ClinVar Miner

Submissions for variant NM_017777.4(MKS1):c.200G>A (p.Arg67His)

gnomAD frequency: 0.00001  dbSNP: rs780293222
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001245681 SCV001418984 uncertain significance Familial aplasia of the vermis; Meckel-Gruber syndrome 2022-03-15 criteria provided, single submitter clinical testing This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 67 of the MKS1 protein (p.Arg67His). This variant is present in population databases (rs780293222, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with MKS1-related conditions. ClinVar contains an entry for this variant (Variation ID: 970159). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt MKS1 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.
Natera, Inc. RCV001829963 SCV002088726 uncertain significance Meckel syndrome, type 1 2020-02-28 no assertion criteria provided clinical testing
PreventionGenetics, part of Exact Sciences RCV004545148 SCV004800188 uncertain significance MKS1-related disorder 2023-12-27 no assertion criteria provided clinical testing The MKS1 c.200G>A variant is predicted to result in the amino acid substitution p.Arg67His. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.012% of alleles in individuals of Latino descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence.

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