期刊
BIOESSAYS
卷 36, 期 6, 页码 617-626出版社
WILEY
DOI: 10.1002/bies.201300104
关键词
3 ' UTR; CDS; miRNAs; mRNA degradation; post-transcriptional regulation; RBPs; translation
资金
- Swiss National Science Foundation [PBBSP3_146961]
- EMBO [ALTF 1160-2012]
- Swiss National Science Foundation (SNF) [PBBSP3_146961] Funding Source: Swiss National Science Foundation (SNF)
It is well established that microRNAs (miRNAs) induce mRNA degradation by binding to 3' untranslated regions (UTRs). The functionality of sites in the coding domain sequence (CDS), on the other hand, remains under discussion. Such sites have limited impact on target mRNA abundance and recent work suggests that miRNAs bind in the CDS to inhibit translation. What then could be the regulatory benefits of translation inhibition through CDS targeting compared to mRNA degradation following 3' UTR binding? We propose that these domain-dependent effects serve to diversify the functional repertoire of post-transcriptional gene expression control. Possible regulatory benefits may include tuning the time-scale and magnitude of post-transcriptional regulation, regulating protein abundance depending on or independently of the cellular state, and regulation of the protein abundance of alternative splice variants. Finally, we review emerging evidence that these ideas may generalize to RNA-binding proteins beyond miRNAs and Argonaute proteins.
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