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Molecular assay reagents intended to identify deletions or duplications of the succinate dehydrogenase complex subunit D (SDHD) gene, located at chromosome 11q23.1, which encodes the mitochondrial protein succinate dehydrogenase [ubiquinone] cytochrome b small subunit. Genetic variants at this locus have been associated with carcinoid tumor of the intestine; Cowden syndrome; mitochondrial complex II deficiency; paraganglioma and gastric stromal sarcoma; paragangliomas; and pheochromocytoma.
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