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NMR studies of memb...
NMR studies of membranes composed of glycolipids and phospholipids
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- Castro, Vasco (author)
- Stockholms universitet,Institutionen för fysikalisk kemi, oorganisk kemi och strukturkemi
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Dvinskikh, Sergey V. (author)
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- Widmalm, Göran (author)
- Stockholms universitet,Institutionen för organisk kemi
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- Sandstrom, Dick (author)
- Stockholms universitet,Institutionen för fysikalisk kemi, oorganisk kemi och strukturkemi
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- Maliniak, Arnold (author)
- Stockholms universitet,Institutionen för fysikalisk kemi, oorganisk kemi och strukturkemi
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(creator_code:org_t)
- Elsevier BV, 2007
- 2007
- English.
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In: Biochimica et Biophysica Acta - Biomembranes. - : Elsevier BV. - 0005-2736 .- 1879-2642. ; 1768, s. 2432-2437:1768, s. 2432-2437
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https://urn.kb.se/re...
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Abstract
Subject headings
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- Lipid membranes composed of monogalactosyldiacylglycerol (MGDG) and dimyristoylphosphatidylcholine (DMPC) were studied by means of NMR spectroscopy. The macroscopic phase behaviour was investigated by P-31 NMR under stationary conditions, whereas microscopic properties such as segmental ordering were probed by two-dimensional H-1-C-13 separated local field experiments under magic-angle spinning conditions. Our results clearly show that ordering/disordering effects occur for the headgroups as well as for the acyl chains when the sample composition is varied. In particular, the H-1-C-13 dipolar couplings within the galactose headgroup of MGDG exhibited significant concentration dependence.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- solid-state NMR
- carbon-13
- phosphorus-31
- dipolar couplings
- separated local field
- lyotropic liquid crystals
- biomembranes
- nuclear-magnetic-resonance
- heteronuclear dipolar couplings
- field-cycling nmr
- biological-membranes
- lipid-bilayers
- model membranes
- mas nmr
- monogalactosyl diglyceride
- cross-polarization
- segmental order
Publication and Content Type
- ref (subject category)
- art (subject category)
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