ClinVar Miner

Submissions for variant NM_000834.5(GRIN2B):c.2320C>T (p.Arg774Cys)

dbSNP: rs2136413178
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001360140 SCV001556043 uncertain significance Intellectual disability, autosomal dominant 6; Developmental and epileptic encephalopathy, 27 2020-02-17 criteria provided, single submitter clinical testing This sequence change replaces arginine with cysteine at codon 774 of the GRIN2B protein (p.Arg774Cys). The arginine residue is moderately conserved and there is a large physicochemical difference between arginine and cysteine. 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 missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals with GRIN2B-related conditions. This variant is not present in population databases (ExAC no frequency).

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