Protein-lipid interactions in antipodal plasma membranes of rat colonocytes.
Protein-lipid interactions in antipodal plasma membranes of rat colonocytes.
复制标题
大鼠结肠细胞反足质膜中的蛋白质-脂质相互作用。
DOI:
10.1016/0005-2736(84)90093-2
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发表时间:
1984
期刊:
影响因子:
--
通讯作者:
Keresztes,RS
中科院分区:
文献类型:
--
作者:
Brasitus,TA;Keresztes,RS
The isolation of apical membranes from rat proximal colonic epithelial cells is described. Differential centrifugation yielded a ‘crude’ membrane fraction which was further purified using sucrose density centrifugation. The final membrane fraction was enriched 20–28-fold over homogenate in alkaline phosphatase and cysteine-sensitive alkaline phosphatase specific activities. Lipid-protein interactions and lipid dynamics examined in apical and basolateral membranes prepared from colonocytes demonstrated: (1) apical membrane, as assessed by steady-state fluorescence polarization studies have a low lipid fluidity; (2) colonic basolateral membranes possess a greater lipid fluidity than apical membranes; (3) compositional differences in these antipodal membranes appear to explain these differences in lipid fluidity; (4) fluorescence polarization studies using diphenylhexatriene detect a thermotropic transition at 21–23°C in apical membranes and liposomes prepared from lipid extracts of these membranes; (5) alkaline phosphatase andl-cysteine-sensitive alkaline phosphatase activities appear to be functionally dependent on the physical state of the apical membrane's lipid.
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DOI:
--
发表时间:
1980
期刊:
Biochimica et Biophysica Acta
影响因子:
--
作者:
T. Brasitus;D. Schachter
通讯作者:
D. Schachter
影响因子:
3.2
作者:
B. Rosen;S. L. Hackette
通讯作者:
S. L. Hackette
影响因子:
4.8
作者:
M. Gustin;D. Goodman
通讯作者:
D. Goodman
DOI:
--
发表时间:
1974
期刊:
European Journal of Biochemistry
影响因子:
--
作者:
E. Shechter;L. Letellier;T. Gulik
通讯作者:
T. Gulik
DOI:
10.1016/s0021-9258(19)45187-9
发表时间:
1972
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
G. Siegel;B. Goodwin
通讯作者:
B. Goodwin