BROWSE

Related Scientist

hur,junho's photo.

hur,junho
유전체교정연구단
more info

ITEM VIEW & DOWNLOAD

A novel model of THO/TREX loading onto target RNAs in metazoan gene expression

Cited 1 time in webofscience Cited 2 time in scopus
743 Viewed 160 Downloaded
Title
A novel model of THO/TREX loading onto target RNAs in metazoan gene expression
Author(s)
Hur J.K.; Chung Y.D.
Subject
Drosophila, ; Dual-strand piRNA cluster, ; PiRNA, ; RDC (Rhino-Deadlock-Cutoff) complex, ; THO/TREX
Publication Date
2016-07
Journal
BMB REPORTS, v.49, no.7, pp.355 - 356
Publisher
KOREAN SOCIETY BIOCHEMISTRY & MOLECULAR BIOLOGY
Abstract
The THO/TREX complex consists of several conserved subunits and is required for mRNA export. In metazoans, THO/TREX binds a subset of mRNAs during RNA splicing, and facilitates their nuclear export. How THO/TREX selects RNA targets is, however, incompletely understood. In our recent study, we reported that THO is loaded onto Piwi-interacting RNA (piRNA) precursor transcripts independent of splicing, and facilitates convergent transcription in Drosophila ovary. The precursors are later processed into mature piRNAs, small noncoding RNAs that silence transposable elements (TEs). We observed that piRNAs originating from dual-strand clusters, where precursors are transcribed from both strands, were specifically affected by THO mutation. Analysis of THO-bound RNAs showed enrichment of dual-strand cluster transcripts. Interestingly, THO loading onto piRNA precursors was dependent on Cutoff (Cuff), which comprises the Rhino-Deadlock-Cutoff (RDC) complex that is recruited to dual-strand clusters by recognizing H3K9me3 and licenses convergent transcription from he cluster. We also found that THO mutation affected transcription from dualstrand clusters. Therefore, we concluded that THO/TREX is recruited to dual-strand piRNA clusters, independent of splicing events, via multi-protein interactions with chromatin structure. Then, it facilitates transcription likely by suppressing premature termination to ensure adequate expression of piRNA precursors. © 2016 by the The Korean Society for Biochemistry and Molecular Biology
URI
https://pr.ibs.re.kr/handle/8788114/5628
DOI
10.5483/BMBRep.2016.49.7.099
ISSN
1976-6696
Appears in Collections:
Center for Genome Engineering(유전체 교정 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
성과추가_1607_허준호_BMB049-07-01.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse