Computer artwork of part of a prion protein

Computer artwork of part of a prion protein

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This image is part of the feature B B C

Credit: ALFRED PASIEKA/SCIENCE PHOTO LIBRARY

Caption: Prion protein. Computer artwork of part of a prion protein. Prions cause diseases such as BSE (bovine spongiform encephalopathy) in cows and CJD (Creutzfeldt-Jakob disease) in humans. They are a mutated form of a normal cell protein (PrP). The atoms are colour-coded: hydrogen (light blue), oxygen (red), nitrogen (dark blue) and carbon (orange). Prions consist of amino acids formed into spiralling alpha-helices (purple and orange) and straight beta-sheets (such as the two mauve areas on the strands at upper centre). This is the rigid and stable half of the protein. The other half (not shown) is variable in shape. One shape is believed to be responsible for CJD and BSE.

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Keywords: ar, artwork, biology, bse, cjd, creutzfeldt-jakob dis., images, magnified image, microbiology, microscopic photos, molecular graphic, molecular model, prion, prions, protein, subjects, virology, virus-like, virus-like organism

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