Total submissions: 3
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Illumina Laboratory Services, |
RCV000307648 | SCV000472020 | uncertain significance | Iodotyrosyl coupling defect | 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. |
| Revvity Omics, |
RCV000307648 | SCV003819456 | uncertain significance | Iodotyrosyl coupling defect | 2021-07-15 | criteria provided, single submitter | clinical testing | |
| Women's Health and Genetics/Laboratory Corporation of America, |
RCV005238950 | SCV005886926 | uncertain significance | not specified | 2025-01-28 | criteria provided, single submitter | clinical testing | Variant summary: TG c.2977G>A (p.Ala993Thr) results in a non-conservative amino acid change in the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 0.00032 in 1613918 control chromosomes in the gnomAD database, including 1 homozygotes. This frequency is not significantly higher than estimated for a pathogenic variant in TG causing TG-Related Disorders, allowing no conclusion about variant significance. c.2977G>A has been reported in the literature in the heterozygous state individuals affected with severe congenital hypothyroidism, one of whome also carried a heterozygous variant in a different gene associated with hypothyroidism (Makretskaya_2018). These report(s) do not provide unequivocal conclusions about association of the variant with TG-Related Disorders. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publication have been ascertained in the context of this evaluation (PMID: 30240412). ClinVar contains an entry for this variant (Variation ID: 361934). Based on the evidence outlined above, the variant was classified as uncertain significance. |