mRNAs containing NMD-competent premature termination codons are stabilized and translated under UPF1 depletion

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ATP hydrolysis by UPF1 is required for efficient translation termination at premature stop codons

Nonsense-mediated mRNA decay (NMD) represents a eukaryotic quality control pathway that recognizes and rapidly degrades transcripts harbouring nonsense mutations to limit accumulation of non-functional and potentially toxic truncated polypeptides. A critical component of the NMD machinery is UPF1, an RNA helicase whose ATPase activity is essential for NMD, but for which the precise function and...

متن کامل

Premature termination codons in modern human genomes

The considerable range of genetic variation in human populations may partly reflect distinctive processes of adaptation to variable environmental conditions. However, the adaptive genomic signatures remain to be completely elucidated. This research explores candidate loci under selection at the population level by characterizing recently arisen premature termination codons (PTCs), some of which...

متن کامل

Context analysis of termination codons in mRNA that are recognized by plant NMD.

The nonsense-mediated mRNA decay (NMD) system is an RNA surveillance system that degrades mRNAs possessing premature translation termination codons (PTCs). Although NMD factors are well conserved in eukaryotes, it is speculated that the contexts of those termination codons that are subject to NMD are different depending on the organism. Context analysis of termination codons that are recognized...

متن کامل

The nonsense-mediated mRNA decay pathway triggers degradation of most BRCA1 mRNAs bearing premature termination codons.

Germline mutations in the BRCA1 gene are scattered over the 22 coding exons and most of them generate premature termination codons (PTCs). A mechanism called nonsense-mediated mRNA decay (NMD) is known to specifically degrade transcripts with PTCs; however, steady-state amounts of mutant BRCA1 mRNAs have very rarely been measured. Although growing evidence implicates downstream exon-exon juncti...

متن کامل

Cotranscriptional effect of a premature termination codon revealed by live-cell imaging.

Aberrant mRNAs with premature translation termination codons (PTCs) are recognized and eliminated by the nonsense-mediated mRNA decay (NMD) pathway in eukaryotes. We employed a novel live-cell imaging approach to investigate the kinetics of mRNA synthesis and release at the transcription site of PTC-containing (PTC+) and PTC-free (PTC-) immunoglobulin-μ reporter genes. Fluorescence recovery aft...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Scientific Reports

سال: 2017

ISSN: 2045-2322

DOI: 10.1038/s41598-017-16177-9