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A mutation in the α tropomyosin gene TPM3 associated with autosomal dominant nemaline myopathy

Laing, N.G., Wilton, S.D., Akkari, P.A., Dorosz, S., Boundy, K., Kneebone, C., Blumbergs, P., White, S., Watkins, H., Love, D.R. and Haan, E. (1995) A mutation in the α tropomyosin gene TPM3 associated with autosomal dominant nemaline myopathy. Nature Genetics, 9 (1). pp. 75-79.

Link to Published Version: http://dx.doi.org/10.1038/ng0195-75
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Abstract

Nemaline myopathies are diseases characterized by the presence in muscle fibres of pathognomonic rod bodies. These are composed largely of alpha−actinin and actin. We have identified a missense mutation in the alpha−tropomyosin gene, TPM3, which segregates completely with the disease in a family whose autosomal dominant nemaline myopathy we had previously localized to chromosome 1p13−q25. The mutation substitutes an arginine residue for a highly conserved methionine in a putative actin−binding site near the N terminus of the alpha−tropomyosin. The mutation may strengthen tropomyosin − actin binding, leading to rod body formation, by adding a further basic residue to the postulated actin−binding motif.

Item Type: Journal Article
Publisher: Nature Publishing Group
Copyright: ©1995 Nature Publishing Group
URI: http://researchrepository.murdoch.edu.au/id/eprint/21808
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