Elucidation of slow motions in glycoglycerolipid bilayers by two-dimensional solid-state deuteron NMR

Two-dimensional solid-state deuteron NMR spectroscopy has been used to demonstrate the presence of a slow whole molecule motion in the gel phase of hydrated multibilayers of the glycolipid 1,2-di-O-tetradecyl-3-O-(β-D-glucopyranosyl)- sn-glycerol (β-DTGL) at 35°C. The correlation time for the motion...

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Bibliographic Details
Published in:Chemical physics letters 1990, Vol.165 (2), p.162-167
Main Authors: Auger, Michèle, Jarrell, Harold C.
Format: Article
Language:English
Subjects:
Artificial membranes and reconstituted systems
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Membrane physicochemistry
Molecular biophysics
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Summary:Two-dimensional solid-state deuteron NMR spectroscopy has been used to demonstrate the presence of a slow whole molecule motion in the gel phase of hydrated multibilayers of the glycolipid 1,2-di-O-tetradecyl-3-O-(β-D-glucopyranosyl)- sn-glycerol (β-DTGL) at 35°C. The correlation time for the motion was determined to be of the order of milliseconds. Comparison of the experimental and simulated ridge patterns suggest that a large angle jump about the long molecular axis can best account for the 2D exchange spectra of β-DTGL in the gel phase in comparison to small step Brownian diffusion.
ISSN:0009-2614
1873-4448
DOI:10.1016/0009-2614(90)85422-9