Fig. 1From: 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 breedsDistribution of the single nucleotide polymorphisms (SNPs) at coding region of the prion protein gene (PRNP) in various species. Previously reported SNPs at coding region of PRNP gene in human, sheep, goats, cattle, horse and chickens. Edged horizontal bar indicates the length of amino acids. Gray boxes indicate tandem repeat domainsBack to article page