ClinVar Miner

Submissions for variant NC_012920.1(MT-TL2):m.12308A>G

dbSNP: rs2853498
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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 RCV002221590 SCV002498781 benign Mitochondrial disease 2022-01-10 reviewed by expert panel curation The m.12308A>G variant in MT-TL2 was reviewed by the Mitochondrial Disease Nuclear and Mitochondrial Variant Curation Expert Panel as part of the variant pilot for mitochondrial DNA variant specifications (McCormick et al., 2020; PMID: 32906214). This variant is seen in 12.5% of individuals in the GenBank dataset (BA1) including in haplogroups K (99.5% of individuals) and U (98.9% of individuals). Furthermore, this variant is seen in the gnomAD dataset (v3.1.2) at an overall homoplasmic allele frequency of 15% including in haplogroups K (99.9% of individuals) and U (99.7% of individuals). If an affected individual is not a member one of these haplogroups, further evaluation of the variant in that particular individual should be considered. In summary, this variant meets criteria to be classified as benign for primary mitochondrial disease inherited in a mitochondrial manner. This classification was approved by the NICHD U24 Mitochondrial Disease Variant Curation Expert Panel as of August 20, 2020. Mitochondrial DNA-specific ACMG/AMP criteria applied: BA1.
Wong Mito Lab, Molecular and Human Genetics, Baylor College of Medicine RCV000851081 SCV000993315 benign MELAS syndrome 2019-07-12 criteria provided, single submitter clinical testing The NC_012920.1:m.12308A>G variant in MT-TL2 gene is interpreted to be a Benign variant based on the modified ACMG guidelines (unpublished). This variant meets the following evidence codes reported in the guidelines: BA1

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