Swaledale sheep affected by natural scrapie differ significantly in PrP genotype frequencies from healthy sheep and those selected for reduced incidence of scrapie.

Abstract excerpt

PrP glycoprotein gene polymorphisms were examined in Swaledale sheep affected by natural scrapie, in healthy sheep and in Swaledales selected for low susceptibility to scrapie. The three groups differed significantly in frequencies of PrP genotypes detected by the restriction enzymes EcoRI, HindIII and BspHI, the latter being indicative of a PrP protein amino acid difference at codon 136. These frequency...

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