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. 1992 Aug;63(2):428–437. doi: 10.1016/S0006-3495(92)81620-X

Influence of the membrane surface on glycolipid conformation and dynamics. An interpretation of NMR results using conformational energy calculations.

B G Winsborrow 1, J R Brisson 1, I C Smith 1, H C Jarrell 1
PMCID: PMC1262166  PMID: 1420888

Abstract

Glycolipids constitute an important class of biomolecules that are involved in biomolecular recognition. The importance of carbohydrate head group conformation in such processes is well recognized. Glycolipids typically occur as minor components of the complex heterogeneous matrix of a biological membrane. As a result, the membrane surface may not only influence head group conformation but also serves as a spatial frame in which the glycolipid is oriented and recognized. In this study, conformational energy calculations have been used to assess the conformational space available to the glucose head group of 1,2-di-O-tetradecyl-3-O-(beta-D-glucopyranosyl)-sn-glycerol (beta-DTGL) in a liquid-crystalline membrane matrix. 2H NMR quadrupolar splittings are calculated and compared with those observed experimentally. This study demonstrates the importance of including surface interactions when considering the conformational space accessible to cell surface carbohydrates. The empirical approach taken here provides considerable insight at the molecular level, and offers the possibility of exploring even more complex systems.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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