ClinVar Miner

Submissions for variant NC_000014.8:g.(74764773_74766250)_(74769768_?)del

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Women's Health and Genetics/Laboratory Corporation of America, LabCorp RCV002302521 SCV002598806 likely pathogenic Cobalamin C disease 2022-09-22 criteria provided, single submitter clinical testing Variant summary: The variant identified by MLPA or other technology involves the deletion of exons 1-3 in the ABCD4 gene. A presumed nomenclature of c.(?_-153)_(285+1_286-1)del has been designated for the purposes of this classification. Although exact breakpoints of this deletion are not known, it is expected to result in an absent or disrupted ABCD4 protein, a known mechanism of disease. The variant was absent in 21694 control chromosomes (gnomAD SVs). To our knowledge, no occurrence of c.(?_-153)_(285+1_286-1)del in individuals affected with Methylmalonic Acidemia With Homocystinuria and no experimental evidence demonstrating its impact on protein function have been reported. One ClinVar submitter (evaluation after 2014) cites the variant as pathogenic. Based on the evidence outlined above, the variant was classified as likely pathogenic.

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