ClinVar Miner

Submissions for variant NM_000814.6(GABRB3):c.689A>G (p.Tyr230Cys)

dbSNP: rs1890231872
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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 RCV001294354 SCV001483228 uncertain significance Epilepsy, childhood absence, susceptibility to, 1; Epilepsy, childhood absence, susceptibility to, 5 2020-06-28 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 missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with GABRB3-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces tyrosine with cysteine at codon 230 of the GABRB3 protein (p.Tyr230Cys). The tyrosine residue is highly conserved and there is a large physicochemical difference between tyrosine and cysteine.

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