Chapter title |
Native Gel Analysis for Mammalian MicroRNPs Assembled from Pre-microRNAs.
|
---|---|
Chapter number | 4 |
Book title |
Regulatory Non-Coding RNAs
|
Published in |
Methods in molecular biology, January 2015
|
DOI | 10.1007/978-1-4939-1369-5_4 |
Pubmed ID | |
Book ISBNs |
978-1-4939-1368-8, 978-1-4939-1369-5
|
Authors |
Xuhang Liu, Zissimos Mourelatos |
Abstract |
MicroRNAs (miRNAs) are an important class of small RNAs that regulate gene expression posttranscriptionally through the microRNP (miRNP)/RNA-induced silencing complex (RISC). The core component of miRNPs is an Argonuate protein that directly binds to a miRNA. In mammals, most miRNPs are assembled through the miRNA loading complex (miRLC), which is composed of Dicer, Ago, and TRBP. miRLC processes miRNA precursors (pre-miRNAs) into miRNA duplexes and loads miRNA duplexes to Ago. Here, we describe a native gel analysis system for detecting miRNPs assembled with pre-miRNAs from mammalian lysates that ectopically express Ago2. The methods presented here provide a powerful tool for further dissecting miRNP assembly pathways in mammals. |
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