A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Reference Report

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Citation Rehwinkel, J., Natalin, P., Stark, A., Brennecke, J., Cohen, S.M., Izaurralde, E. (2006). Genome-wide analysis of mRNAs regulated by Drosha and Argonaute proteins in Drosophila melanogaster.  Mol. Cell. Biol. 26(8): 2965--2975. (Export to RIS)
FlyBase ID FBrf0191204
Publication Type Research paper
PubMed ID 16581772
PubMed Abstract RNA silencing pathways are conserved gene regulation mechanisms that elicit decay and/or translational repression of mRNAs complementary to short interfering RNAs and microRNAs (miRNAs). The fraction of the transcriptome regulated by these pathways is not known, but it is thought that each miRNA may have hundreds of targets. To identify transcripts regulated by silencing pathways at the genomic level, we examined mRNA expression profiles in Drosophila melanogaster cells depleted of four Argonaute paralogs (i.e., AGO1, AGO2, PIWI, or Aubergine) that play essential roles in RNA silencing. We also profiled cells depleted of the miRNA-processing enzyme Drosha. The results reveal that transcripts differentially expressed in Drosha-depleted cells have highly correlated expression in the AGO1 knockdown and are significantly enriched in predicted and validated miRNA targets. The levels of a subset of miRNA targets are also regulated by AGO2. Moreover, AGO1 and AGO2 silence the expression of a common set of mobile genetic elements. Together, these results indicate that the functional overlap between AGO1 and AGO2 in Drosophila is more important than previously thought.
DOI 10.1128/MCB.26.8.2965-2975.2006
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Language of Publication English
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Publication Type Journal
Abbreviation Mol. Cell. Biol.
Title Molecular and Cellular Biology
Publication Year 1981-
ISBN/ISSN 0270-7306
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