A tale of two sequences: microRNA-target chimeric reads

Genetics Selection Evolution

Review

Amy E. Pasquinelli¹  James P. Broughton¹ 

[1] Division of Biology, University of California, San Diego, 92093-0349, La Jolla, CA, USA;

关键词: Target Site;    miRNA Target;    Argonaute Protein;    miRNA Target Site;    Mature miRNA Sequence;   

DOI  :  10.1186/s12711-016-0209-x

 received in 2015-10-22, accepted in 2016-03-22,  发布年份 2016

来源: Springer

【 摘 要 】

In animals, a functional interaction between a microRNA (miRNA) and its target RNA requires only partial base pairing. The limited number of base pair interactions required for miRNA targeting provides miRNAs with broad regulatory potential and also makes target prediction challenging. Computational approaches to target prediction have focused on identifying miRNA target sites based on known sequence features that are important for canonical targeting and may miss non-canonical targets. Current state-of-the-art experimental approaches, such as CLIP-seq (cross-linking immunoprecipitation with sequencing), PAR-CLIP (photoactivatable-ribonucleoside-enhanced CLIP), and iCLIP (individual-nucleotide resolution CLIP), require inference of which miRNA is bound at each site. Recently, the development of methods to ligate miRNAs to their target RNAs during the preparation of sequencing libraries has provided a new tool for the identification of miRNA target sites. The chimeric, or hybrid, miRNA-target reads that are produced by these methods unambiguously identify the miRNA bound at a specific target site. The information provided by these chimeric reads has revealed extensive non-canonical interactions between miRNAs and their target mRNAs, and identified many novel interactions between miRNAs and noncoding RNAs.

【 授权许可】

CC BY   
© Broughton and Pasquinelli. 2016