Identification of Aneuploidy-Tolerating Mutations
Name
Amon_Identification of aneuploidy.pdf
Size
1.33 MB
Format
Adobe PDF
Checksum (MD5)
dadc427b165434b3691b0a8d543ff9ac
Author(s)
Torres, Eduardo Martin
Dephoure, Noah
Panneerselvam, Amudha
Tucker, Cheryl M.
Whittaker, Charles A.
Gygi, Steven P.
Dunham, Maitreya J.
Amon, Angelika B
Date Issued
October 2010
Journal
Cell
Publisher
Elsevier B.V.
Citation
Torres, Eduardo M., Noah Dephoure, Amudha Panneerselvam, Cheryl M. Tucker, Charles A. Whittaker, Steven P. Gygi, Maitreya J. Dunham, and Angelika Amon. “Identification of Aneuploidy-Tolerating Mutations.” Cell 143, no. 1 (October 2010): 71-83. © 2010 Elsevier Inc.
Version
Final published version
Abstract
Aneuploidy causes a proliferative disadvantage in all normal cells analyzed to date, yet this condition is associated with a disease characterized by unabated proliferative potential, cancer. The mechanisms that allow cancer cells to tolerate the adverse effects of aneuploidy are not known. To probe this question, we identified aneuploid yeast strains with improved proliferative abilities. Their molecular characterization revealed strain-specific genetic alterations as well as mutations shared between different aneuploid strains. Among the latter, a loss-of-function mutation in the gene encoding the deubiquitinating enzyme Ubp6 improves growth rates in four different aneuploid yeast strains by attenuating the changes in intracellular protein composition caused by aneuploidy. Our results demonstrate the existence of aneuploidy-tolerating mutations that improve the fitness of multiple different aneuploidies and highlight the importance of ubiquitin-proteasomal degradation in suppressing the adverse effects of aneuploidy.
MIT Department
Massachusetts Institute of Technology. Department of Biology
Koch Institute for Integrative Cancer Research at MIT
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/j.cell.2010.08.038
