Volume 45, Issue 6 pp. 812-816
Brief Communication

A novel phenotype in familial Creutzfeldt-Jakob disease: Prion protein gene E200K mutation coupled with valine at codon 129 and type 2 protease-resistant prion protein

Johannes A. Hainfellner MD

Johannes A. Hainfellner MD

Institute of Neurology, University of Vienna the Austrian Reference Center for Human Prion Diseases, Vienna, Austria

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Piero Parchi MD

Piero Parchi MD

Division of Neuropathology, Institute of Pathology, Case Western Reserve University, Cleveland, OH

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Tetsuyuki Kitamoto MD

Tetsuyuki Kitamoto MD

Department of Neurological Science, Tohoku University, Sendai, Japan

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Christa Jarius MD

Christa Jarius MD

Institute of Neurology, University of Vienna the Austrian Reference Center for Human Prion Diseases, Vienna, Austria

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Pierluigi Gambetti MD

Pierluigi Gambetti MD

Division of Neuropathology, Institute of Pathology, Case Western Reserve University, Cleveland, OH

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Herbert Budka MD

Corresponding Author

Herbert Budka MD

Institute of Neurology, University of Vienna the Austrian Reference Center for Human Prion Diseases, Vienna, Austria

Institute of Neurology, AKH, Währinger Gürtel 18-20, POB 48, A-1097 Vienna, AustriaSearch for more papers by this author

Abstract

A novel phenotype of familial Creutzfeldt-Jakob disease (CJD) with mutated codon 200 of the prion protein gene (PRNP) coupled with the valine codon 129 (E200K-129V haplotype) has two features never observed in subjects carrying the pathogenic mutation coupled with the methionine codon 129 (E200K-129M haplotype): (1) plaque-like prion protein (PrP) deposits in the cerebellum and (2) type 2 protease-resistant prion protein (PrPres). This observation further underlines the role of codon 129 on the mutated PRNP allele in modulating the phenotype of familial prion diseases. Ann Neurol 1999;45:812–816

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