ApocaDocs: 'Lifeless' Prions Capable of Evolutionary Change and Adaptation

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	'Lifeless' Prions Capable of Evolutionary Change and Adaptation http://apocadocs.com/s.pl?1262563879 Scientists from The Scripps Research Institute have determined for the first time that prions, bits of infectious protein devoid of DNA or RNA that can cause fatal neurodegenerative disease, are capable of Darwinian evolution. The study from Scripps Florida in Jupiter shows that prions can develop large numbers of mutations at the protein level and, through natural selection, these mutations can eventually bring about such evolutionary adaptations as drug resistance, a phenomenon previously known to occur only in bacteria and viruses. These breakthrough findings also suggest that the normal prion protein -- which occurs naturally in human cells -- may prove to be a more effective therapeutic target than its abnormal toxic relation.

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