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Functional divergence in protein (family) sequence evolution

Part of the Contemporary Issues in Genetics and Evolution book series (CIGE, volume 10)

Abstract

As widely used today to infer ‘:function’, the homology search is based on the neutral theory that sites of greatest functional significance are under the strongest selective constraints as well as lowest evolutionary rates, and vice versa. Therefore, site-specific rate changes (or altered selective constraints) are related to functional divergence during protein (family) evolution. In this paper, we review our recent work about this issue. We show a great deal of functional information can be obtained from the evolutionary perspective, which can in turn be used to facilitate high throughput functional assays. The emergence of evolutionary functional genomics is also indicated. The related software DIVERGE can be obtained form http://xgul.zool.iastate.edu.

Key words

functional divergence gene duplication sequence evolution 

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Copyright information

© Springer Science+Business Media Dordrecht 2003

Authors and Affiliations

  • Xun Gu
    • 1
  1. 1.Department of Zoology and Genetics, LHB Center for Bioinformatics and Biological StatisticsIowa State UniversityAmesUSA

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