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Updated: May 26, 2026

Detection of Abnormal Prion Protein by Immunohistochemistry
Published on: May 5, 2023
Polymorphism of the prion protein gene (PRNP) in Polish cattle affected by classical bovine spongiform encephalopathy
Artur Gurgul1, Urszula Czarnik, Czarnik Urszula
1Laboratory of Genomics, National Research Institute of Animal Production, Krakowska 1, 32-083, Balice n. Krakow, Poland. agurgul@izoo.krakow.pl
Abstract:
Recent attempts to discover genetic factors affecting cattle resistance/susceptibility to bovine spongiform encephalopathy (BSE) have led to the identification of two insertion/deletion (indel) polymorphisms, located within the promoter and intron 1 of the prion protein gene PRNP, showing a significant association with the occurrence of classical form of the disease. Because the effect of the polymorphisms was studied only in few populations, in this study we investigated whether previously described association of PRNP indel polymorphisms with BSE susceptibility in cattle is also present in Polish cattle population. We found a significant relation between the investigated PRNP indel polymorphisms (23 and 12 bp indels), and susceptibility of Polish Holstein-Friesian cattle to classical BSE (P < 0.05). The deletion variants of both polymorphisms were related to increased susceptibility, whereas insertion variants were protective against BSE.
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