In Yeast, Prions' Killer Image Doesn't Apply

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http://www.sciencemag.org/content/vol297/issue5582/news-summaries.shtml

MOLECULAR BIOLOGY:
In Yeast, Prions' Killer Image Doesn't Apply

Jennifer Couzin

Infectious proteins called prions have been fingered for causing an array of rare but horrific brain illnesses. Researchers studying these misfolded proteins have found prions in yeast and fungus; unlike those in mammals, however, they don't seem to harm the host. Now a radical new line of inquiry is casting human prions not as prototypical evildoers but more like the rare bad guys in an extended family of eccentrics.

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