ClinVar Miner

Submissions for variant NM_001134407.3(GRIN2A):c.1019A>G (p.Asn340Ser)

gnomAD frequency: 0.00001  dbSNP: rs1040519934
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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 RCV001988489 SCV002270146 uncertain significance Landau-Kleffner syndrome 2022-07-18 criteria provided, single submitter clinical testing 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. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 1488256). This variant has not been reported in the literature in individuals affected with GRIN2A-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.0009%). This sequence change replaces asparagine, which is neutral and polar, with serine, which is neutral and polar, at codon 340 of the GRIN2A protein (p.Asn340Ser).

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