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Trends Genet. 2007 Jun;23(6):266-9. Epub 2007 Apr 10.

Retention of protein complex membership by ancient duplicated gene products in budding yeast.

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  • 1Banting and Best Department of Medical Research, Terrence Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario, Canada.

Abstract

To investigate functional divergence of gene duplicates, we examined the protein-protein interactions and coexistence in complexes of paralogs resulting from an ancient whole-genome duplication in yeast. Strikingly, half the surveyed paralog pairs were found to be co-clustered in protein complexes, and were more conserved and highly expressed than non-co-clustered paralogs; however, their discordant expression patterns and conservation rates indicate differential regulation of subfunctionalized paralogs. These results highlight the value of protein complex membership in studying functional divergence among gene duplicates.

PMID:
17428571
[PubMed - indexed for MEDLINE]
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