Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comment
. 2010 Jul 21;29(14):2260-1.
doi: 10.1038/emboj.2010.148.

Twins take the job

Affiliations
Comment

Twins take the job

María-Eugenia Gas et al. EMBO J. .
No abstract available

PubMed Disclaimer

Conflict of interest statement

The authors declare that they have no conflict of interest.

Figures

Figure 1
Figure 1
Schematic view of the composition and localization of human versus yeast exosomes. The nine subunit ring structure (exosome ring) is localized in the cytoplasm and nucleus in all eukaryotes. In human cells (left) the exosome ring interacts with the exoribonuclease RRP6 (hRRP6) and two different DIS3 paralogs: hDIS3 or hDIS3L1 (in a exclusive manner). Although hRRP6 is localized in the cytoplasm and nucleus, hDIS3 is mainly found in the nucleus (but excluded from nucleoli), and hDIS3L is strictly cytoplasmic. hDIS3 and hDIS3L1 are active exoribonucleases, but only the N-terminal PIN domain of hDIS3 is active (smile). In S. cerevisiae (yeast) cells (right), Dis3 protein (yDis3), which posses exoribonucleolytic and endonucleolytic activity, is present in the nucleus and cytoplasm and Rrp6 (yRrp6) is confined to the nucleus.

Comment on

References

    1. Allmang C, Petfalski E, Podtelejnikov A, Mann M, Tollervey D, Mitchell P (1999) The yeast exosome and human PM-Scl are related complexes of 3′->5′ exonucleases. Genes Dev 13: 2148–2158 - PMC - PubMed
    1. Bonneau F, Basquin J, Ebert J, Lorentzen E, Conti E (2009) The yeast exosome functions as a macromolecular cage to channel RNA substrates for degradation. Cell 139: 547–559 - PubMed
    1. Brouwer R, Allmang C, Raijmakers R, van AY, Egberts WV, Petfalski E, van Venrooij WJ, Tollervey D, Pruijn GJ (2001) Three novel components of the human exosome. J Biol Chem 276: 6177–6184 - PubMed
    1. Chen CY, Gherzi R, Ong SE, Chan EL, Raijmakers R, Pruijn GJ, Stoecklin G, Moroni C, Mann M, Karin M (2001) AU binding proteins recruit the exosome to degrade ARE-containing mRNAs. Cell 107: 451–464 - PubMed
    1. Dziembowski A, Lorentzen E, Conti E, Séraphin B (2007) A single subunit, Dis3, is essentially responsible for yeast exosome core activity. Nat Struct Mol Biol 14: 15–22 - PubMed

MeSH terms

Substances

LinkOut - more resources