A protein variant can provide protection from deadly brain-wasting

Evolution found cure for prion disease spread by cannibalism

prions and disease

BRAIN DRAIN  Prion diseases, such as kuru and mad cow disease, result when a normal brain protein (lower left) morphs into a disease-causing form and converts its normal counterparts. The twisted proteins form clumps (upper center) or strands that cluster in large plaques (lower right) that kill brain cells. 

Nicolle Rager Fuller

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