A nuclear magnetic resonance study of sphingomyelin in bilayer systems.
A nuclear magnetic resonance study of sphingomyelin in bilayer systems.
复制标题
双层系统中鞘磷脂的核磁共振研究。
作者：
C. Schmidt;Y. Barenholz;T. E. Thompson
用~ 1H和~（31）P核磁共振谱研究了由两性离子磷脂鞘磷脂组成的单壁小泡的物理性质。的质子线宽和自旋-晶格弛豫时间和鞘磷脂囊泡的化学位移行为的温度变化进行了比较与先前确定的结果为磷脂酰胆碱囊泡。这两个系统之间的差异被解释为鞘磷脂双层中存在分子间和分子内氢键的迹象。
The physical properties of small single-walled vesicles composed of the zwitterionic phospholipid sphingomyelin have been studied using 1H and 31P nuclear magnetic resonance spectroscopy. The temperature variation of proton line widths and spin-lattice relaxation times and the chemical shift behavior for sphingomyelin vesicles are compared with results previously determined for phosphatidylcholine vesicles. Differences between the two systems are interpreted as indications of the presence of both inter- and intramolecular hydrogen bonding in sphingomyelin bilayers.