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Curr Opin Neurobiol. 1996 Oct;6(5):638-43.

Huntington's disease: translating a CAG repeat into a pathogenic mechanism.

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Molecular Neurogenetics Unit, Massachusetts General Hospital East, Charlestown 02129, USA.


The specific pattern of neuronal cell death in Huntington's disease (HD) is triggered by an abnormal version of the huntingtin protein, which is produced by translation of the HD gene defect, an expanded CAG repeat in a novel 4p16.3 gene. The extended amino-terminal polyglutamine segment may act via the protein's inherent activity, increasing it or decreasing it in a graded fashion, or, alternatively, it may confer the ability to interact with a completely different set of cellular pathways, focusing attention on the HD protein's normal and abnormal physiological functions.

[Indexed for MEDLINE]

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