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. 2007 Sep;8(3):299-301.
doi: 10.4142/jvs.2007.8.3.299.

Identification of single-nucleotide polymorphisms of the prion protein gene in sika deer (Cervus nippon laiouanus)

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Identification of single-nucleotide polymorphisms of the prion protein gene in sika deer (Cervus nippon laiouanus)

Hyun Jeong Jeong et al. J Vet Sci. 2007 Sep.

Abstract

Polymorphisms of the prion protein gene (PRNP) have been detected in several cervid species. In order to confirm the genetic variations, this study examined the DNA sequences of the PRNP obtained from 33 captive sika deer (Cervus nippon laiouanus) in Korea. A total of three single-nucleotide polymorphisms (SNPs) at codons 100, 136 and 226 in the PRNP of the sika deer were identified. The polymorphic site located at codon 100 has not been reported. The SNPs detected at codons 100 and 226 induced amino acid substitutions. The SNP at codon 136 was a silent mutation that does not induce any amino acid change. The genotype and allele frequencies were determined for each of the SNPs.

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Figures

Fig. 1
Fig. 1
Amplification of the sika deer prion gene (PRNP). M; 100 bp DNA ladder, lane 1; 771 bp of the sika deer PRNP.
Fig. 2
Fig. 2
Single-nucleotide polymorphism at codon 100 in the sika deer PRNP. Electropherograms show two genotypes at codon 100 in the sika deer PRNP. Left panel; AGT/AGT (Ser/Ser), right panel; AGT/GGT (Ser/Gly). No GGT/GGT (Gly/Gly) homozygote was detected in this study.
Fig. 3
Fig. 3
Single-nucleotide polymorphism at codon 136 in the sika deer PRNP. The electropherograms demonstrate three genotypes at codon 136 in the sika deer PRNP. Left panel; GCT/GCT (Ala/Ala), middle panel; GCT/GCC (Ala/Ala), right panel; GCC/GCC (Ala/Ala).
Fig. 4
Fig. 4
Single-nucleotide polymorphism at codon 226 in the sika deer PRNP. The electropherograms show three genotypes at codon 226 in the sika deer PRNP. Left panel; CAG/CAG (Gln/Gln), middle panel; CAG/GAG (Gln/Glu), right panel; GAG/GAG (Glu/Glu).

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