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Regulation of miR-17-92a cluster processing by the microRNA binding protein SND1.

Heinrich, Eva-Marie and Wagner, Jasmin and Krüger, Marcus and John, David and Uchida, Shizuka and Weigand, Julia E. and Suess, Beatrix and Dimmeler, Stefanie (2013):
Regulation of miR-17-92a cluster processing by the microRNA binding protein SND1.
In: FEBS letters, pp. 2405-11, 587, (15), ISSN 1873-3468,
[Article]

Abstract

MicroRNAs are small non-coding RNAs that regulate gene expression. Although all seven members of the miR-17-92a cluster originate from one primary transcript they are differentially expressed suggesting the presence of posttranscriptional regulation. By RNA pulldown and mass spectrometry we identified SND1, a known regulator of edited RNAs, interacting with pre-miR-92a and all mature miR-17-92a members. Hypoxic conditions lead to an elevation of the pri-miR-17-92a transcript and significantly increased levels of the precursors whereas the mature miRs were not significantly changed. SND1 silencing resolved this block in processing and induced an increase in mature miRs. Together, SND1 might be the missing link between hypoxia and the differential regulation of miRNA processing.

Item Type: Article
Erschienen: 2013
Creators: Heinrich, Eva-Marie and Wagner, Jasmin and Krüger, Marcus and John, David and Uchida, Shizuka and Weigand, Julia E. and Suess, Beatrix and Dimmeler, Stefanie
Title: Regulation of miR-17-92a cluster processing by the microRNA binding protein SND1.
Language: English
Abstract:

MicroRNAs are small non-coding RNAs that regulate gene expression. Although all seven members of the miR-17-92a cluster originate from one primary transcript they are differentially expressed suggesting the presence of posttranscriptional regulation. By RNA pulldown and mass spectrometry we identified SND1, a known regulator of edited RNAs, interacting with pre-miR-92a and all mature miR-17-92a members. Hypoxic conditions lead to an elevation of the pri-miR-17-92a transcript and significantly increased levels of the precursors whereas the mature miRs were not significantly changed. SND1 silencing resolved this block in processing and induced an increase in mature miRs. Together, SND1 might be the missing link between hypoxia and the differential regulation of miRNA processing.

Journal or Publication Title: FEBS letters
Volume: 587
Number: 15
Divisions: 10 Department of Biology
10 Department of Biology > Synthetic Genetic Circuits
Date Deposited: 03 Sep 2013 11:24
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