Molecular dissection of nuclear paraspeckles: towards understanding the emerging world of the RNP milieu.

Molecular dissection of nuclear paraspeckles: towards understanding the emerging world of the RNP milieu.
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DOI:
10.1098/rsob.180150
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发表时间:
2018-10-24
期刊:
影响因子:
5.8
通讯作者:
Hirose T
Hirose T
中科院分区:
生物学2区
文献类型:
--
作者:
Nakagawa S;Yamazaki T;Hirose T

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Paraspeckles 是建立在结构性长非编码 RNA NEAT1 上的核体,一系列研究揭示了它们的分子成分、精细的内部结构以及细胞和生理功能。新出现的证据表明,副斑点形成是由含有本质上无序区域的相关RNA结合蛋白的相分离引起的,这会诱导副斑点成分沿着NEAT1有序排列。在这篇综述中,我们将总结过去几十年来副斑点研究的历史,特别是关注核体的功能和结构。我们还讨论了形成“RNP milieux”(大型且灵活的相分离核糖核蛋白复合物)的长非编码 RNA 的未来研究方向。
Paraspeckles are nuclear bodies built on an architectural long noncoding RNA, NEAT1, and a series of studies have revealed their molecular components, fine internal structures and cellular and physiological functions. Emerging lines of evidence suggest that paraspeckle formation is elicited by phase separation of associating RNA-binding proteins containing intrinsically disordered regions, which induce ordered arrangement of paraspeckle components along NEAT1. In this review, we will summarize the history of paraspeckle research over the last couple of decades, especially focusing on the function and structure of the nuclear bodies. We also discuss the future directions of research on long noncoding RNAs that form ‘RNP milieux’, large and flexible phase-separated ribonucleoprotein complexes.
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