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Open AccessJournal ArticleDOI

Nonsense-mediated mRNA decay in mammals.

Lynne E. Maquat
- 01 May 2005 - 
- Vol. 118, Iss: 9, pp 1773-1776
TLDR
Nonsense-mediated mRNA decay in mammalian cells generally degrades mRNAs that terminate translation more than 50-55 nucleotides upstream of a splicing-generated exon-exon junction.
Abstract
Nonsense-mediated mRNA decay (NMD) in mammalian cells generally degrades mRNAs that terminate translation more than 50-55 nucleotides upstream of a splicing-generated exon-exon junction (reviewed in [Maquat, 2004a][1]; [Nagy and Maquat, 1998][2]). Notably, dependence on exon-exon junctions

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Citations
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Journal ArticleDOI

AceView: a comprehensive cDNA-supported gene and transcripts annotation

TL;DR: The driving principles of AceView are described, and how, by performing hand-supervised automatic annotation, it solves the combinatorial splicing problem and summarize all of GenBank, dbEST and RefSeq into a genome-wide non-redundant but comprehensive cDNA-supported transcriptome.
Journal ArticleDOI

Quality control of eukaryotic mRNA: safeguarding cells from abnormal mRNA function

TL;DR: An overview of three quality control mechanisms--nonsense-mediated RNA decay, nonstop mRNA decay, and no-go mRNA decay--is provided, which surveys mRNAs during translation and degrades those m RNAs that direct aberrant protein synthesis.
Journal ArticleDOI

A post-transcriptional regulatory switch in polypyrimidine tract-binding proteins reprograms alternative splicing in developing neurons

TL;DR: It is shown that the splicing of a large group of exons is reprogrammed during neuronal development by a switch in expression between two highly similar polypyrimidine tract-binding proteins, PTB and nPTB (neural PTB).
Journal ArticleDOI

Ultraconserved elements are associated with homeostatic control of splicing regulators by alternative splicing and nonsense-mediated decay

TL;DR: It is suggested that the extreme genomic conservation surrounding these regulatory splicing events within splicing factor genes demonstrates the evolutionary importance of maintaining tightly tuned homeostasis of RNA-binding protein levels in the vertebrate cell.
Journal ArticleDOI

Post-transcriptional regulation of gene expression in trypanosomes and leishmanias.

TL;DR: Recent results concerning the enzymes required for mRNA degradation, and components of the translation initiation machinery, and how both are regulated are discussed.
References
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Journal ArticleDOI

Nonsense-mediated mRNA decay: splicing, translation and mRNP dynamics

TL;DR: The acquisition and loss of mRNA-associated proteins accompanies the transition from the pioneer round to subsequent rounds of translation, and from translational competence to substrate for nonsense-mediated mRNA decay.
Journal ArticleDOI

A rule for termination-codon position within intron-containing genes: when nonsense affects RNA abundance

TL;DR: This paper aims to explore the role of language and time in the development of romantic attachment and its role in the story of Henry IV.
Journal ArticleDOI

The spliceosome deposits multiple proteins 20–24 nucleotides upstream of mRNA exon–exon junctions

TL;DR: It is reported that the spliceosome stably deposits several proteins on mRNAs, probably as a single complex of ∼335 kDa, which protects 8 nucleotides of mRNA from complete RNase digestion at a conserved position 20–24 nucleotide upstream of exon–exon junctions.
Journal ArticleDOI

Nonsense surveillance regulates expression of diverse classes of mammalian transcripts and mutes genomic noise.

TL;DR: Novel results document that nonsense surveillance is a crucial post-transcriptional regulatory event that influences the expression of broad classes of physiologic transcripts, has been functionally incorporated into essential homeostatic mechanisms and suppresses expression of evolutionary remnants.
Journal ArticleDOI

The exon–exon junction complex provides a binding platform for factors involved in mRNA export and nonsense-mediated mRNA decay

TL;DR: The composition of the exon–exon junction complex is dynamic in vivo and is subject to significant evolution upon mRNA export to the cytoplasm.
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