© 1993 Oxford University Press
RESEARCH-ARTICLE |
Characterization and localization of the Huntington disease gene product
MGC Department of Clinical Genetics, Erasmus University PO Box 1738, 3000 DR Rotterdam 1MGC Department of Human Genetics, Leiden University Leiden, The Netherlands 2Department of Neurology, Leiden University Leiden, The Netherlands
*To whom correspondence should be addressed
Received October 14, 1993; Revised October 22, 1993; Accepted October 22, 1993
The recent identification of the Huntington's disease (HD) gene, enabled us to synthesize oligopeptides corresponding with the carboxy-terminal end of the predicted HD-gene (IT15) product. Immunobiochemical studies with polyclonal antibodies directed against this synthetic peptide (position 31143141) on lymphobiastold cells from normal individuals and patients with Huntington disease, revealed the presence of a protein (huntingtin) with a molecular mass of approximately 330 kDa. Immunocytochemical studies showed a cytoplasmic localization of huntingtin in various cell types including neurons. In most of the neuronal cells the protein was also present in the nucleus. No difference in molecular mass or intracellular localization was found between normal and mutant cells.
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