Owczarek-Lipska, Marta; Plattet, Philippe; Zipperle, Ljerka; Drögemüller, Cord; Posthaus, Horst; Dolf, Gaudenz; Braunschweig, Martin (2011). A nonsense mutation in the optic atrophy 3 gene (OPA3) causes dilated cardiomyopathy in Red Holstein cattle. Genomics, 97(1), pp. 51-7. San Diego, Calif.: Elsevier 10.1016/j.ygeno.2010.09.005
Full text not available from this repository. (Request a copy)Cardiomyopathies are severe degenerative disorders of the myocardium that lead to heart failure. During the last three decades bovine dilated cardiomyopathy (BDCMP) was observed worldwide in cattle of Holstein-Friesian origin. In the Swiss cattle population BDCMP affects Fleckvieh and Red Holstein breeds. The heart of affected animals is enlarged due to dilation of both ventricles. Clinical signs are caused by systolic dysfunction and affected individuals die as a result of severe heart insufficiency. BDCMP follows an autosomal recessive pattern of inheritance and the disease-causing locus was mapped to bovine chromosome 18 (BTA18). In the present study we describe the successful identification of the causative mutation in the OPA3 gene located on BTA18 that was previously reported to cause 3-methylglutaconic aciduria type III in Iraqi-Jewish patients. We demonstrated conclusive genetic and functional evidence that the nonsense mutation c.343C>T in the bovine OPA3 gene causes the late-onset dilated cardiomyopathy in Red Holstein cattle.
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