It is advantageous for an organism to be able to remove aberrant mRNAs that have either been incorrectly transcribed or processed in order to prevent the accumulation of potentially harmful proteins. The selective degradation of nonsense containing transcripts has been described in yeast, Caenorhabiditis elegans and plants. The ease of identification of new mutant alleles in the AUX1 gene of Arabidopsis thaliana has provided a useful system to study novel mutations affecting mRNA stability and pre-mRNA splicing. To date 50 alleles of AUX1 have been identified of which 14 have been characterised at the sequence level. Eight of the characterised alleles encode missense mutations while the others cause nonsense mutations or splicing defects. The 2 splicing mutants identified affect the 5′ or 3′ splice sites and lead to cryptic splicing events resulting in premature stop codons. The AUX1 mRNA levels of the nonsense containing mutants are reduced compared to the wild-type or missense mutants whereas those of a control transcript (SecY) are unaltered. This provides further evidence for a nonsense-mediated mRNA degradation mechanism in plants and provides a system to study the phenomenon further in Arabidopsis.
Plant Molecular Biology – Springer Journals
Published: Oct 6, 2004
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera