نتایج جستجو برای: nonsense
تعداد نتایج: 8194 فیلتر نتایج به سال:
Several lines of evidence indicate that the processes of mRNA turnover and translation are intimately linked and that understanding this relationship is critical to elucidating the mechanism of mRNA decay. One clear example of this relationship is the observation that nonsense mutations can accelerate the decay of mRNAs in a process that we term nonsense-mediated mRNA decay. The experiments des...
Nonsense codons upstream of and including position 192 of the human gene for triosephosphate isomerase (TPI) have been found to reduce the abundance of TPI mRNA to approximately 25% of normal. The reduction is due to the decay of newly synthesized TPI mRNA that co-purifies with nuclei. TPI mRNA that co-purifies with cytoplasm is immune to nonsense-mediated decay. Until now, a nonsense codon at ...
Nonsense mutations introduce premature termination codons and underlie 11% of genetic disease cases. High concentrations of aminoglycosides can restore gene function by eliciting premature termination codon readthrough but with low efficiency. Using a high-throughput screen, we identified compounds that potentiate readthrough by aminoglycosides at multiple nonsense alleles in yeast. Chemical op...
BACKGROUND Long-QT syndrome type 2 (LQT2) is caused by mutations in the human ether-a-go-go-related gene (hERG). More than 30% of the LQT2 mutations result in premature termination codons. Degradation of premature termination codon-containing mRNA transcripts by nonsense-mediated mRNA decay is increasingly recognized as a mechanism for reducing mRNA levels in a variety of human diseases. Howeve...
BACKGROUND Nonsense mutations are at the origin of many cancers and inherited genetic diseases. The consequence of nonsense mutations is often the absence of mutant gene expression due to the activation of an mRNA surveillance mechanism called nonsense-mediated mRNA decay (NMD). Strategies to rescue the expression of nonsense-containing mRNAs have been developed such as NMD inhibition or nonsen...
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