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Molecular assay reagents intended to identify deletions in the copper-transporting alpha polypeptide (ATP7A) gene, located in Xq13.2-q13.3, which encodes for a protein that regulates copper levels. Inherited deletions are present in males with disorders of copper transport such as Menkes\' syndrome and, less frequently, with occipital horn syndrome (formerly Ehlers-Danlos syndrome type IX).
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