Bovine prion protein fragment, illustration

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Illustration of the C-terminal fragment of the bovine (cow) prion protein. Prions are abnormal proteins that cause a group of fatal neurodegenerative diseases including bovine spongiform encephalopathy (BSE) in cows and Creutzfeldt-Jakob disease (CJD) in humans. Unlike other infectious agents prions do not have a nucleic acid genome for replication. Instead, the abnormal infectious prions change normal prions, found in cell membranes, to the abnormal form. This leads to a build up of protein plaques and neurodegeneration.

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Size: 4621px × 4752px
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Photo credit: © FRANCISCO J. ENGUITA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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