@article {10.1371/journal.pgen.1002433, title = {{Genome-Wide Assessment of AU-Rich Elements by the AREScore Algorithm}}, journal = {PLoS Genet}, volume = {8}, number = {1}, year = {2012}, month = {01}, pages = {e1002433}, abstract = {Author Summary

Many genes are regulated at the posttranscriptional level by factors that influence the stability of the messenger RNA. In mammals, AU-rich elements are known to cause rapid degradation of messenger RNAs and thereby suppress gene expression. In order to identify such elements on a genome-wide scale, we developed a bioinformatic tool with which we can score messenger RNAs for the presence of AU-rich elements. Using the AREScore algorithm, we observe that AU-rich elements correlate with reduced messenger RNA stability and expression levels. We then used the AREScore to compare the transcriptomes of 14 metazoan species and found that messenger RNAs with high AREScores are enriched in several vertebrates and the fruit fly Drosophila melanogaster. We identified messenger RNAs whose levels are regulated by the Drosophila Tis11 protein, which binds to AU-rich elements. Our study introduces the AREScore as a means to globally assess AU-rich elements and predict short-lived messenger RNAs. Furthermore, it demonstrates the regulatory role of AU-rich elements in suppressing gene expression by accelerating messenger RNA degradation in D. melanogaster cells.

}, doi = {10.1371/journal.pgen.1002433}, author = {Milan Spasic and Caroline C. Friedel and Johanna Schott and Jochen Kreth and Kathrin Leppek and Sarah Hofmann and Sevim Ozgur and Georg Stoecklin} }