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Am J Med Genet. 1993 Jul 1;46(6):737-44.

Supravalvular aortic stenosis cosegregates with a familial 6; 7 translocation which disrupts the elastin gene.

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  • 1Department of Pediatrics, University of Nevada School of Medicine, Las Vegas 89102.


Supravalvular aortic stenosis (SVAS) is an autosomal dominant disorder characterized by abnormalities of development of the great vessels. SVAS is also commonly part of Williams syndrome. Linkage to the elastin gene on chromosome 7q11 has recently been reported in two kindreds with SVAS. Previous reports of patients with 7q11 deletions have noted great vessel abnormalities in some. We report on a family in which SVAS is cosegregating with a balanced reciprocal translocation, t(6:7) (p21.1;q11.23), providing further evidence that SVAS is the result of a mutation of elastin at 7q11.23 region. The propositus of the translocation family has some minor anomalies which occur in Williams syndrome, suggesting that elastin abnormalities may cause some of the abnormalities found in Williams syndrome.

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