NDLI: Absence of single nucleotide polymorphisms (SNPs) in the open reading frame (ORF) of the prion protein gene (PRNP) in a large sampling of various chicken breeds

Content Provider	Springer Nature : BioMed Central
Author	Kim, Yong-Chan Won, Sae-Young Jeong, Byung-Hoon
Abstract	Background Prion diseases are zoonotic diseases with a broad infection spectrum among mammalian hosts and are caused by the misfolded prion protein (PrPSc) derived from the normal prion protein (PrPC), which encodes the prion protein gene (PRNP). Currently, although several prion disease-resistant animals have been reported, a high dose of prion agent inoculation triggers prion disease infection in these disease-resistant animals. However, in chickens, natural prion disease-infected cases have not been reported, and experimental challenges with prion agents have failed to cause infection. Unlike other prion disease-resistant animals, chickens have shown perfect resistance to prion disease thus far. Thus, investigation of the chicken PRNP gene could improve for understanding the mechanism of perfect prion-disease resistance. Here, we investigated the genetic characteristics of the open reading frame (ORF) of the chicken PRNP gene in a large sampling of various chicken breeds. Results We found only tandem repeat deletion polymorphisms of the chicken PRNP ORF in the 4 chicken breeds including 106 Dekalb White, 100 Ross, 98 Ogolgye and 100 Korean native chickens. In addition, the distribution of chicken insertion/deletion polymorphisms was significantly different among the 4 chicken breeds. Finally, we found significant differences in the number of PRNP SNPs between prion disease-susceptible species and prion disease-resistant species. Notably, chickens lack SNPs in the ORF of the prion protein. Conclusion In this study, we found that the absence of SNPs in the chicken PRNP ORF is a notable feature of animals with perfect resistant to prion disease.
Related Links	https://bmcgenomics.biomedcentral.com/counter/pdf/10.1186/s12864-019-6315-8.pdf
Ending Page	7
Page Count	7
Starting Page	1
File Format	HTM / HTML
ISSN	14712164
DOI	10.1186/s12864-019-6315-8
Journal	BMC Genomics
Issue Number	1
Volume Number	20
Language	English
Publisher	BioMed Central
Publisher Date	2019-12-03
Access Restriction	Open
Subject Keyword	Life Sciences Microarrays Proteomics Animal Genetics and Genomics Microbial Genetics and Genomics Plant Genetics and Genomics PRNP Chicken Prion protein gene Hexapeptide repeat Prion
Content Type	Text
Resource Type	Article
Subject	Biotechnology Genetics
Journal Impact Factor	3.5/2023
5-Year Journal Impact Factor	4.1/2023

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