AFFINITY OF CHOLESTEROL FOR PHOSPHATIDYLCHOLINE AND SPHINGOMYELIN

被引:91
作者
LANGE, Y
DALESSANDRO, JS
SMALL, DM
机构
[1] Biophysics Division, Department of Medicine, Boston University School of Medicine, Boston
关键词
Cholesterol; Phase transition; Phosphatidylcholine; Sphingomyelin;
D O I
10.1016/0005-2736(79)90127-5
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Erythrocyte ghosts were incubated with sonicated vesicles and the uptake of cholesterol by vesicles allowed to proceed to equilibrium. The experiments were carried out for a series of phospholipids at different temperatures. The equilibrium partition of cholesterol between ghosts and single shelled vesicles provided a measure of the relative affinities of cholesterol for the different phospholipids studied. It was found that the affinity of cholesterol for dipalmitoyl phosphatidylcholine was the same as that for N-palmitoyl sphingomyelin both at temperatures above and below the gel to liquid crystalline transition temperature of these phospholipids. © 1979.
引用
收藏
页码:388 / 398
页数:11
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