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Biotin-based Pulldown Assay to Validate mRNA Targets of Cellular miRNAs
Published on: June 12, 2018
MicroRNAs and messenger RNA turnover.
Julia A Chekanova1, Dmitry A Belostotsky
1Department of Biological Sciences, State University of New York, Albany, NY, USA.
Methods in Molecular Biology (Clifton, N.J.)
|September 8, 2006
Summary
MicroRNAs (miRNAs) target messenger RNAs (mRNAs) for cleavage or repression via the RNA-induced silencing complex (RISC). This study characterizes the products of miRNA-directed mRNA cleavage by RISC.
Area of Science:
- Molecular Biology
- Genetics
- RNA Biology
Background:
- MicroRNAs (miRNAs) regulate gene expression by targeting messenger RNAs (mRNAs).
- Initially thought to only repress translation, miRNAs are now known to also induce mRNA cleavage.
- The mechanisms of miRNA-mediated translational repression and mRNA cleavage differ and are context-dependent.
Purpose of the Study:
- To focus on the mechanism of miRNA-directed mRNA cleavage by the RNA-induced silencing complex (RISC).
- To characterize the specific products generated from miRNA-mediated mRNA cleavage.
Main Methods:
- The study involves analyzing the products of mRNA cleavage mediated by miRNA-programmed RISC.
- Detailed characterization of cleavage products is performed.
Main Results:
- miRNA-directed mRNA cleavage by RISC generates specific products.
- The characteristics of these cleavage products are elucidated.
Conclusions:
- miRNA-mediated mRNA cleavage is a significant mode of gene regulation in both plants and animals.
- Understanding the products of cleavage provides insights into the precise mechanisms of miRNA function.
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