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15-million-year-old mollusk protein found

A team of US scientists have found "beautifully preserved" 15 million-year-old thin protein sheets in fossil shells from southern Maryland. Their findings are published in the inaugural issue of Geochemical Pe ...

dateFeb 05, 2015 in Earth Sciences
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No knots in known RNA structures

It had never been verified before: unlike other biopolymers, RNA, the long strand that is 'cousin' to DNA, tends not to form knots. The observation has been published in the journal PNAS by a research team o ...

dateFeb 02, 2015 in Cell & Microbiology
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