1887

Abstract

The diversity and possible contribution of non-coding regions of the prion protein (PrP) gene () to transmissible spongiform encephalopathy susceptibility and PrP regulation are not fully known. This study defined ten ovine promoters and five untranslated region (UTR) haplotypes found in atypical and classical scrapie cases and healthy control sheep. A greater diversity of promoter and UTR haplotypes was observed in conjunction with the ARQ PrP allele (seven promoter and four UTR haplotypes), while it was observed that the other alleles were linked with a limited number of haplotypes, such as ARR, found to be linked to only two promoter and one UTR haplotypes. analysis identified potential transcription factor binding sites that differed in the promoter haplotype variants. Furthermore, a 5′ UTR internal ribosome entry site motif was identified in exon 2 and highlights a possible role for this exon in regulating PrP expression at the translational level.

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2009-05-01
2019-11-12
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