Microprocessor mediates transcriptional termination of long noncoding RNA transcripts hosting microRNAs.
Microprocessor mediates transcriptional termination of long noncoding RNA transcripts hosting microRNAs.
复制标题
DOI:
10.1038/nsmb.2982
复制
发表时间:
2015-04
影响因子:
16.8
通讯作者:
Jopling, Catherine L.
中科院分区:
文献类型:
--
作者:
Dhir, Ashish;Dhir, Somdutta;Proudfoot, Nick J.;Jopling, Catherine L.
MicroRNA (miRNA) play a major role in the post-transcriptional regulation of gene expression. Mammalian miRNA biogenesis begins with co-transcriptional cleavage of RNA polymerase II (Pol II) transcripts by the Microprocessor complex. While most miRNA are located within introns of protein coding genes, a substantial minority of miRNA originate from long non coding (lnc) RNA where transcript processing is largely uncharacterized. We show, by detailed characterization of liver-specific lnc-pri-miR-122 and genome-wide analysis in human cell lines, that most lnc-pri-miRNA do not use the canonical cleavage and polyadenylation (CPA) pathway, but instead use Microprocessor cleavage to terminate transcription. This Microprocessor inactivation leads to extensive transcriptional readthrough of lnc-pri-miRNA and transcriptional interference with downstream genes. Consequently we define a novel RNase III-mediated, polyadenylation-independent mechanism of Pol II transcription termination in mammalian cells.
登录
查看更多内容
影响因子:
14.9
作者:
Flicek P;Amode MR;Barrell D;Beal K;Billis K;Brent S;Carvalho-Silva D;Clapham P;Coates G;Fitzgerald S;Gil L;Girón CG;Gordon L;Hourlier T;Hunt S;Johnson N;Juettemann T;Kähäri AK;Keenan S;Kulesha E;Martin FJ;Maurel T;McLaren WM;Murphy DN;Nag R;Overduin B;Pignatelli M;Pritchard B;Pritchard E;Riat HS;Ruffier M;Sheppard D;Taylor K;Thormann A;Trevanion SJ;Vullo A;Wilder SP;Wilson M;Zadissa A;Aken BL;Birney E;Cunningham F;Harrow J;Herrero J;Hubbard TJ;Kinsella R;Muffato M;Parker A;Spudich G;Yates A;Zerbino DR;Searle SM
通讯作者:
Searle SM
影响因子:
10.5
作者:
El Hage, Aziz;Koper, Michal;Tollervey, David
通讯作者:
Tollervey, David
影响因子:
4.5
作者:
Cai, XZ;Hagedorn, CH;Cullen, BR
通讯作者:
Cullen, BR
影响因子:
5.3
作者:
Ballarino, Monica;Pagano, Francesca;Bozzoni, Irene
通讯作者:
Bozzoni, Irene
影响因子:
56.9
作者:
Jopling, CL;Yi, MK;Sarnow, P
通讯作者:
Sarnow, P