Association of chronic wasting disease susceptibility with prion protein variation in white-tailed deer (Odocoileus virginianus)

Yasuko Ishida, Ting Tian, Adam L. Brandt, Amy C. Kelly, Paul Shelton, Alfred L. Roca, Jan Novakofski, Nohra E. Mateus-Pinilla

Research output: Contribution to journalArticlepeer-review

Abstract

Chronic wasting disease (CWD) is caused by prions, infectious proteinaceous particles, PrPCWD. We sequenced the PRNP gene of 2,899 white-tailed deer (WTD) from Illinois and southern Wisconsin, finding 38 haplotypes. Haplotypes A, B, D, E, G and 9 others encoded Q95G96S100N103A123Q226, designated ‘PrP variant A.’ Haplotype C and 4 other haplotypes encoded PrP ‘variant C’ (Q95S96S100N103A123Q226). Haplotype F and two other haplotypes encoded PrP ‘variant F’ (H95G96S100N103A123Q226). The association of CWD with encoded PrP variants was examined in 2,537 tested WTD from counties with CWD. Relative to PrP variant A, CWD susceptibility was lower in deer with PrP variant C (OR = 0.26, p < 0.001), and even lower in deer with PrP variant F (OR = 0.10, p < 0.0001). Susceptibility to CWD was highest in deer with both chromosomes encoding PrP variant A, lower with one copy encoding PrP variant A (OR = 0.25, p < 0.0001) and lowest in deer without PrP variant A (OR = 0.07, p < 0.0001). There appeared to be incomplete dominance for haplotypes encoding PrP variant C in reducing CWD susceptibility. Deer with both chromosomes encoding PrP variant F (FF) or one encoding PrP variant C and the other F (CF) were all CWD negative. Our results suggest that an increased population frequency of PrP variants C or F and a reduced frequency of PrP variant A may reduce the risk of CWD infection. Understanding the population and geographic distribution of PRNP polymorphisms may be a useful tool in CWD management.

Original languageEnglish (US)
Pages (from-to)214-225
Number of pages12
JournalPrion
Volume14
Issue number1
DOIs
StatePublished - Jan 1 2020

Keywords

  • CWD
  • haplotype
  • Illinois
  • incomplete dominance
  • non-synonymous SNPs
  • p.(Gln95His)
  • p.(Gly96Ser)
  • PRNP
  • synonymous SNPs

ASJC Scopus subject areas

  • Biochemistry
  • Cellular and Molecular Neuroscience
  • Cell Biology
  • Infectious Diseases

Fingerprint Dive into the research topics of 'Association of chronic wasting disease susceptibility with prion protein variation in white-tailed deer (Odocoileus virginianus)'. Together they form a unique fingerprint.

Cite this