Emerging molecular functions and novel roles for the DEAD-box protein Dbp5/DDX19 in gene expression.

Emerging molecular functions and novel roles for the DEAD-box protein Dbp5/DDX19 in gene expression.
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死亡盒蛋白Dbp 5/DDX 19在基因表达中的新兴分子功能和新作用

DOI:
10.1007/s00018-020-03680-y
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发表时间:
2021-03
期刊:
Cellular and molecular life sciences : CMLS
影响因子:
--
通讯作者:
Montpetit B
Montpetit B
中科院分区:
其他
文献类型:
--
作者:
Arul Nambi Rajan A;Montpetit B

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死亡盒蛋白(DBP)Dbp5 p是超家族II(SFII)解旋酶的成员,据报道在基因表达中具有多种作用。该酶首先被确定为酿酒酵母中mRNA输出的重要调节因子,现已报道其在非编码RNA输出、翻译、转录和DNA代谢中的功能。蛋白定位于各种细胞隔室(核质、核膜和细胞质)突出了Dbp5p调节RNA生命周期的不同阶段的能力。虽然Dbp5p已经被充分研究了>20年,但关于控制Dbp5p定位、底物选择和基因表达中的功能的机械原理仍然存在几个关键问题。本文旨在全面了解Dbp5p的拟议功能,并评估适应当前已发布数据的模型。
The DEAD-box protein (DBP) Dbp5p, a member of the superfamily II (SFII) helicases, has multiple reported roles in gene expression. First identified as an essential regulator of mRNA export in Saccharomyces cerevisiae, the enzyme now has reported functions in non-coding RNA export, translation, transcription, and DNA metabolism. Localization of the protein to various cellular compartments (nucleoplasm, nuclear envelope, and cytoplasm) highlights the ability of Dbp5p to modulate different stages of the RNA lifecycle. While Dbp5p has been well studied for >20 years, several critical questions remain regarding the mechanistic principles that govern Dbp5p localization, substrate selection, and functions in gene expression. This review aims to take a holistic view of the proposed functions of Dbp5p and evaluate models that accommodate current published data.
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期刊: The Journal of biological chemistry
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