ClinVar Miner

Submissions for variant NM_007055.4(POLR3A):c.1682G>A (p.Arg561Gln)

gnomAD frequency: 0.00001  dbSNP: rs753456807
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000658106 SCV000779877 uncertain significance not provided 2020-09-17 criteria provided, single submitter clinical testing Not observed at a significant frequency in large population cohorts (Lek et al., 2016); In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 30847471)
Broad Institute Rare Disease Group, Broad Institute RCV003485623 SCV004232689 uncertain significance Leukoencephalopathy-ataxia-hypodontia-hypomyelination syndrome 2024-01-24 criteria provided, single submitter curation The p.Arg561Gln variant in POLR3A has been reported in 1 individual, in the compound heterozygous state, with POLR3A-related disorders (PMID: 30847471), and has been identified in 0.007% (3/30612) of South Asian chromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstitute.org; dbSNP ID: rs753456807). Although this variant has been seen in the general population in a heterozygous state, its frequency is low enough to be consistent with a recessive carrier frequency. This variant has also been reported in ClinVar (Variation ID#: 546257) and has been interpreted as a variant of uncertain significance by GeneDx. Computational prediction tools and conservation analyses do not provide strong support for or against an impact to the protein. In summary, the clinical significance of the p.Arg561Gln variant is uncertain. ACMG/AMP Criteria applied: PM2_supporting, PM3 (Richards 2015).

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