BSE case associated with prion protein gene mutation
View abstract on 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.
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.