Noncoding RNA NORAD Regulates Genomic Stability by Sequestering PUMILIO Proteins

Sungyul Lee, Florian Kopp, Tsung Cheng Chang, Anupama Sataluri, Beibei Chen, Sushama Sivakumar, Hongtao Yu, Yang Xie, Joshua T. Mendell

Research output: Contribution to journalArticle

216 Citations (Scopus)

Abstract

Long noncoding RNAs (lncRNAs) have emerged as regulators of diverse biological processes. Here, we describe the initial functional analysis of a poorly characterized human lncRNA (LINC00657) that is induced after DNA damage, which we termed "noncoding RNA activated by DNA damage", or NORAD. NORAD is highly conserved and abundant, with expression levels of approximately 500-1,000 copies per cell. Remarkably, inactivation of NORAD triggers dramatic aneuploidy in previously karyotypically stable cell lines. NORAD maintains genomic stability by sequestering PUMILIO proteins, which repress the stability and translation of mRNAs to which they bind. In the absence of NORAD, PUMILIO proteins drive chromosomal instability by hyperactively repressing mitotic, DNA repair, and DNA replication factors. These findings introduce a mechanism that regulates the activity of a deeply conserved and highly dosage-sensitive family of RNA binding proteins and reveal unanticipated roles for a lncRNA and PUMILIO proteins in the maintenance of genomic stability.

Original languageEnglish (US)
Pages (from-to)69-80
Number of pages12
JournalCell
Volume164
Issue number1-2
DOIs
StatePublished - Jan 14 2016

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Long Noncoding RNA
Untranslated RNA
Genomic Instability
DNA Damage
DNA
Biological Phenomena
Chromosomal Instability
Proteins
RNA-Binding Proteins
RNA Stability
Protein Biosynthesis
Aneuploidy
DNA Replication
DNA Repair
Functional analysis
Maintenance
Cell Line
Repair
Cells
Messenger RNA

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Noncoding RNA NORAD Regulates Genomic Stability by Sequestering PUMILIO Proteins. / Lee, Sungyul; Kopp, Florian; Chang, Tsung Cheng; Sataluri, Anupama; Chen, Beibei; Sivakumar, Sushama; Yu, Hongtao; Xie, Yang; Mendell, Joshua T.

In: Cell, Vol. 164, No. 1-2, 14.01.2016, p. 69-80.

Research output: Contribution to journalArticle

Lee, Sungyul ; Kopp, Florian ; Chang, Tsung Cheng ; Sataluri, Anupama ; Chen, Beibei ; Sivakumar, Sushama ; Yu, Hongtao ; Xie, Yang ; Mendell, Joshua T. / Noncoding RNA NORAD Regulates Genomic Stability by Sequestering PUMILIO Proteins. In: Cell. 2016 ; Vol. 164, No. 1-2. pp. 69-80.
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