Title | Evidence for distinct behaviour of phosphatidylcholine and sphingomyelin at the low density lipoprotein surface |
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Authors | Murphy, H.C., Ala-Korpela, M., White, J.J., Raoof, A., Bell, J.D., Barnard, M.L., Burns, S.P. and Iles, R.A. |
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Abstract | This study demonstrates that the use of high field1H NMR spectroscopy permits individual detection of phosphatidylcholine and sphingomyelin molecules at the surface of native low density lipoprotein (LDL) particles. Distinct behaviour was observed for the choline head group −N(CH3)3resonances of these different phospholipids revealing preferential immobilisation for phosphatidylcholine. This suggests the existence of reversible and irreversible phosphatidylcholine-apolipoprotein B interactions and is consistent with microdomain formation at the surface monolayer of LDL. The novel resonance assignment and results show that1H NMR can provide efficient and practical means for future studies on the structure and dynamics at the LDL surface. |
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Journal | Biochemical and Biophysical Research Communications |
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Journal citation | 234 (3), pp. 733-737 |
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ISSN | 0006-291X |
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Year | 29 May 1997 |
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Publisher | Elsevier |
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Digital Object Identifier (DOI) | https://doi.org/10.1006/bbrc.1997.6634 |
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Publication dates |
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Published | 29 May 1997 |
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