AU-rich element-mediated mRNA decay via the butyrate response factor 1 controls cellular levels of polyadenylated replication-dependent histone mRNAs

Incheol Ryu, Yoon Ki Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Replication-dependent histone (RDH) mRNAs have a nonpolyadenylated 3'-UTR that ends in a highly conserved stemloop structure. Nonetheless, a subset of RDH mRNAs has a poly(A) tail under physiological conditions. The biological meaning of poly(A)-containing (+) RDH mRNAs and details of their biosynthesis remain elusive. Here, using HeLa cells and Western blotting, qRT-PCR, and biotinylated RNA pulldown assays, we show that poly(A) + RDH mRNAs are post-transcriptionally regulated via adenylate- and uridylate-rich element-mediatedmRNAdecay (AMD).Weobserved that the rapid degradation of poly(A) + RDHmRNAis driven by butyrate response factor 1 (BRF1; also known as ZFP36 ring finger protein-like 1) under normal conditions. Conversely, cellular stresses such as UV C irradiation promoted BRF1 degradation, increased the association of Hu antigen R (HuR; also known as ELAV-like RNA-binding protein 1) with the 3'-UTR of poly(A)+ RDH mRNAs, and eventually stabilized the poly(A)+ RDH mRNAs. Collectively, our results provide evidence that AMD surveils poly(A)+ RDH mRNAs via BRF1-mediated degradation under physiological conditions.

Original languageEnglish
Pages (from-to)7558-7565
Number of pages8
JournalJournal of Biological Chemistry
Volume294
Issue number19
DOIs
Publication statusPublished - 2019 May 10

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Cell Biology

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