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Identification of Single Nucleotide Polymorphisms in PRNP Gene of Korean Native Goats

  • Hoque, Md. Rashedul (Department of Animal Science and Biotechnology, College of Agriculture and Life Sciences, Chungnam National University) ;
  • Yu, Seong-Lan (Department of Animal Science and Biotechnology, College of Agriculture and Life Sciences, Chungnam National University) ;
  • Yeon, Seong-Heum (National Institute of Animal Science, R.D.A.) ;
  • Lee, Jun-Heon (Department of Animal Science and Biotechnology, College of Agriculture and Life Sciences, Chungnam National University)
  • Received : 2009.09.16
  • Accepted : 2009.12.10
  • Published : 2009.12.01

Abstract

Prion protein (PRNP) is known to be a causative protein for transmissible spongiform encephalopathy (TSE), a disease occurring in human and animals. Previous results indicate that the genetic variability can affect the resistance and susceptibility of goat scrapie and can give the guideline for reducing the risk of this disease. Until now, 35 single nucleotide polymorphisms (SNPs) were identified in goat PRNP gene from many countries such as Great Britain, Italy, United States of America and Asian countries etc. In this study, SNPs in PRNP gene have been investigated to research the PRNP variations and their possible TSE risks in 60 Korean native goats. Based on the sequencing results, we identified four SNPs and three of those polymorphisms (G126A, C414T and C718T) were synonymous and the A428G polymorphism was non-synonymous which changes the amino acid histidine to arginine. Previously, all of these four SNPs were identified in Asian native goats. Specifically, five polymorphisms were identified in Asian native goats and two of them (G126A and C414T) were silent mutations, and the other SNPs (T304G, A428G and T718C) caused amino acid changes (W102G, H143R and S240P). Comparing with SNP results from other breeds, this study is an initial step to understand resistance and susceptibility of this disease in Korean native goats.

Keywords

References

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