in A. laidlawii, monoglucosyldiacylglycerol and diglucosyldiacylglycerol, are discussed and related to the chemical structure of the lipids.
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