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Genetics & Genomics

First prion-free cows reported in Nature Biotechnology

Published in Medical Letter on the CDC and FDA, February 4th, 2007

Hematech, Inc (a subsidiary of the Kirin Brewery Company, Ltd) and Kirin Brewery Company, Ltd, announced recently in a report published in Nature Biotechnology, the production of healthy prion protein-knockout cows.

Prion protein is a natural cellular protein that can become misfolded into infectious particles and cause bovine spongiform encephalopathy (BSE, or mad cow disease) and a lethal variant of Creutzfeldt-Jakob disease (vCJD) in humans. Healthy prion protein-free calves should be useful in investigating the function of normal cellular prion protein and the nature of prion diseases. Additionally, the cows should be useful as a source of prion protein-free...

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