Molecules and Cells

Korean Society for Molecular and Cellular Biology (한국분자세포생물학회)
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3'UTR Diversity: Expanding Repertoire of RNA Alterations in Human mRNAs

  • Dawon Hong (Laboratory of RNA Cell Biology, Department of Bioconvergence Engineering, Dankook University Graduate School) ;
  • Sunjoo Jeong (Laboratory of RNA Cell Biology, Department of Bioconvergence Engineering, Dankook University Graduate School)
  • Received : 2023.01.02
  • Accepted : 2023.01.08
  • Published : 2023.01.31
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Abstract

Genomic information stored in the DNA is transcribed to the mRNA and translated to proteins. The 3' untranslated regions (3'UTRs) of the mRNA serve pivotal roles in post-transcriptional gene expression, regulating mRNA stability, translation, and localization. Similar to DNA mutations producing aberrant proteins, RNA alterations expand the transcriptome landscape and change the cellular proteome. Recent global analyses reveal that many genes express various forms of altered RNAs, including 3'UTR length variants. Alternative polyadenylation and alternative splicing are involved in diversifying 3'UTRs, which could act as a hidden layer of eukaryotic gene expression control. In this review, we summarize the functions and regulations of 3'UTRs and elaborate on the generation and functional consequences of 3'UTR diversity. Given that dynamic 3'UTR length control contributes to phenotypic complexity, dysregulated 3'UTR diversity might be relevant to disease development, including cancers. Thus, 3'UTR diversity in cancer could open exciting new research areas and provide avenues for novel cancer theragnostics.

Keywords

Acknowledgement

This work was supported by the National Research Foundation (NRF), funded by the Ministry of Science & ICT (NRF-2020R1A2C2005358 and NRF-2022M3E5F1016546).

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