ClinVar Miner

Submissions for variant NM_002168.4(IDH2):c.1129C>T (p.Arg377Cys)

gnomAD frequency: 0.00001  dbSNP: rs765712414
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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 RCV000795261 SCV000934710 uncertain significance D-2-hydroxyglutaric aciduria 2 2020-03-06 criteria provided, single submitter clinical testing This variant has not been reported in the literature in individuals with IDH2-related disease. 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. 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. This sequence change replaces arginine with cysteine at codon 377 of the IDH2 protein (p.Arg377Cys). The arginine residue is highly conserved and there is a large physicochemical difference between arginine and cysteine. This variant is present in population databases (rs765712414, ExAC 0.006%).

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