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Complexity Digest 2007.32 - 13.02
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23-Aug-2007

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Molecular Evolution: Resurrected Proteins Reveal Their Surprising History,
Science
 









Excerpts: (...)  researchers report that they resurrected a protein from ancient
fish that swam the oceans some 450 million years ago and then worked out the
protein's atomic structure. By comparing the protein to more modern versions and
doing some deft detective work, they crafted something like a movie of the
sequence of key mutations that enabled the ancestral protein to take on new
modern functions.(...)  Haussler says the work underscores how chance mutations
that seemingly add little value initially can help set the stage for major
evolutionary leaps. "For me, what is so exciting is seeing the dynamics of
evolution play out on the molecular level," Haussler says.
Source: Molecular Evolution: Resurrected Proteins Reveal Their Surprising
History[ http://www.sciencemag.org/cgi/content/full/317/5840/884b ], Robert F.
Service, Science : 884-885., 07/08/17

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