UPFront and center in RNA decay: UPF1 in nonsense-mediated mRNA decay and beyond

Yoon Ki Kim, Lynne E. Maquat

Research output: Contribution to journalReview article

8 Citations (Scopus)

Abstract

Nonsense-mediated mRNA decay (NMD), which is arguably the best-characterized translation-dependent regulatory pathway in mammals, selectively degrades mRNAs as a means of post-transcriptional gene control. Control can be for the purpose of ensuring the quality of gene expression. Alternatively, control can facilitate the adaptation of cells to changes in their environment. The key to NMD, no matter what its purpose, is the ATP-dependent RNA helicase upstream frameshift 1 (UPF1), without which NMD fails to occur. However, UPF1 does much more than regulate NMD. As examples, UPF1 is engaged in functionally diverse mRNA decay pathways mediated by a variety of RNA-binding proteins that include staufen, stem–loop-binding protein, glucocorticoid receptor, and regnase 1. Moreover, UPF1 promotes tudor-staphylococcal/ micrococcal-like nuclease-mediated microRNA decay. In this review, we first focus on how the NMD machinery recognizes an NMD target and triggers mRNA degradation. Next, we compare and contrast the mechanisms by which UPF1 functions in the decay of other mRNAs and also in microRNA decay. UPF1, as a protein polymath, engenders cells with the ability to shape their transcriptome in response to diverse biological and physiological needs.

Original languageEnglish
Pages (from-to)407-422
Number of pages16
JournalRNA
Volume25
Issue number4
DOIs
Publication statusPublished - 2019 Apr 1

Fingerprint

Nonsense Mediated mRNA Decay
RNA Stability
MicroRNAs
RNA Helicases
Micrococcal Nuclease
RNA-Binding Proteins
Glucocorticoid Receptors
Transcriptome
Mammals
Carrier Proteins
Adenosine Triphosphate
Gene Expression
Messenger RNA
Genes

Keywords

  • Nonsense-mediated mRNA decay
  • Staufen-mediated mRNA decay
  • UPF1

ASJC Scopus subject areas

  • Molecular Biology

Cite this

UPFront and center in RNA decay : UPF1 in nonsense-mediated mRNA decay and beyond. / Kim, Yoon Ki; Maquat, Lynne E.

In: RNA, Vol. 25, No. 4, 01.04.2019, p. 407-422.

Research output: Contribution to journalReview article

Kim, Yoon Ki ; Maquat, Lynne E. / UPFront and center in RNA decay : UPF1 in nonsense-mediated mRNA decay and beyond. In: RNA. 2019 ; Vol. 25, No. 4. pp. 407-422.
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