C19MC microRNAs are processed from introns of large Pol-II, non-protein-coding transcripts.
C19MC microRNAs are processed from introns of large Pol-II, non-protein-coding transcripts.
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DOI:
10.1093/nar/gkp205
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发表时间:
2009-06
影响因子:
14.9
通讯作者:
Cavaillé J
中科院分区:
文献类型:
--
作者:
Bortolin-Cavaillé ML;Dance M;Weber M;Cavaillé J
MicroRNAs are tiny RNA molecules that play important regulatory roles in a broad range of developmental, physiological or pathological processes. Despite recent progress in our understanding of miRNA processing and biological functions, little is known about the regulatory mechanisms that control their expression at the transcriptional level. C19MC is the largest human microRNA gene cluster discovered to date. This 100-kb long cluster consists of 46 tandemly repeated, primate-specific pre-miRNA genes that are flanked by Alu elements (Alus) and embedded within a ∼400- to 700-nt long repeated unit. It has been proposed that C19MC miRNA genes are transcribed by RNA polymerase III (Pol-III) initiating from A and B boxes embedded in upstream Alu repeats. Here, we show that C19MC miRNAs are intron-encoded and processed by the DGCR8-Drosha (Microprocessor) complex from a previously unidentified, non-protein-coding Pol-II (and not Pol-III) transcript which is mainly, if not exclusively, expressed in the placenta.
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DOI:
10.1146/annurev.pathol.4.110807.092222
发表时间:
2009
期刊:
Annual review of pathology
影响因子:
--
作者:
Lee YS;Dutta A
通讯作者:
Dutta A
影响因子:
4.5
作者:
Cai, XZ;Hagedorn, CH;Cullen, BR
通讯作者:
Cullen, BR
影响因子:
5.6
作者:
HESS, J;PEREZSTABLE, C;SHEN, CKJ
通讯作者:
SHEN, CKJ
影响因子:
30.8
作者:
Bentwich, I;Avniel, A;Bentwich, Z
通讯作者:
Bentwich, Z
影响因子:
4.8
作者:
Braglia, P;Percudani, R;Dieci, G
通讯作者:
Dieci, G