Article
High mutation rate in dopa-responsive dystonia: detection with comprehensive GCHI screening.
Neurology - 8 Mar 2005
Hagenah J, Saunders-Pullman R, Hedrich K, Kabakci K, Habermann K, Wiegers K, Mohrmann K, Lohnau T, Raymond D, Vieregge P, Nygaard T, Ozelius L J, Bressman S B, Klein C
Abstract excerpt
Mutations in GTP cyclohydrolase I (GCHI) are found in 50 to 60% of cases with dopa-responsive dystonia (DRD). Heterozygous GCHI exon deletions, undetectable by sequencing, have recently been described in three DRD families. We tested 23 individuals with DRD for the different mutation types by conventional and quantitative PCR analyses and found mutations, including two large exon deletions, in 87%. The authors...
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