Cholesterol transfer from small and large unilamellar vesicles.

Cholesterol transfer from small and large unilamellar vesicles.
复制标题

胆固醇从小和大的单层囊泡转移。

DOI:
10.1016/0005-2736(84)90246-3
复制
发表时间:
1984
期刊:
Biochimica et biophysica acta
影响因子:
--
通讯作者:
Phillips,MC
Phillips,MC
中科院分区:
--
文献类型:
--
作者:
McLean,LR;Phillips,MC

文献摘要

参考文献

被引文献

相似文献

在37°C下,比较[14 C]胆固醇从小的和大的单层胆固醇/蛋黄磷脂酰胆碱囊泡转移到共同囊泡受体的速率。相同胆固醇浓度(20摩尔%)的囊泡之间的胆固醇的交换率没有从供体囊泡含有20摩尔%的胆固醇转移到蛋黄PC囊泡的速率不同。此外,[14 C]胆固醇从含有15 mol%双十六烷基磷酸(赋予负电荷)的囊泡转移的速率与从中性囊泡转移的速率没有不同。然而,[14 C]胆固醇从大单层供体囊泡转移的半衰期(10.2 h,80 nm直径)比小单层囊泡(2.3 h,23 nm直径)大约5倍。这些数据表明,在小的单层囊泡中增加的曲率减少胆固醇-最近邻相互作用,以允许胆固醇更快速地转移到水相中。
The rates of transfer of [14C]cholesterol from small and large unilamellar cholesterol/egg yolk phosphatidylcholine vesicles to a common vesicle acceptor were compared at 37°C. The rate of exchange of cholesterol between vesicles of identical cholesterol concentrations (20 mol%) did not differ from the rate of transfer from donor vesicles containing 20 mol% cholesterol to egg yolk PC vesicles. Further, the rate of transfer of [14C]cholesterol from vesicles containing 15 mol% dicetyl phosphate (to confer a negative charge) was not different from the rate of transfer from neutral vesicles. However, the half-time for transfe of [14C]cholesterol from large unilamellar donor vesicles was about 5-times greater (10.2 h, 80 nm diameter) than from small unilamellar vesicles (2.3 h, 23 nm diameter). These data suggest that increased curvature in small unilamellar vesicles reduces cholesterol-nearest neighbor interactions to allow a more rapid transfer of cholesterol into the aqueous phase.
交换反应动力学
DOI: --
发表时间: 1938
期刊: Nature
影响因子: 64.8
作者:
H. Mckay
通讯作者: H. Mckay
DOI: 10.1021/bi00260a022
发表时间: 1982-08
期刊: Biochemistry
影响因子: 2.9
作者:
L. McLean;M. Phillips
通讯作者: L. McLean;M. Phillips
胆固醇交换的多样性通过溶解到水中来解释
DOI: --
发表时间: 1982
期刊: Nature
影响因子: 64.8
作者:
E. Bojesen
通讯作者: E. Bojesen
DOI: 10.1021/bi00507a028
发表时间: 1981-01-01
期刊: BIOCHEMISTRY
影响因子: 2.9
作者:
MIMMS, LT;ZAMPIGHI, G;REYNOLDS, JA
通讯作者: REYNOLDS, JA
DOI: 10.1016/0005-2736(80)90558-1
发表时间: 1980-01-01
期刊: BIOCHIMICA ET BIOPHYSICA ACTA
影响因子: --
作者:
SZOKA, F;OLSON, F;PAPAHADJOPOULOS, D
通讯作者: PAPAHADJOPOULOS, D