SGD Paper 
Chen CY, et al. (2001) AU binding proteins recruit the exosome to degrade ARE-containing mRNAs. Cell 107(4):451-64
Abstract: Inherently unstable mammalian mRNAs contain AU-rich elements (AREs) within their 3' untranslated regions. Although found 15 years ago, the mechanism by which AREs dictate rapid mRNA decay is not clear. In yeast, 3'-to-5' mRNA degradation is mediated by the exosome, a multisubunit particle. We have purified and characterized the human exosome by mass spectrometry and found its composition to be similar to its yeast counterpart. Using a cell-free RNA decay system, we demonstrate that the mammalian exosome is required for rapid degradation of ARE-containing RNAs but not for poly(A) shortening. The mammalian exosome does not recognize ARE-containing RNAs on its own. ARE recognition requires certain ARE binding proteins that can interact with the exosome and recruit it to unstable RNAs, thereby promoting their rapid degradation.
| Status: Published | Type: Comparative Study | Journal Article | Research Support, Non-U.S. Gov't | PubMed ID: 11719186 |
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| MTR4 | |
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| Non-Fungal Related Genes/Proteins | |
