MicroRNA-independent roles of the RNase III enzymes Drosha and Dicer

The ribonuclease III enzymes Drosha and Dicer are renowned for their central roles in the biogenesis of microRNAs (miRNAs). For many years, this has overshadowed the true versatility and importance of these enzymes in the processing of other RNA substrates. For example, Drosha also recognizes and cl...

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Main Authors: Timothy M. Johanson, Andrew M. Lew, Mark M. W. Chong
Format: Article
Language:English
Published: The Royal Society 2013-01-01
Series:Open Biology
Subjects:
Online Access:https://royalsocietypublishing.org/doi/pdf/10.1098/rsob.130144
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author Timothy M. Johanson
Andrew M. Lew
Mark M. W. Chong
author_facet Timothy M. Johanson
Andrew M. Lew
Mark M. W. Chong
author_sort Timothy M. Johanson
collection DOAJ
description The ribonuclease III enzymes Drosha and Dicer are renowned for their central roles in the biogenesis of microRNAs (miRNAs). For many years, this has overshadowed the true versatility and importance of these enzymes in the processing of other RNA substrates. For example, Drosha also recognizes and cleaves messenger RNAs (mRNAs), and potentially ribosomal RNA. The cleavage of mRNAs occurs via recognition of secondary stem-loop structures similar to miRNA precursors, and is an important mechanism of repressing gene expression, particularly in progenitor/stem cell populations. On the other hand, Dicer also has critical roles in genome regulation and surveillance. These include the production of endogenous small interfering RNAs from many sources, and the degradation of potentially harmful short interspersed element and viral RNAs. These findings have sparked a renewed interest in these enzymes, and their diverse functions in biology.
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spelling doaj.art-c82ef0a58456404ead4ad306d5653d992022-12-21T23:53:35ZengThe Royal SocietyOpen Biology2046-24412013-01-0131010.1098/rsob.130144130144MicroRNA-independent roles of the RNase III enzymes Drosha and DicerTimothy M. JohansonAndrew M. LewMark M. W. ChongThe ribonuclease III enzymes Drosha and Dicer are renowned for their central roles in the biogenesis of microRNAs (miRNAs). For many years, this has overshadowed the true versatility and importance of these enzymes in the processing of other RNA substrates. For example, Drosha also recognizes and cleaves messenger RNAs (mRNAs), and potentially ribosomal RNA. The cleavage of mRNAs occurs via recognition of secondary stem-loop structures similar to miRNA precursors, and is an important mechanism of repressing gene expression, particularly in progenitor/stem cell populations. On the other hand, Dicer also has critical roles in genome regulation and surveillance. These include the production of endogenous small interfering RNAs from many sources, and the degradation of potentially harmful short interspersed element and viral RNAs. These findings have sparked a renewed interest in these enzymes, and their diverse functions in biology.https://royalsocietypublishing.org/doi/pdf/10.1098/rsob.130144rnase iii enzymesdroshadicermicrornarna processing
spellingShingle Timothy M. Johanson
Andrew M. Lew
Mark M. W. Chong
MicroRNA-independent roles of the RNase III enzymes Drosha and Dicer
Open Biology
rnase iii enzymes
drosha
dicer
microrna
rna processing
title MicroRNA-independent roles of the RNase III enzymes Drosha and Dicer
title_full MicroRNA-independent roles of the RNase III enzymes Drosha and Dicer
title_fullStr MicroRNA-independent roles of the RNase III enzymes Drosha and Dicer
title_full_unstemmed MicroRNA-independent roles of the RNase III enzymes Drosha and Dicer
title_short MicroRNA-independent roles of the RNase III enzymes Drosha and Dicer
title_sort microrna independent roles of the rnase iii enzymes drosha and dicer
topic rnase iii enzymes
drosha
dicer
microrna
rna processing
url https://royalsocietypublishing.org/doi/pdf/10.1098/rsob.130144
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AT andrewmlew micrornaindependentrolesofthernaseiiienzymesdroshaanddicer
AT markmwchong micrornaindependentrolesofthernaseiiienzymesdroshaanddicer