ClinVar Miner

Submissions for variant GRCh37/hg19 Xp21.2(chrX:31458626-31479641)x0

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Quest Diagnostics Nichols Institute San Juan Capistrano RCV002472518 SCV002772386 pathogenic not provided 2021-07-06 criteria provided, single submitter clinical testing The Xp21.2 deletion interval involves one exon of the DMD (dystrophin) gene (OMIM 300377). Dystrophinopathies including Becker Muscular Dystrophy (BMD) (OMIM 300376), Duchenne Muscular Dystrophy (DMD) (OMIM 310200), and DMD-Associated Dilated Cardiomyopathy (OMIM 302045) are X-linked recessive disorders caused by entire or intragenic DMD deletions and duplications as well as point mutations, primarily affecting the isoform expressed in the skeletal muscles. Age of onset and severity of progressive muscular weakness depend on the mutation characteristics (i.e., out- or in-frame in the case of exonic deletions or duplications). Manifesting carriers may demonstrate variable degrees of symptoms (mild, moderate, or severe muscular dystrophy) depending, in part, on patterns of X-chromosome inactivation. Carrier females might be at risk for dilated cardiomyopathy (DCM) (Darras BT et al., GeneReviews [Internet]. Available from: https://www.ncbi.nlm.nih.gov/books/NBK1119/).

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