Analysis of estrogen receptor a signaling complex at the plasma membrane

被引:0
|
作者
Azuma, K [1 ]
Horie, K [1 ]
Inoue, S [1 ]
Ouchi, Y [1 ]
Sakai, R [1 ]
机构
[1] Natl Canc Ctr, Res Inst, Div Growth Factor, Chuo Ku, Tokyo 1040045, Japan
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R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
There is accumulating evidence that the estrogen receptor (ER) can transduce specific signals at the plasma membrane. We tried to clarify the biological function of ER as a signaling molecule by identifying proteins that interact with the membrane-localized ER. The AF-1 and AF-2 domains of ER alpha with or without the membrane-targeting sequence were stably expressed in the breast cancer cell line, MCF-7. alpha- and beta-tubulins and heat shock protein 70 were identified as the AF-1-associated proteins. Of these, tubulins are associated only with membrane-targeted AF-1.
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页码:507 / 510
页数:4
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