Journal
NATURE REVIEWS MOLECULAR CELL BIOLOGY
Volume 20, Issue 7, Pages 406-420Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41580-019-0126-2
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- National Institutes of Health [GM059614]
- Schmitt Program in Integrative Neuroscience from the University of Rochester Medical Center
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Nonsense-mediated mRNA decay (N MD) is one of the best characterized and most evolutionarily conserved cellular quality control mechanisms. Although NMD was first found to target one-third of mutated, disease-causing mRNAs, it is now known to also target similar to 10% of unmutated mammalian mRNAs to facilitate appropriate cellular responses - adaptation, differentiation or death - to environmental changes. Mutations in NMD genes in humans are associated with intellectual disability and cancer. In this Review, we discuss how NMD serves multiple purposes in human cells by degrading both mutated mRNAs to protect the integrity of the transcriptome and normal mRNAs to control the quantities of unmutated transcripts.
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