Targeting of Ran: variation on a common theme?

Targeting of Ran: variation on a common theme?
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兰的目标:共同主题的变化?

DOI:
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发表时间:
2001
影响因子:
4
通讯作者:
E. Hurt
E. Hurt
中科院分区:
生物学2区
文献类型:
--
作者:
M. Künzler;E. Hurt

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Ran GTPase 在核质运输中发挥着关键作用。在其 GTP 结合形式中,它直接与核转运受体的 importin beta 家族成员相互作用并调节它们与货物的关联。无细胞高等真核生物系统的研究表明,Ran 在有丝分裂过程中纺锤体和核膜形成中发挥着额外的作用。然而,直到最近,人们还不知道这些细胞过程中的 Ran 靶蛋白。一些研究小组现已确定输入β是有丝分裂纺锤体形成过程中Ran的一个重要靶标。这一发现表明 Ran 使用相同的效应器来调节不同的细胞过程。
The Ran GTPase plays a key role in nucleocytoplasmic transport. In its GTP-bound form, it directly interacts with members of the importin beta family of nuclear transport receptors and modulates their association with cargo. Work in cell-free higher-eukaryote systems has demonstrated additional roles for Ran in spindle and nuclear envelope formation during mitosis. However, until recently, no Ran-target proteins in these cellular processes were known. Several groups have now identified importin beta as one important target of Ran during mitotic spindle formation. This finding suggests that Ran uses the same effectors to regulate different cellular processes.
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