TREX-2 mRNA Export Complex Interacts with HLB Component FLASH and Is Recruited to Processed Histone mRNAs

IF 0.8 4区 生物学 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY
M. M. Kurshakova, Y. A. Yakusheva,  S. G. Georgieva
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引用次数: 0

Abstract

Disruption of the normal expression of histone genes lead to the development of various pathologies. One of the key stages of gene expression is the export of mRNA from the nucleus to the cytoplasm. The TREX-2 protein complex regulates the export of the majority of poly(A)-containing mRNAs. Previously, we demonstrated that TREX-2 is also associated with histone mRNP particles and participates in the nuclear export of histone mRNAs, which lack poly(A)-tails. In this study we investigated the interaction of TREX-2 proteins with the histone mRNA processing machinery. It was shown that TREX-2 interacts with the FLASH protein, a key protein of the specialized histone mRNA processing machinery and a component of the histone locus body (HLB). The TREX-2 complex is recruited through its interaction with FLASH to processed histone mRNAs.

Abstract Image

TREX-2 mRNA输出复合物与HLB成分FLASH相互作用,并被招募到加工的组蛋白mRNA中。
组蛋白基因正常表达的破坏导致各种病理的发展。基因表达的关键阶段之一是从细胞核向细胞质输出mRNA。TREX-2蛋白复合物调节大多数含聚(A) mrna的输出。先前,我们证明TREX-2也与组蛋白mRNP颗粒相关,并参与缺乏聚(A)尾部的组蛋白mrna的核输出。在这项研究中,我们研究了TREX-2蛋白与组蛋白mRNA加工机制的相互作用。结果表明,TREX-2与FLASH蛋白相互作用,FLASH蛋白是组蛋白mRNA特殊加工机制的关键蛋白,也是组蛋白位点体(HLB)的一个组成部分。TREX-2复合体通过与FLASH的相互作用来招募加工组蛋白mrna。
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来源期刊
Doklady Biochemistry and Biophysics
Doklady Biochemistry and Biophysics 生物-生化与分子生物学
CiteScore
1.60
自引率
12.50%
发文量
68
审稿时长
6-12 weeks
期刊介绍: Doklady Biochemistry and Biophysics is a journal consisting of English translations of articles published in Russian in biochemistry and biophysics sections of the Russian-language journal Doklady Akademii Nauk. The journal''s goal is to publish the most significant new research in biochemistry and biophysics carried out in Russia today or in collaboration with Russian authors. The journal accepts only articles in the Russian language that are submitted or recommended by acting Russian or foreign members of the Russian Academy of Sciences. The journal does not accept direct submissions in English.
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