Asymmetry in the assembly of the RNAi enzyme complex.
Reads0
Chats0
TLDR
It is shown that the two strands of an siRNA duplex are not equally eligible for assembly into RISC, and it is suggested that single-stranded miRNAs are initially generated as siRNA-like duplexes whose structures predestine one strand to enter the RISC and the other strand to be destroyed.About:
This article is published in Cell.The article was published on 2003-10-17 and is currently open access. It has received 3045 citations till now. The article focuses on the topics: RISC complex & Trans-acting siRNA.read more
Citations
More filters
Journal ArticleDOI
MicroRNAs: Genomics, Biogenesis, Mechanism, and Function
TL;DR: Although they escaped notice until relatively recently, miRNAs comprise one of the more abundant classes of gene regulatory molecules in multicellular organisms and likely influence the output of many protein-coding genes.
Journal ArticleDOI
MicroRNAs: small RNAs with a big role in gene regulation
Lin He,Gregory J. Hannon +1 more
TL;DR: Two founding members of the microRNA family were originally identified in Caenorhabditis elegans as genes that were required for the timed regulation of developmental events and indicate the existence of multiple RISCs that carry out related but specific biological functions.
Journal Article
Oncomirs : microRNAs with a role in cancer
TL;DR: I MicroRNAs (miRNAs) are an abundant class of small non-protein-coding RNAs that function as negative gene regulators as discussed by the authors, and have been shown to repress the expression of important cancer-related genes and might prove useful in the diagnosis and treatment of cancer.
Journal ArticleDOI
Oncomirs — microRNAs with a role in cancer
TL;DR: Evidence has shown that miRNA mutations or mis-expression correlate with various human cancers and indicates that miRNAs can function as tumour suppressors and oncogenes.
Journal ArticleDOI
Microarray analysis shows that some microRNAs downregulate large numbers of target mRNAs
Lee P. Lim,Nelson C. Lau,Philip W. Garrett-engele,Andrew Grimson,Janell M. Schelter,John C. Castle,David P. Bartel,Peter S. Linsley,Jason M. Johnson +8 more
TL;DR: These results suggest that metazoan miRNAs can reduce the levels of many of their target transcripts, not just the amount of protein deriving from these transcripts, and seem to downregulate a far greater number of targets than previously appreciated.
References
More filters
Journal ArticleDOI
Potent and specific genetic interference by double-stranded RNA in Caenorhabditis elegans
Andrew Fire,SiQun Xu,Mary K. Montgomery,Steven A. Kostas,Steven A. Kostas,Samuel E. Driver,Craig C. Mello +6 more
TL;DR: To their surprise, it was found that double-stranded RNA was substantially more effective at producing interference than was either strand individually, arguing against stochiometric interference with endogenous mRNA and suggesting that there could be a catalytic or amplification component in the interference process.
Journal ArticleDOI
Mfold web server for nucleic acid folding and hybridization prediction
TL;DR: The objective of this web server is to provide easy access to RNA and DNA folding and hybridization software to the scientific community at large by making use of universally available web GUIs (Graphical User Interfaces).
Journal ArticleDOI
The C. elegans heterochronic gene lin-4 encodes small RNAs with antisense complementarity to lin-14
TL;DR: Two small lin-4 transcripts of approximately 22 and 61 nt were identified in C. elegans and found to contain sequences complementary to a repeated sequence element in the 3' untranslated region (UTR) of lin-14 mRNA, suggesting that lin- 4 regulates lin- 14 translation via an antisense RNA-RNA interaction.
Journal ArticleDOI
Role for a bidentate ribonuclease in the initiation step of RNA interference
TL;DR: Dicer is a member of the RNase III family of nucleases that specifically cleave double-stranded RNAs, and is evolutionarily conserved in worms, flies, plants, fungi and mammals, and has a distinctive structure, which includes a helicase domain and dualRNase III motifs.
Journal ArticleDOI
A System for Stable Expression of Short Interfering RNAs in Mammalian Cells
TL;DR: It is shown that siRNA expression mediated by this vector causes efficient and specific down-regulation of gene expression, resulting in functional inactivation of the targeted genes.