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Molecular assay reagents intended to identify deletions in the elastin (ELN) gene, located in 7q11.23, which encodes for elastin, a major structural protein of tissue that must expand quickly and contract completely (e.g., the aorta). Inherited genetic deletions are present in most patients with Williams-Beuren syndrome; some deletions may cause only connective tissue abnormalities and supravalvular aortic stenosis (SVAS).
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