ClinVar Miner

Submissions for variant NM_000702.4(ATP1A2):c.604C>T (p.Arg202Trp)

dbSNP: rs1219118149
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001975614 SCV002257092 likely pathogenic Familial hemiplegic migraine 2021-08-19 criteria provided, single submitter clinical testing This sequence change replaces arginine with tryptophan at codon 202 of the ATP1A2 protein (p.Arg202Trp). The arginine residue is highly conserved and there is a moderate physicochemical difference between arginine and tryptophan. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. This variant disrupts the p.Arg202 amino acid residue in ATP1A2. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 17142831, 22117059). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. 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 expected to disrupt ATP1A2 protein function. This variant has not been reported in the literature in individuals affected with ATP1A2-related conditions. This variant is not present in population databases (ExAC no frequency).

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