Cyclophilin-40 has a cellular role in the aryl hydrocarbon receptor signaling.

Cyclophilin-40 has a cellular role in the aryl hydrocarbon receptor signaling.
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DOI:
10.1016/j.febslet.2008.08.007
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发表时间:
2008-09-22
期刊:
影响因子:
3.5
通讯作者:
Chan, William K.
Chan, William K.
中科院分区:
生物学3区
文献类型:
--
作者:
Luu, Tony C.;Bhattacharya, Pompeya;Chan, William K.

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CyP40利用杆状病毒表达的蛋白促进含有AhR、Arnt和Dre的凝胶移位复合体的形成。在此,我们报道了CyP40在AhR信号转导中的作用。当MCF-7细胞的CyP40含量减少时,3mc对cyp1a1和CyP1B1的上调也减少,这表明CyP40是最大AhR功能所必需的。CyP40区含有186-215个氨基酸,而不是PPIase和TPR结构域,是形成AhR/Arnt/Dre复合体的关键。3mc处理后,CyP40出现在细胞核中,并似乎促进AhR/Arnt异源二聚体的DRE结合形式。
CyP40 promotes the formation of the gel shift complex that contains AhR, Arnt and DRE using baculovirus expressed proteins. Here we reported that CyP40 plays a role in the AhR signaling. When the CyP40 content in MCF-7 cells is reduced, up-regulation of cyp1a1 and cyp1b1 by 3MC is also reduced, suggesting that CyP40 is essential for maximal AhR function. The CyP40 region containing amino acids 186–215, but not the PPIase and TPR domains, is essential for forming the AhR/Arnt/DRE complex. CyP40 is found in the cell nucleus after 3MC treatment and appears to promote the DRE binding form of the AhR/Arnt heterodimer.
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