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Distinct proteinase K-resistant prion protein fragment in goats with no signs of disease in a classical scrapie outbreak.


ABSTRACT: Considerable efforts have been directed toward the identification of small-ruminant prion diseases, i.e., classical and atypical scrapie as well as bovine spongiform encephalopathy (BSE). Here we report the in-depth molecular analysis of the proteinase K-resistant prion protein core fragment (PrP(res)) in a highly scrapie-affected goat flock in Greece. The PrP(res) profile by Western immunoblotting in most animals was that of classical scrapie in sheep. However, in a series of clinically healthy goats we identified a unique C- and N-terminally truncated PrP(res) fragment, which is akin but not identical to that observed for atypical scrapie. These findings reveal novel aspects of the nature and diversity of the molecular PrP(res) phenotypes in goats and suggest that these animals display a previously unrecognized prion protein disorder.

SUBMITTER: Bouzalas IG 

PROVIDER: S-EPMC3122744 | biostudies-literature | 2011 Jun

REPOSITORIES: biostudies-literature

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Distinct proteinase K-resistant prion protein fragment in goats with no signs of disease in a classical scrapie outbreak.

Bouzalas Ilias G IG   Lörtscher Florian F   Dovas Chrysostomos I CI   Oevermann Anna A   Langeveld Jan P M JP   Papanastassopoulou Maria M   Papadopoulos Orestis O   Zurbriggen Andreas A   Seuberlich Torsten T  

Journal of clinical microbiology 20110330 6


Considerable efforts have been directed toward the identification of small-ruminant prion diseases, i.e., classical and atypical scrapie as well as bovine spongiform encephalopathy (BSE). Here we report the in-depth molecular analysis of the proteinase K-resistant prion protein core fragment (PrP(res)) in a highly scrapie-affected goat flock in Greece. The PrP(res) profile by Western immunoblotting in most animals was that of classical scrapie in sheep. However, in a series of clinically healthy  ...[more]

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