Revisiting the principles of microRNA target recognition and mode of action
Top Cited Papers
- 15 January 2009
- journal article
- review article
- Published by Springer Science and Business Media LLC in Nature Reviews Molecular Cell Biology
- Vol. 10 (2), 141-148
- https://doi.org/10.1038/nrm2619
Abstract
General principles that govern how microRNAs select their targets and determine their mode of action are being challenged by recent findings in plant and animal systems. A common shortcoming of studies to date has been to address these questions under truein vivoconditions. MicroRNAs (miRNAs) are fundamental regulatory elements of animal and plant gene expression. Although rapid progress in our understanding of miRNA biogenesis has been achieved by experimentation, computational approaches have also been influential in determining the general principles that are thought to govern miRNA target recognition and mode of action. We discuss how these principles are being progressively challenged by genetic and biochemical studies. In addition, we discuss the role of target-site-specific endonucleolytic cleavage, which is the hallmark of experimental RNA interference and a mechanism that is used by plant miRNAs and a few animal miRNAs. Generally thought to be merely a degradation mechanism, we propose that this might also be a biogenesis mechanism for biologically functional, non-coding RNA fragments.Keywords
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