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Genotype of the prion protein gene and phenotype of prion diseases. Masahito Yamada 1 1Department of Neurology and Neurobiology of Aging, Kanazawa University Graduate School of Medical Science Keyword: プリオン蛋白遺伝子 , PrP遺伝子 , Creutzfeldt-Jakob 病 , CJD , Gerstmann-Straussler-Scheinker病 , GSS , 致死性家族性不眠症 , FFI pp.73-89
Published Date 2003/2/10
DOI https://doi.org/10.11477/mf.1431100292
  • Abstract
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 Polymorphisms and mutations have been identified in the human prion protein(PrP)gene. The methionine/valine(M/V)polymorphism at codon 129 and the glutamic acid/lysine(E/K)polymorphism at codon 219 influence the susceptibility and phenotype of prion diseases. Mutations in the PrP gene are related to inherited prion diseases, and the PrP genotypes are associated with distinct clinicopathological phenotypes. The phenotypes of inherited prion diseases include(1)Gerstmann-Sträussler-Scheinker disease(GSS)phenotype[P102L(GSS of classical type), P105L, A117V, G131Y, F198S, Q217R, and a part of the insertional mutations],(2)Creutzfeldt-Jakob disease(CJD)phenotype(D178N-129V, V180I, T183A, T188A, E196K, E200K, V203I, R208H, V210I, E211Q, Q212P, M232R, a part of insertional mutations, and two-octapeptide repeat deletion mutation),(3)fatal familial insomnia(FFI)phenotype(D178N-129M), and(4)cerebral amyloid angiopathy(CAA)phenotype(Y145Stop). It has been recently reported that the phenotypic variability may present despite the identical PrP phenotype, suggesting that linicopathological expression may be influenced by factors as yet unidentified.

(Received:August 27, 2002)


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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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