STRUCTURES OF GLUCOLIPIDS FROM THE MEMBRANE OF ACHOLEPLASMA-LAIDLAWII STRAIN A-EF22 .2. MONOACYLMONOGLUCOSYLDIACYLGLYCEROL

被引：15

作者：

HAUKSSON, JB

LINDBLOM, G

RILFORS, L

机构：

来源：

BIOCHIMICA ET BIOPHYSICA ACTA-LIPIDS AND LIPID METABOLISM | 1994年 / 1215卷 / 03期

关键词：

GLUCOLIPID STRUCTURE; NMR; (A-LAIDLAWII);

D O I：

10.1016/0005-2760(94)90063-9

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

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 H-1- and C-13-NMR spectroscopy. The structure of the lipid is 1,2-diacyl-3-0-[6-0-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-3-0-[6-0-acyl-(alpha-D-glucopyranosyl)]-sn-glycerol and the two dominating lipids in A. laidlawii, manoglucosyldiacylglycerol and diglucosyldiacylglycerol, are discussed and related to the chemical structure of the lipids.

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页码：341 / 345

页数：5

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