NR AUDK
AU Pastore,M.; Chin,S.S.M.; Bell,K.L.; Dong,Z.; Yang,Q.; Yang,L.; Yuan,J.; Chen,S.G.; Gambetti,P.; Zou,W.Q.
TI Creutzfeldt-Jakob disease (CJD) with a mutation at codon 148 of prion protein gene: relationship with sporadic CJD.
QU American Journal of Pathology 2005 Dec; 167(6): 1729-38
PT case reports; journal article
AB Creutzfeldt-Jakob disease (CJD), the most common human prion disease, includes sporadic (s) and familial (f) forms. Regardless of etiology, both forms are thought to share the pathogenic mechanism whereby the cellular prion protein (PrPc) converts into its pathogenic isoform (PrPsc). While PrPc conversion is thought to be random in sCJD, conversion in fCJD is facilitated by the congenital presence of mutated PrP. Differences in PrP genotype (PRNP) and in conversion circumstances lead to PrPsc with distinct characteristics that elicit different disease phenotypes. Here, we describe a case of fCJD with a substitution of histidine (H) for arginine (R) at codon 148 (R148H) and heterozygosity of the methionine/valine (M/V) polymorphic codon 129, with the 129M allele coupled with the mutation. The disease phenotype and all major characteristics of PrPsc of fCJD(R148H) were virtually indistinguishable from those of sCJDMV2, which has features different from those of any other sCJD. Therefore, despite the differences in etiology, PRNP, and conversion process, the two forms of PrPsc had similar characteristics. Furthermore, comparison of fCJD(R148H) with a recently reported case carrying R148H and homozygosity at codon 129 suggests that codon 129 coupled with the mutation as well as that located on the normal allele can modify major phenotypic and PrPsc features of fCJD(R148H).
MH Amino Acid Substitution; Autopsy; Brain/pathology; Codon/genetics; Creutzfeldt-Jakob Syndrome/*genetics/pathology; Female; Genotype; Heterozygote Detection; Humans; Male; Methionine; Middle Aged; *Mutation; Open Reading Frames; Pedigree; Phenotype; PrPc Proteins/*genetics; PrPsc Proteins/*genetics; Protein Conformation; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Valine
AD Manuela Pastore, Zhiqian Dong, Qiwei Yang, Lizhu Yang, Jue Yuan, Shu G. Chen, Pierluigi Gambetti (pxg13@case.edu), Wen-Quan Zou, Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA; Steven S. Chin, the University of Utah Health Science Center, Salt Lake City, Utah; Karen L. Bell, Columbia University College of Physicians & Surgeons, New York, New York; Zhiqian Dong, Lizhu Yang, Jue Yuan, Shu G. Chen, Pierluigi Gambetti (pxg13@case.edu), Wen-Quan Zou, National Prion Disease Pathology Surveillance Center, Cleveland, Ohio
SP englisch
PO USA