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Related Experiment Video

Updated: Jul 1, 2026

Detection of Abnormal Prion Protein by Immunohistochemistry
06:38

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Published on: May 5, 2023

BSE case associated with prion protein gene mutation.

Jürgen A Richt1, S Mark Hall

  • 1National Animal Disease Center, United States Department of Agriculture, Agriculture Research Service, Ames, Iowa, United States of America. jricht@vet.k-state.edu

Plos Pathogens
|September 13, 2008
PubMed
Summary
This summary is machine-generated.

Researchers identified a novel mutation, E211K, in the prion protein gene of a cow with H-type Bovine Spongiform Encephalopathy (BSE). This finding links a potential genetic cause to BSE, though the mutation appears rare in cattle populations.

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Area of Science:

  • Veterinary Neurology
  • Molecular Biology
  • Prion Disease Research

Background:

  • Bovine spongiform encephalopathy (BSE), a fatal neurodegenerative disease in cattle, was first identified in 1986.
  • BSE is linked to variant Creutzfeldt-Jakob disease (vCJD) in humans.
  • The genetic origins of BSE remain largely unknown.

Purpose of the Study:

  • To investigate the potential genetic basis of a newly identified H-type BSE case.
  • To analyze the prion protein gene (Prnp) for mutations in affected cattle.
  • To assess the prevalence of identified mutations in broader cattle populations.

Main Methods:

  • Prion protein gene (Prnp) sequencing was performed on an H-type BSE case.
  • Sequence analysis identified a novel mutation, E211K, in the bovine Prnp gene.
  • Epidemiological screening of cattle populations was conducted to determine mutation prevalence.

Main Results:

  • A novel mutation, E211K, was identified in the Prnp gene of a BSE-affected animal.
  • The identified mutation is homologous to a known pathogenic mutation (E200K) causing genetic CJD in humans.
  • The K211 allele was found at an extremely low prevalence (<1 in 2000) in surveyed cattle.

Conclusions:

  • This study reports the first confirmed case of BSE with a potential pathogenic mutation in the bovine Prnp gene.
  • The E211K mutation represents a potential genetic factor contributing to BSE.
  • The low prevalence suggests this specific mutation is unlikely to be the primary driver of widespread BSE outbreaks.