Journal
EMBO REPORTS
Volume 5, Issue 10, Pages 958-963Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/sj.embor.7400250
Keywords
Huntington's disease; huntingtin; polyglutamine; transcription; chaperones; proteasome
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Huntington's disease (HD) is a late-onset neurodegenerative disorder that is caused by a CAG repeat expansion in the IT15 gene, which results in a long stretch of polyglutamine close to the amino-terminus of the HD protein huntingtin (htt). The normal function of htt, and the molecular mechanisms that contribute to the disease pathogenesis, are in the process of being elucidated. In this review, we outline the potential functions of htt as defined by the proteins with which it has been found to interact. We then focus on evidence that supports a role for transcriptional dysfunction and impaired protein folding and degradation as early events in disease pathogenesis.
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