ClinVar Miner

Submissions for variant NM_001363711.2(DUOX2):c.3689C>T (p.Ala1230Val)

gnomAD frequency: 0.00001  dbSNP: rs557220354
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Illumina Laboratory Services, Illumina RCV000320218 SCV000391350 uncertain significance Thyroid dyshormonogenesis 6 2018-01-12 criteria provided, single submitter clinical testing This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease.
Women's Health and Genetics/Laboratory Corporation of America, LabCorp RCV004701406 SCV005205404 uncertain significance not specified 2024-06-03 criteria provided, single submitter clinical testing Variant summary: DUOX2 c.3689C>T (p.Ala1230Val) results in a non-conservative amino acid change located in the Ferric reductase transmembrane component-like domain (IPR013130) of the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 2.8e-05 in 251352 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.3689C>T has been reported in the literature in an individual affected with Hypothyroidism without strong evidence of causality (Zhang_2023). This report does not provide unequivocal conclusions about association of the variant with Thyroid Dyshormonogenesis 6. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publication has been ascertained in the context of this evaluation (PMID: 37390946). ClinVar contains an entry for this variant (Variation ID: 316146). Based on the evidence outlined above, the variant was classified as uncertain significance.

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