Menin: a scaffold protein that controls gene expression and cell signaling.

Menin: a scaffold protein that controls gene expression and cell signaling.
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DOI:
10.1016/j.tibs.2013.05.005
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发表时间:
2013-08
影响因子:
13.8
通讯作者:
Hua, Xianxin
Hua, Xianxin
中科院分区:
生物学1区
文献类型:
--
作者:
Matkar, Smita;Thiel, Austin;Hua, Xianxin

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该蛋白由MEN1基因编码,该基因在患有多发性内分泌肿瘤1型(MEN1)综合征的患者中发生突变。虽然薄荷素在内分泌器官中起到肿瘤抑制的作用,但在小鼠模型中白血病的转化需要它。Menin具有这些二分功能,可能是因为它既可以正向和负向地调节基因的表达,也可以与多种功能不同的蛋白质相互作用。在这里,我们回顾了最新的进展,了解分子机制,通过它的功能。具有不同结合伙伴的Menin的晶体结构表明,Menin是一种关键的支架蛋白,它与不同的结合伙伴在功能上相互作用,调节基因的转录,并与多种信号通路相互作用。
The protein menin is encoded by the MEN1 gene, which is mutated in patients with multiple endocrine neoplasia type 1 (MEN1) syndrome. Although menin acts as a tumor suppressor in endocrine organs, it is required for leukemic transformation in mouse models. Menin possesses these dichotomous functions likely because it can both positively and negatively regulate gene expression as well as interact with a multitude of proteins with diverse functions. Here we review the recent progress in understanding the molecular mechanisms by which menin functions. The crystal structures of menin with different binding partners reveal that menin is a key scaffold protein that functionally crosstalks with various partners to regulate gene transcription and interplay with multiple signaling pathways.
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