ClinVar Miner

Submissions for variant NM_005327.7(HADH):c.710-822C>A

dbSNP: rs183387994
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Broad Center for Mendelian Genomics, Broad Institute of MIT and Harvard RCV001761396 SCV001999902 uncertain significance Hyperinsulinemic hypoglycemia, familial, 4 2021-11-02 criteria provided, single submitter curation The p.Ser246Ter variant (also known as c.710-822C>A) in HADH has not been previously reported in individuals with familial hyperinsulinemic hypoglycemia but has been identified in 0.01% (2/14278) of African/African American chromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstitute.org; dbSNP ID: rs183387994). Although this variant has been seen in the general population in a heterozygous state, its frequency is not high enough to rule out a pathogenic role. This nonsense variant leads to a premature termination codon at position 246, which is predicted to lead to a truncated or absent protein. Although this variant is annotated as a nonsense variant in the canonical transcript, the variant is a deep intronic SNV in the MANE select transcript for the gene. Conservation and expression data indicate that this exon might not be biologically relevant for this disease, and therefore this variant is not expected to result in loss of function of HADH. In summary, the clinical significance of the p.Ser246Ter variant is uncertain. ACMG/AMP Criteria applied: none (Richards 2015).

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