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Molecular assay reagents intended to identify deletions or duplications of the succinate dehydrogenase complex iron sulfur subunit B (SDHB) gene, located at chromosome 1p36.13, which encodes the mitochondrial protein succinate dehydrogenase [ubiquinone] iron-sulfur subunit. Genetic variants at this locus have been associated with Cowden syndrome; gastrointestinal stromal tumors; paraganglioma and gastric stromal sarcoma; paragangliomas; and pheochromocytoma.
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