MicroRNA-mediated repression of nonsense mRNAs
Numerous studies have established important roles for microRNAs (miRNAs) in regulating gene expression. Here, we report that miRNAs also serve as a surveillance system to repress the expression of nonsense mRNAs that may produce harmful truncated ...
Ya Zhao +5 more
doaj +1 more source
The RNA helicase DHX34 functions as a scaffold for SMG1-mediated UPF1 phosphorylation
UPF1 is a central Nonsense-mediated mRNA decay—(NMD), a mechanism to degrade mRNAs containing premature translation termination codons-factor—whose phosphorylation is key to triggering NMD. Here the authors show that the DHX34 helicase acts as a scaffold
Roberto Melero +5 more
doaj +1 more source
Nonsense-Mediated mRNA Decay, a Finely Regulated Mechanism
Nonsense-mediated mRNA decay (NMD) is both a mechanism for rapidly eliminating mRNAs carrying a premature termination codon and a pathway that regulates many genes.
Fabrice Lejeune
doaj +1 more source
Direct RNA sequencing dataset of SMG1 KO mutant Physcomitrella (Physcomitrium patens)
Nonsense-mediated mRNA decay (NMD) is a system that controls the quality of mRNA transcripts in eukaryotes by degradation of aberrant transcripts in a pioneer round of translation.
Andrey Knyazev +2 more
doaj +1 more source
The mRNA encoding the yeast ARE-binding protein Cth2 is generated by a novel 3 ' processing pathway [PDF]
Microarray analyses of mRNAs over-expressed in strains lacking the nuclear exosome component Rrp6 identified the transcript encoding the ARE-binding protein Cth2, which functions in cytoplasmic mRNA stability.
Bohnsack, Markus T. +2 more
core +1 more source
Optimized approach for the identification of highly efficient correctors of nonsense mutations in human diseases. [PDF]
About 10% of patients with a genetic disease carry a nonsense mutation causing their pathology. A strategy for correcting nonsense mutations is premature termination codon (PTC) readthrough, i.e.
Hana Benhabiles +10 more
doaj +1 more source
Degradation of YRA1 Pre-mRNA in the cytoplasm requires translational repression, multiple modular intronic elements, Edc3p, and Mex67p. [PDF]
Intron-containing pre-mRNAs are normally retained and processed in the nucleus but are sometimes exported to the cytoplasm and degraded by the nonsense-mediated mRNA decay (NMD) pathway as a consequence of their inclusion of intronic in-frame termination
Shuyun Dong, Allan Jacobson, Feng He
doaj +1 more source
Nonsense-mediated mRNA decay: novel mechanistic insights and biological impact [PDF]
Nonsense-mediated mRNA decay (NMD) was originally coined to define a quality control mechanism that targets mRNAs with truncated open reading frames due to the presence of a premature termination codon.
Nasif, Sofia +2 more
core +2 more sources
Degradation of Gadd45 mRNA by nonsense-mediated decay is essential for viability
The nonsense-mediated mRNA decay (NMD) pathway functions to degrade both abnormal and wild-type mRNAs. NMD is essential for viability in most organisms, but the molecular basis for this requirement is unknown.
Jonathan O Nelson +4 more
doaj +1 more source
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source

