Analysis of polyglutamine-coding repeats in the TATA-binding protein in different neurodegenerative diseases

Y. R. Wu, H. C. Fung, G. J. Lee-Chen, K. Gwinn-Hardy, L. S. Ro, S. T. Chen, H. M. Hsieh-Li, H. Y. Lin, C. Y. Lin, S. N. Li, C. M. Chen*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

28 Scopus citations

Abstract

Trinucleotide repeat (TNR) expansion in the gene for TATA binding protein (TBP) has recently been described as causal for spinocerebellar ataxia type 17. The normal number of repeats has been considered to be 42 or less. An intermediate range with reduced penetrance has been assumed to be 43-47 CAA/CAG repeats. We examined this gene in 30 patients with autosomal-dominant cerebellar ataxia (ADCA), 35 patients with sporadic ataxia, 11 patients with Huntington's disease (HD), 351 patients with idiopathic Parkinson's disease (PD), 105 patients with Alzheimer's disease (AD), and 291 controls with no history of neurodegenerative disease. Three patients (one with sporadic PD and two with AD) carrying more than 42 TNRs in the TBP gene were identified. This reveals that the phenotype associated with CAG/CAA expansion in the TBP gene may be heterogeneous.

Original languageEnglish
Pages (from-to)539-546
Number of pages8
JournalJournal of Neural Transmission
Volume112
Issue number4
DOIs
StatePublished - 04 2005

Keywords

  • Alzheimer's disease
  • Cag expansion
  • Parkinson's disease
  • SCA17

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