A Cellular Function for the RNA-Interference Enzyme Dicer in the Maturation of the let-7 Small Temporal RNA
@article{Hutvagner2001ACF, title={A Cellular Function for the RNA-Interference Enzyme Dicer in the Maturation of the let-7 Small Temporal RNA}, author={Gyorgy Hutvagner and Juanita Mclachlan and Amy E Pasquinelli and Eva Balint and Thomas Tuschl and Phillip D. Zamore}, journal={Science}, year={2001}, volume={293}, pages={834 - 838} }
The 21-nucleotide small temporal RNA (stRNA) let-7regulates developmental timing in Caenorhabditis elegans and probably in other bilateral animals. We present in vivo and in vitro evidence that in Drosophila melanogaster a developmentally regulated precursor RNA is cleaved by an RNA interference-like mechanism to produce mature let-7 stRNA. Targeted destruction in cultured human cells of the messenger RNA encoding the enzyme Dicer, which acts in the RNA interference pathway, leads to…
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References
SHOWING 1-10 OF 12 REFERENCES
RNA interference is mediated by 21- and 22-nucleotide RNAs.
- BiologyGenes & development
- 2001
It is demonstrated that 21- and 22-nt RNA fragments are the sequence-specific mediators of RNAi, and evidence that the direction of dsRNA processing determines whether sense or antisense target RNA can be cleaved by the siRNA-protein complex is provided.
The lin-4 regulatory RNA controls developmental timing in Caenorhabditis elegans by blocking LIN-14 protein synthesis after the initiation of translation.
- Biology, ChemistryDevelopmental biology
- 1999
The results indicate that association of lin-4 RNA with the 3' UTR of Lin-14 mRNA permits normal biogenesis of lin -14 mRNA, and normal translational initiation, but inhibits step(s) thereafter, such as translational elongation and/or the release of stable LIN-14 protein.
A species of small antisense RNA in posttranscriptional gene silencing in plants.
- BiologyScience
- 1999
The 25-nucleotide antisense RNA detected in transgene-induced PTGS is likely synthesized from an RNA template and may represent the specificity determinant of PTGS.
Function, mechanism and regulation of bacterial ribonucleases.
- BiologyFEMS microbiology reviews
- 1999
RNase III provides an important model with which to understand mechanisms of RNA maturation, RNA decay, and gene regulation, and is regulated by phosphorylation in the T7 phage- infected cell.
Inducible expression of double-stranded RNA directs specific genetic interference in Drosophila
- BiologyCurrent Biology
- 2000
Posttranscriptional regulation of the heterochronic gene lin-14 by lin-4 mediates temporal pattern formation in C. elegans
- BiologyCell
- 1993
Incorporation of terminal phosphorothioates into oligonucleotides.
- Chemistry, BiologyNucleic acids research
- 1998
3'- and 5'-terminal phosphorothioates are introduced into heptameric oligonucleotides and their post-synthetic modification with several reporter groups and their reactivity for conjugation with cholesterol, bimane and for sulphydryl exchange are described.