ClinVar Miner

Submissions for variant NC_012920.1(MT-TQ):m.4372C>T

dbSNP: rs1603219429
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
ClinGen Mitochondrial Disease Nuclear and Mitochondrial Variant Curation Expert Panel, ClinGen RCV004792550 SCV005407790 uncertain significance Mitochondrial disease 2024-09-24 reviewed by expert panel curation The m.4372C>T variant in MT-TQ has been reported in one individual with primary mitochondrial disease to date however clinical details are not provided (PMIDs: 23463613, 31965079). The variant was present in blood of the proband at 22.8% heteroplasmy and was reportedly absent in an unspecified tissue from the mother (PM6_supporting; PMIDs: 23463613, 31965079). There are no other families reported in the medical literature to our knowledge. This variant is absent in the GenBank dataset, Helix dataset, and gnomAD v3.1.2 (PM2_supporting). Computational predictors are conflicting (MitoTIP: 71.3%; HmtVAR: 0.25). There are no cybrids, single fiber studies, or other functional assays reported on this variant. In summary, this variant meets criteria to be classified as uncertain significance for primary mitochondrial disease inherited in a mitochondrial manner. This classification was approved by the NICHD/NINDS U24 ClinGen Mitochondrial Disease Variant Curation Expert Panel on September 24, 2024. Mitochondrial DNA-specific ACMG/AMP criteria applied (PMID: 32906214): PM6_supporting, PM2_supporting.
Wong Mito Lab, Molecular and Human Genetics, Baylor College of Medicine RCV000850746 SCV000992979 likely pathogenic MELAS syndrome 2019-07-12 criteria provided, single submitter clinical testing The NC_012920.1:m.4372C>T variant in MT-TQ gene is interpreted to be a Likely Pathogenic variant based on the modified ACMG guidelines (unpublished). This variant meets the following evidence codes reported in the guidelines: PM2 PM9, PP3, PP6

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