Allelic variants of PRNP in 16 Chinese local sheep breeds

Arch Virol. 2014 Aug;159(8):2141-4. doi: 10.1007/s00705-014-2048-9. Epub 2014 Mar 19.

Abstract

Here, polymorphisms of the ovine prion protein gene were analyzed in 486 Chinese sheep from 16 main local breeds. Polymorphisms R or H at codons 154 and four polymorphisms at codon 171 encoding Q, R, H, or K were identified. The A/V polymorphism at codon 136 was not observed, and all sheep were homozygous for A at this position. In addition, ten polymorphisms at codons 21, 101, 112, 127, 138, 141, 143, 146, 153 and 189 were detected. The predominant Q allele occurred at codon 171, with a high frequency of 88.68 %, implying a risk of scrapie in China.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alleles
  • Animals
  • China
  • Gene Frequency
  • Genetic Predisposition to Disease
  • Polymorphism, Genetic*
  • Prions / genetics*
  • Prions / metabolism
  • Scrapie / genetics*
  • Scrapie / metabolism
  • Sheep
  • Sheep Diseases / genetics*
  • Sheep Diseases / metabolism

Substances

  • Prions