Allele-specific sequencing confirms novel prion gene polymorphism in creutzfeldt-jakob disease

J. K. Fink, J. T. Warren, I. Drury, D. Murman, M. L. Peacock

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

We analyzed the prion protein coding sequence in a familial Creutzfeldt-Jakob disease patient who did not have any of the currently recognized prion protein mutations. Denaturing gradient gel electrophoresis indicated that the prion protein coding sequence was heterozygous at at least one location. We isolated each allele by denaturing gradient gel electrophoresis and directly sequenced. We found a DNA polymorphism at codon 178 that predicted the amino acid substitution, aspartate asparagine. Whether this represents a benign polymorphism or pathogenic mutation will depend on analysis of the functional consequences of this change. Denaturing gradient gel electrophoresis and allele-specific sequencing proved to be efficient means of analyzing sequence polymorphisms in this gene.

Original languageEnglish (US)
Pages (from-to)1647-1650
Number of pages4
JournalNeurology
Volume41
Issue number10
DOIs
StatePublished - Oct 1991

ASJC Scopus subject areas

  • Clinical Neurology

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