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Mutations in the lamin A/C (LMNA) gene that cause Hutchinson-Gilford progeria syndrome (HGPS) lead to expression of a protein called progerin with 50 amino acids deleted from the tail of prelamin A. In cells from patients with HGPS, both the amount and distribution of heterochromatin are altered. We designed in vitro assays to ask whether such alterations might reflect changes in chromatin, DNA and/or...
Like Duchenne and Becker muscular dystrophies, Emery–Dreifuss muscular dystrophy (EDMD) is characterized by myopathic and cardiomyopathic abnormalities. EDMD has the particularity of being linked to mutations in nuclear proteins. The X-linked form of EDMD is caused by mutations in the emerin gene, whereas autosomal dominant EDMD is caused by mutations in the lamin A/C gene. Emerin colocalizes with...
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